LaunchDarkly

LaunchDarkly is a feature management and runtime control platform. Development teams use it to wrap releases in feature flags, target variations at specific users, contexts, segments and environments, run experiments and guarded rollouts, and turn a change back off without shipping new code. The platform now extends the same targeting, approval and audit machinery to AI through AgentControl, where prompts, models, tools and agent graphs are versioned and rolled out as configs, and to observability through session replay, errors, logs and traces. LaunchDarkly publishes a 401-operation REST API, more than thirty SDKs across thirteen client-side, thirteen server-side and four edge runtimes, a self-hosted Relay Proxy, a CLI, and a hosted MCP server exposing 125 tools to AI clients. LaunchDarkly is operated by Catamorphic Co.

LaunchDarkly publishes 68 API contracts indexed on the APIs.io network, including Webhooks API, Access Tokens API, Account Members API, and 65 more. Tagged areas include Feature Flags, Feature Management, Experimentation, Observability, and Continuous Delivery.

The LaunchDarkly catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.

LaunchDarkly’s developer surface includes authentication, engineering blog, CLI, changelog, sandbox, documentation, API reference, and 44 more developer resources.

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85.5/100 exemplar ▬ flat Agent 61/100 agent ready Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

4 published contracts 1 MCP Servers 3 Agent Skills 16 Features

Feature Flags Feature Management Experimentation Observability Continuous Delivery DevOps AI Agents Release Management Developer Tools T1

What this lets a business do 5

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Software Release & Deployment Management

BC-4210

ApprovalsApprovals (beta)Client-Side EvaluationClient-Side StreamingContext settingsFeature Flags

POST /flags/{projectKey} POST /flags/{projectKey}/{flagKey}/approval-requests/{environmentKey} GET /sdk/evalx/{envId}/contexts/{contextBase64} POST /flags/{projectKey}/{flagKey}/triggers/{environmentKey}

Product Telemetry & Experimentation Management

BC-4280

ExperimentsHoldoutsMetricsMetrics (beta)

POST /api/v2/projects/{projectKey}/environments/{environmentKey}/experiments POST /projects/{projectKey}/environments/{environmentKey}/experiments POST /api/v2/projects/{projectKey}/environments/{environmentKey}/holdouts POST /api/v2/metrics/{projectKey}

Software Product Engineering Management

BC-4200

Insights charts (beta)Insights deployments (beta)Insights pull requests (beta)Insights scores (beta)

GET /api/v2/engineering-insights/charts/deployments/frequency GET /api/v2/engineering-insights/charts/lead-time GET /api/v2/engineering-insights/insights/scores POST /api/v2/engineering-insights/deployment-events

Developer Platform & API Ecosystem Management

BC-4270

OAuth2 ClientsWebhooks

POST /api/v2/oauth/clients POST /webhooks

Cybersecurity Management

BC-620

Account members

What people ask LaunchDarkly 28

The questions people put to an LLM, and the jobs they hand an agent, that LaunchDarkly's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

launchdarkly Projects API List projects on the dev server “Which projects are configured on my local dev server?” Create a new project “How do I create a new project with its own environments?” Get a dev server project's sync configuration “How do I see how a project is configured to sync on the dev server?” Update or resync a dev server project “How do I force the dev server to resync a project?”

launchdarkly Environments API List a project's environments “What environments exist in this project?” Create an environment in a project “How do I add a new staging environment to a project?” Get one environment's details “How do I look up the settings of a specific environment?” Update an environment's settings “How do I rename an environment or change its color?”

launchdarkly Segments API List segments in an environment “What user segments exist in this environment?” Create a user segment “How do I create a segment of beta users?” Get one segment “How do I see who is included in a specific segment?” Update a segment “How do I add users to an existing segment?”

launchdarkly Webhooks API List webhooks “Which webhooks are configured in our account?” Create a webhook “How do I get notified at my own URL when something changes?” Get one webhook “How do I look up the settings of a specific webhook?” Update a webhook “How do I change a webhook's URL or turn it off?”

launchdarkly Feature Flags API List a project's feature flags “Which feature flags exist in this project?” Create a feature flag “How do I create a new feature flag with custom variations?” Get a feature flag and its targeting “How do I see a flag's targeting rules in each environment?” Update a flag's targeting or settings “How do I turn a flag on or change its targeting rules?”

LaunchDarkly Debug Sessions API List debug sessions with event counts “What debug sessions do I have and how many events does each hold?” Delete a debug session and its events “How do I delete a debug session I no longer need?” Get events from a debug session “How can I see the events captured in a specific debug session?”

LaunchDarkly Backup API Download the backup “How do I download the current backup?” Restore from a backup “How do I restore data from a backup?”

launchdarkly Teams API List teams “What teams exist in our account?” Create a team “How do I create a team and add members to it?”

launchdarkly Server-Side Streaming API Stream all flag and segment data to a server “How does a server SDK get real-time updates for flags and segments together?” Stream only flag updates to a server “Can I stream just flag changes without segment data?”

launchdarkly Relay Proxy Configurations API List Relay Proxy auto-configurations “What Relay Proxy automatic configurations do we have?” Create a Relay Proxy auto-configuration “How do I generate a key for a new Relay Proxy instance?”

launchdarkly Metrics API List a project's metrics “What metrics are defined in this project?” Create a metric for experiments “How do I create a click metric to measure an experiment?”

launchdarkly Flag Triggers API List triggers on a flag “What triggers are set up to toggle this flag?” Create a trigger URL that toggles a flag “How can a monitoring tool turn a flag off automatically?”

Showing 12 of 28 APIs with phrasing — see every API.

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 85.5/100 · exemplar

Contract Quality 13.9 / 19

Developer Ergonomics 12.1 / 15

Access Clarity 15.0 / 15

Operational Transparency 9.0 / 10

Contract Governance 2.9 / 9

Discoverability 6.0 / 8

Regulatory Posture 6.8 / 15

Create-or-Update Ergonomics 3.3 / 10

Agent readiness — 61/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 0 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
Distinct Operations +3 pts — share of operations whose summary is unique within its document after light normalisation; na without two summarised operations
Consent & Bot Identity +3 pts — common[].type includes AIPREF, ContentSignal, WebBotAuth, or HTTPMessageSignatures

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Governance scores 31.8 — up to +8.2 composite points
Contract Quality scores 74.2 — up to +6.5 composite points
Developer Ergonomics scores 80.4 — up to +3.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/launchdarkly/apis.yml: open an issue on github.com/api-evangelist/launchdarkly to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Developer Tools	builds-on	55.2	-	2
AI Agent Tools (MCP servers, A2A agents)	builds-on	55.2	-	2
AI Agents (A2A agent cards)	builds-on	55.2	-	2
Official SDKs on Package Registries	builds-on	55.2	-	2
Agent Skills (SKILL.md packages)	builds-on	55.2	-	2
IDE Extension Marketplaces (JetBrains, VS Code, Open VSX, Docker Verified Publishers, PyPI orgs)	builds-on	55.2	-	2
Accelerator Portfolios (Y Combinator, 500 Global, Antler participation)	builds-on	55.2	-	2
Infrastructure-as-Code Provider Registries (Terraform, OpenTofu, Pulumi)	builds-on	55.2	-	2
GitHub Marketplace (GitHub-native publisher layer)	builds-on	55.2	-	2
Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification)	builds-on	55.2	-	2
Atlassian Marketplace (builders on Jira, Confluence, Bitbucket)	builds-on	55.2	-	2
Jamstack Hosting Integrations (Vercel Marketplace and Netlify Integrations publishers)	builds-on	55.2	-	2
Raycast Store Extensions (first-party publishers + community-wrapped products)	builds-on	55.2	-	2
Configuration-Management Content Registries (Ansible Galaxy, Chef Supermarket)	builds-on	55.2	-	2
Official SDKs on Packagist, pub.dev and Hex	builds-on	55.2	-	2
TX-RAMP Certified Cloud Products (Texas DIR)	builds-on	55.2	-	2
APIs.guru OpenAPI Directory (API definition directory)	builds-on	55.2	-	2
Official SDKs on JSR (JavaScript Registry)	builds-on	55.2	-	2

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 7

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

SCIM 2.0

prose — states compatibility; nothing published to check it against

5 core of 24 operations graded · api-commons/identity

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

AsyncAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 68

Individual APIs this provider publishes, each with its own machine-readable definition.

LaunchDarkly Webhooks API

The LaunchDarkly Webhooks API allows developers to build custom integrations that subscribe to activity events within LaunchDarkly. When actions occur such as flag changes, proj...

launchdarkly Access Tokens API

Create and manage personal and service access tokens used to authenticate API requests.

launchdarkly Account Members API

Manage team members, invitations, and member roles within a LaunchDarkly account.

launchdarkly Approvals API

Manage approval requests and workflows for flag changes that require review before deployment.

launchdarkly Audit Log API

Access the change history of all modifications made to resources in the LaunchDarkly account.

launchdarkly Client-Side Evaluation API

Flag evaluation endpoints for client-side and mobile SDKs using environment IDs or mobile keys for authentication.

launchdarkly Client-Side Streaming API

Server-Sent Events streaming endpoints for client-side and mobile SDKs to receive real-time flag updates.

launchdarkly Code References API

View code references that show where feature flags are used in your codebase.

launchdarkly Custom Roles API

Define custom roles with fine-grained permissions using resource specifiers and actions.

launchdarkly Environments API

Manage environments within projects such as production, staging, and development.

launchdarkly Experiments API

Create and manage experiments to measure the impact of feature flag variations on metrics.

launchdarkly Feature Flags API

Create, update, and manage feature flags and their targeting rules across projects and environments.

launchdarkly Flag Triggers API

Create triggers that allow external services to toggle feature flags via unique webhook URLs.

launchdarkly Integration Audit Log Subscriptions API

Manage integrations that subscribe to audit log events and forward them to external tools.

launchdarkly Metrics API

Define and manage metrics used to measure experiment outcomes and feature flag impact.

launchdarkly PHP Polling API

Polling endpoints for PHP server-side SDKs which do not support streaming mode.

launchdarkly Projects API

Manage projects that organize feature flags and other resources.

launchdarkly Relay Proxy Configurations API

Manage automatic configuration entries for LaunchDarkly Relay Proxy instances.

launchdarkly Releases API

Manage release pipelines for coordinating feature flag rollouts across environments.

launchdarkly Segments API

Create and manage user segments for targeting groups of contexts with feature flags.

launchdarkly Server-Side Evaluation API

Flag evaluation endpoints for server-side SDKs using SDK keys for authentication.

launchdarkly Server-Side Streaming API

Server-Sent Events streaming endpoints for server-side SDKs to receive real-time flag updates.

launchdarkly Status API

Health and status monitoring endpoints for the Relay Proxy. No authentication is required for these endpoints.

launchdarkly Tags API

The Tags API from launchdarkly — 1 operation(s) for tags.

launchdarkly Teams API

Organize account members into teams for collaborative flag management and permissions.

launchdarkly Webhooks API

Configure webhooks to receive HTTP POST notifications when changes occur in LaunchDarkly.

launchdarkly Workflows API

Create and manage automated workflows for scheduling and orchestrating flag changes.

LaunchDarkly MCP Server

LaunchDarkly operates a first-party hosted Model Context Protocol server at https://mcp.launchdarkly.com/mcp/launchdarkly, reachable by any MCP client over streamable HTTP and a...

LaunchDarkly Backup API

The Backup API from LaunchDarkly — 1 operation(s) for backup.

LaunchDarkly Debug Sessions API

The Debug Sessions API from LaunchDarkly — 3 operation(s) for debug sessions.

LaunchDarkly Account usage (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Adaptive triggers API

Adaptive triggers automatically update the targeting of a feature flag or AgentControl config when a trigger source, such as an observability alert, fires. Each adaptive trigger...

LaunchDarkly Agent Control API

The AgentControl API allows you to create, retrieve, and edit AgentControl configs, config variations, and AI model configurations. **This product name has changed, but the API ...

LaunchDarkly Announcements API

The announcements API lets you create and update a custom announcement banner that appears in the LaunchDarkly user interface for everyone in your organization. You can use the ...

LaunchDarkly Applications (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Approvals (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Context settings API

You can use the context settings API to assign a context to a specific variation for any feature flag. To learn more, read [View and manage contexts](https://launchdarkly.com/do...

LaunchDarkly Contexts API

Contexts are people, services, machines, or other resources that encounter feature flags in your product. Contexts are identified by their `kind`, which describes the type of re...

LaunchDarkly Data Export destinations API

> ### Data Export is an add-on feature > > Data Export is available as an add-on for customers on a Foundation or Enterprise plan. To learn more, [read about our pricing](https:...

LaunchDarkly Feature flags (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Flag import configurations (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Flag links (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Follow flags API

Follow flags to receive email updates about targeting changes to a flag in a project and environment. Several of the endpoints in the follow flags API require a member ID. The m...

LaunchDarkly Holdouts API

> ### Available for customers using Experimentation > > Holdouts are available to customers using [Experimentation](https://launchdarkly.com/docs/api/experiments). Holdouts let ...

LaunchDarkly Insights charts (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Insights deployments (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Insights flag events (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Insights pull requests (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Insights repositories (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Insights scores (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Integration delivery configurations (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Integrations (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly IP Allowlist (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Layers API

> ### Available for customers using Experimentation > > Layers are available to customers using [Experimentation](https://launchdarkly.com/docs/api/experiments). There are some ...

LaunchDarkly Metrics (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly OAuth2 Clients API

The OAuth2 client API allows you to register a LaunchDarkly OAuth client for use in your own custom integrations. Registering a LaunchDarkly OAuth client allows you to use Launc...

LaunchDarkly Other API

Other requests available in the LaunchDarkly API.

LaunchDarkly Persistent store integrations (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Release pipelines (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Release policies (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Releases (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Scheduled changes API

> ### Scheduled flag changes is an Enterprise feature > > Scheduled flag changes is available to customers on an Enterprise plan. To learn more, [read about our pricing](https:/...

LaunchDarkly SDK Keys (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly Teams (beta) API

> ### This feature is in beta > > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with each call. To learn mor...

LaunchDarkly User settings API

> ### Contexts are now available > > After you have upgraded your LaunchDarkly SDK to use contexts instead of users, you should use [Contexts](https://launchdarkly.com/docs/api/...

LaunchDarkly Users API

> ### Contexts are now available > > After you have upgraded your LaunchDarkly SDK to use contexts instead of users, you should use [Contexts](https://launchdarkly.com/docs/api/...

LaunchDarkly Views API

The views API allows you to create, retrieve, and edit views, and link other resources to views. A view is a resource in LaunchDarkly that you can use to logically group other r...

LaunchDarkly Workflow templates API

> ### Workflows are in maintenance mode > > The workflows feature is in maintenance mode, and is planned for future deprecation at a date not yet specified. We will work with ex...

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Open Collections 28

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

LaunchDarkly Relay Proxy Access Tokens API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Account Members API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Approvals API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Audit Log API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Client-Side Evaluation API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Client-Side Streaming API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Code References API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Custom Roles API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Environments API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Experiments API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Feature Flags API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Flag Triggers API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Integration Audit Log Subscriptions API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Metrics API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens PHP Polling API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Projects API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Relay Proxy Configurations API

OPEN COLLECTION

LaunchDarkly Relay Proxy

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Releases API

OPEN COLLECTION

LaunchDarkly REST API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Segments API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Server-Side Evaluation API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Server-Side Streaming API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Status API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Tags API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Teams API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Webhooks API

OPEN COLLECTION

LaunchDarkly Relay Proxy Access Tokens Workflows API

OPEN COLLECTION

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MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

LaunchDarkly MCP Server

LaunchDarkly operates a first-party hosted MCP server covering feature management, AgentControl and observability, and also publishes a local stdio server for the federal and EU...

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

launchdarkly-audit-and-clean-up-flags

AGENT SKILL

launchdarkly-governed-flag-change

AGENT SKILL

launchdarkly-ship-a-feature-flag

AGENT SKILL

LaunchDarkly API pricing

Prices published by LaunchDarkly, read 2026-10-28 from launchdarkly.com/pricing/.

Plan	Price
Developer	$0/ mo, forever Includes: Unlimited seats; 100K experimentation MAU/mo; 10M logs and 10M traces /mo; unlimited feature flags;
Foundation	$10 per Service Connection/ mo Includes: 5 service connections included; 5K session replays, 5K errors, 10M logs, and 10M traces each month;
Enterprise	Custom pricing Includes: Everything in Foundation, plus advanced targeting, custom roles & teams, workflows, SCIM, custom AI
Guardian	Paid add-on Includes: Release monitoring, guardrail metrics, automatic rollback, advanced observability, exposure insights

Plan details, limits and sources →

Rate limits

Global: undisclosed 10 seconds
Route-level: undisclosed (varies by route) 10 seconds
Access token: undisclosed 10 seconds

All 4 limits →

Billed by: account · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Launchdarkly Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Launchdarkly Rate Limits

4 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

LaunchDarkly

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Launchdarkly Finops

FINOPS

Features 16

Notable capabilities this provider offers.

Developer free: unlimited flags, seats, 30 SDKs, 5K replays, 10M logs

Foundation: $12/mo per Service Connection + $10 per 1k client MAU

Enterprise custom: SAML/SCIM, custom roles, release automation

Guardian custom: release monitoring, auto rollback, guardrails

REST API for projects, environments, flags, segments

Per-route rate limits + global 200 req/10s

Server-side, client-side, mobile SDKs (30+ languages)

Streaming SDK for real-time flag updates

Webhooks for flag and audit events

OAuth 2.0 + Personal API tokens + service accounts

Experimentation with statistical analysis

Code references (find flag usage in code)

Workflows with scheduling and approvals (Enterprise)

Release pipelines and progressive rollouts

Observability (Errors + Logs + Traces + Replays)

Galaxy AI features for flag governance

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Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

LaunchDarkly Webhooks Events

LaunchDarkly sends webhook notifications as HTTP POST requests when changes occur within the platform. The webhook payload format is identical to audit log entries and includes ...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Launchdarkly Context

0 classes · 15 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

LaunchDarkly — asyncapi rules

8 rules · 1 errors 6 warnings 1 info

SPECTRAL

LaunchDarkly — jsonschema rules

6 rules · 4 warnings 2 info

SPECTRAL

OpenAPI Overlays 29

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Launchdarkly Access Tokens Api Phrasing Overlay

3 actions · phrasing · launchdarkly-access-tokens-api-openapi.yml

GENERATED

Launchdarkly Account Members Api Phrasing Overlay

3 actions · phrasing · launchdarkly-account-members-api-openapi.yml

GENERATED

Launchdarkly Approvals Api Phrasing Overlay

3 actions · phrasing · launchdarkly-approvals-api-openapi.yml

GENERATED

Launchdarkly Audit Log Api Phrasing Overlay

3 actions · phrasing · launchdarkly-audit-log-api-openapi.yml

GENERATED

Launchdarkly Backup Api Phrasing Overlay

3 actions · phrasing · launchdarkly-backup-api-openapi.yml

GENERATED

Launchdarkly Client Side Evaluation Api Phrasing Overlay

2 actions · phrasing · launchdarkly-client-side-evaluation-api-openapi.yml

GENERATED

Launchdarkly Client Side Streaming Api Phrasing Overlay

2 actions · phrasing · launchdarkly-client-side-streaming-api-openapi.yml

GENERATED

Launchdarkly Code References Api Phrasing Overlay

2 actions · phrasing · launchdarkly-code-references-api-openapi.yml

GENERATED

Launchdarkly Custom Roles Api Phrasing Overlay

3 actions · phrasing · launchdarkly-custom-roles-api-openapi.yml

GENERATED

Launchdarkly Debug Sessions Api Phrasing Overlay

4 actions · phrasing · launchdarkly-debug-sessions-api-openapi.yml

GENERATED

Launchdarkly Environments Api Phrasing Overlay

6 actions · phrasing · launchdarkly-environments-api-openapi.yml

GENERATED

Launchdarkly Experiments Api Phrasing Overlay

3 actions · phrasing · launchdarkly-experiments-api-openapi.yml

GENERATED

Launchdarkly Feature Flags Api Phrasing Overlay

6 actions · phrasing · launchdarkly-feature-flags-api-openapi.yml

GENERATED

Launchdarkly Flag Triggers Api Phrasing Overlay

3 actions · phrasing · launchdarkly-flag-triggers-api-openapi.yml

GENERATED

Launchdarkly Integration Audit Log Subscriptions Api Phrasing Overlay

2 actions · phrasing · launchdarkly-integration-audit-log-subscriptions-api-openapi.yml

GENERATED

Launchdarkly Metrics Api Phrasing Overlay

3 actions · phrasing · launchdarkly-metrics-api-openapi.yml

GENERATED

Launchdarkly Php Polling Api Phrasing Overlay

2 actions · phrasing · launchdarkly-php-polling-api-openapi.yml

GENERATED

Launchdarkly Projects Api Phrasing Overlay

12 actions · phrasing · launchdarkly-projects-api-openapi.yml

GENERATED

Launchdarkly Relay Proxy Configurations Api Phrasing Overlay

3 actions · phrasing · launchdarkly-relay-proxy-configurations-api-openapi.yml

GENERATED

Launchdarkly Releases Api Phrasing Overlay

3 actions · phrasing · launchdarkly-releases-api-openapi.yml

GENERATED

Launchdarkly Rest Api Overlay

8 actions · documentation · openapi.json

GENERATED

Launchdarkly Segments Api Phrasing Overlay

6 actions · phrasing · launchdarkly-segments-api-openapi.yml

GENERATED

Launchdarkly Server Side Evaluation Api Phrasing Overlay

2 actions · phrasing · launchdarkly-server-side-evaluation-api-openapi.yml

GENERATED

Launchdarkly Server Side Streaming Api Phrasing Overlay

3 actions · phrasing · launchdarkly-server-side-streaming-api-openapi.yml

GENERATED

Launchdarkly Status Api Phrasing Overlay

2 actions · phrasing · launchdarkly-status-api-openapi.yml

GENERATED

Launchdarkly Tags Api Phrasing Overlay

2 actions · phrasing · launchdarkly-tags-api-openapi.yml

GENERATED

Launchdarkly Teams Api Phrasing Overlay

3 actions · phrasing · launchdarkly-teams-api-openapi.yml

GENERATED

Launchdarkly Webhooks Api Phrasing Overlay

6 actions · phrasing · launchdarkly-webhooks-api-openapi.yml

GENERATED

Launchdarkly Workflows Api Phrasing Overlay

2 actions · phrasing · launchdarkly-workflows-api-openapi.yml

GENERATED

Scroll for all 29

JSON Schema 70

Standalone JSON Schema definitions for this provider's data models.

AccessToken

10 properties

JSON SCHEMA

AccessTokenBody

5 properties

JSON SCHEMA

AccessTokens

2 properties

JSON SCHEMA

ApprovalRequest

6 properties

JSON SCHEMA

ApprovalRequestBody

4 properties

JSON SCHEMA

ApprovalRequests

2 properties

JSON SCHEMA

AuditLogEntries

2 properties

JSON SCHEMA

AuditLogEntry

9 properties

JSON SCHEMA

Clause

5 properties

JSON SCHEMA

CodeReferenceRepositories

1 properties

JSON SCHEMA

CustomRole

6 properties

JSON SCHEMA

CustomRoleBody

4 properties

JSON SCHEMA

CustomRoles

2 properties

JSON SCHEMA

Environment

10 properties

JSON SCHEMA

EnvironmentBody

6 properties

JSON SCHEMA

Environments

3 properties

JSON SCHEMA

EnvironmentStatus

8 properties

JSON SCHEMA

EvaluationContext

4 properties

JSON SCHEMA

Experiment

7 properties

JSON SCHEMA

ExperimentBody

4 properties

JSON SCHEMA

Experiments

3 properties

JSON SCHEMA

LaunchDarkly Feature Flag

14 properties

JSON SCHEMA

FeatureFlag

12 properties

JSON SCHEMA

FeatureFlagBody

8 properties

JSON SCHEMA

FeatureFlags

3 properties

JSON SCHEMA

FlagData

2 properties

JSON SCHEMA

FlagEnvironment

10 properties

JSON SCHEMA

FlagEvaluation

6 properties

JSON SCHEMA

FlagEvaluations

0 properties

JSON SCHEMA

FlagTrigger

6 properties

JSON SCHEMA

FlagTriggerBody

2 properties

JSON SCHEMA

FlagTriggers

2 properties

JSON SCHEMA

IntegrationSubscriptions

1 properties

JSON SCHEMA

Links

1 properties

JSON SCHEMA

Member

8 properties

JSON SCHEMA

MemberInviteBody

3 properties

JSON SCHEMA

Members

3 properties

JSON SCHEMA

MemberSummary

5 properties

JSON SCHEMA

Metric

8 properties

JSON SCHEMA

MetricBody

7 properties

JSON SCHEMA

Metrics

2 properties

JSON SCHEMA

PatchOperation

2 properties

JSON SCHEMA

Project

6 properties

JSON SCHEMA

ProjectBody

4 properties

JSON SCHEMA

Projects

3 properties

JSON SCHEMA

RelayProxyConfig

8 properties

JSON SCHEMA

RelayProxyConfigBody

2 properties

JSON SCHEMA

RelayProxyConfigs

1 properties

JSON SCHEMA

RelayProxyStatus

3 properties

JSON SCHEMA

ReleasePipeline

5 properties

JSON SCHEMA

ReleasePipelineBody

4 properties

JSON SCHEMA

ReleasePipelines

1 properties

JSON SCHEMA

Rollout

3 properties

JSON SCHEMA

Rule

5 properties

JSON SCHEMA

Segment

10 properties

JSON SCHEMA

SegmentBody

4 properties

JSON SCHEMA

SegmentRule

4 properties

JSON SCHEMA

Segments

3 properties

JSON SCHEMA

Statement

5 properties

JSON SCHEMA

TagCollection

2 properties

JSON SCHEMA

Target

3 properties

JSON SCHEMA

Team

7 properties

JSON SCHEMA

TeamBody

5 properties

JSON SCHEMA

Teams

3 properties

JSON SCHEMA

Variation

4 properties

JSON SCHEMA

LaunchDarkly Webhook Event

13 properties

JSON SCHEMA

Webhook

8 properties

JSON SCHEMA

WebhookBody

6 properties

JSON SCHEMA

Webhooks

2 properties

JSON SCHEMA

Workflows

1 properties

JSON SCHEMA

Scroll for all 70

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Launchdarkly Structure

0 properties

JSON STRUCTURE

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Launchdarkly Authentication

apiKey/oauth2 · 3 schemes

SECURITY

Launchdarkly Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Launchdarkly Vulnerability Disclosure

Hackerone

SECURITY

Launchdarkly Trust Center

SOC 2, ISO 27001, HIPAA, FedRAMP, GDPR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Launchdarkly Scopes

4 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Launchdarkly Agentic Access

58 operations · 25 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox

DeveloperPortal

GettingStarted

SignUp

Documentation 6

Reference material describing how the API behaves

JSONSchema

JSONSchema

OpenAPI

AsyncAPI

Documentation

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

LLMsTxt

WellKnown

MCPServer

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

JSONLD

Conventions

Conformance

ErrorCatalog

Lifecycle

DataModel

Webhooks

Scroll for all 7

Build 6

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

ToolCrosswalk

SourceCode

Access & Security 7

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

Compliance

OAuthScopes

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Scroll for all 7

Operate 5

Status, limits, changes, and where to get help

StatusPage

Deprecation

ChangeLog

RateLimits

Support

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 4

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: launchdarkly
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - launchdarkly/ldcli
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
specificationVersion: '0.23'
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/launchdarkly.png
url: https://raw.githubusercontent.com/api-evangelist/launchdarkly/refs/heads/main/apis.yml
apis:
- aid: launchdarkly:webhooks-api
  name: LaunchDarkly Webhooks API
  tags:
  - Event
  - Integration
  - Notification
  - Webhook
  tags_raw:
  - Events
  - Integrations
  - Notifications
  - Webhooks
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://app.launchdarkly.com/api/v2
  humanURL: https://launchdarkly.com/docs/api/webhooks
  properties:
  - url: https://launchdarkly.com/docs/api/webhooks
    type: Documentation
  - type: AsyncAPI
    url: asyncapi/launchdarkly-webhooks-asyncapi.yml
  - type: Webhooks
    url: asyncapi/launchdarkly-webhooks-asyncapi.yml
  description: The LaunchDarkly Webhooks API allows developers to build custom integrations that subscribe to activity events
    within LaunchDarkly. When actions occur such as flag changes, project creation, or environment modifications, LaunchDarkly
    sends HTTP POST payloads to configured webhook URLs. This enables use cases like updating external issue trackers, notifying
    support systems of feature rollouts, and triggering downstream automation workflows based on feature flag lifecycle events.
- aid: launchdarkly:launchdarkly-access-tokens-api
  name: launchdarkly Access Tokens API
  description: Create and manage personal and service access tokens used to authenticate API requests.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Access Tokens
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-access-tokens-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-account-members-api
  name: launchdarkly Account Members API
  description: Manage team members, invitations, and member roles within a LaunchDarkly account.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Account Members
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-account-members-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-approvals-api
  name: launchdarkly Approvals API
  description: Manage approval requests and workflows for flag changes that require review before deployment.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Approvals
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-approvals-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-audit-log-api
  name: launchdarkly Audit Log API
  description: Access the change history of all modifications made to resources in the LaunchDarkly account.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Audit Logs
  tags_raw:
  - Audit Log
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-audit-log-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-client-side-evaluation-api
  name: launchdarkly Client-Side Evaluation API
  description: Flag evaluation endpoints for client-side and mobile SDKs using environment IDs or mobile keys for authentication.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Client-Side Evaluation
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-client-side-evaluation-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-client-side-streaming-api
  name: launchdarkly Client-Side Streaming API
  description: Server-Sent Events streaming endpoints for client-side and mobile SDKs to receive real-time flag updates.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Client-Side Streaming
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-client-side-streaming-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-code-references-api
  name: launchdarkly Code References API
  description: View code references that show where feature flags are used in your codebase.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Code References
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-code-references-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-custom-roles-api
  name: launchdarkly Custom Roles API
  description: Define custom roles with fine-grained permissions using resource specifiers and actions.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Custom Roles
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-custom-roles-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-environments-api
  name: launchdarkly Environments API
  description: Manage environments within projects such as production, staging, and development.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Environment
  tags_raw:
  - Environments
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-environments-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-experiments-api
  name: launchdarkly Experiments API
  description: Create and manage experiments to measure the impact of feature flag variations on metrics.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Experiments
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-experiments-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-feature-flags-api
  name: launchdarkly Feature Flags API
  description: Create, update, and manage feature flags and their targeting rules across projects and environments.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Feature Flags
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-feature-flags-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-flag-triggers-api
  name: launchdarkly Flag Triggers API
  description: Create triggers that allow external services to toggle feature flags via unique webhook URLs.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Flag Triggers
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-flag-triggers-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-integration-audit-log-subscriptions-api
  name: launchdarkly Integration Audit Log Subscriptions API
  description: Manage integrations that subscribe to audit log events and forward them to external tools.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Integration Audit Log Subscriptions
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-integration-audit-log-subscriptions-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-metrics-api
  name: launchdarkly Metrics API
  description: Define and manage metrics used to measure experiment outcomes and feature flag impact.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-metrics-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-php-polling-api
  name: launchdarkly PHP Polling API
  description: Polling endpoints for PHP server-side SDKs which do not support streaming mode.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - PHP Polling
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-php-polling-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-projects-api
  name: launchdarkly Projects API
  description: Manage projects that organize feature flags and other resources.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Project
  tags_raw:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-projects-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-relay-proxy-configurations-api
  name: launchdarkly Relay Proxy Configurations API
  description: Manage automatic configuration entries for LaunchDarkly Relay Proxy instances.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Relay Proxy Configurations
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-relay-proxy-configurations-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-releases-api
  name: launchdarkly Releases API
  description: Manage release pipelines for coordinating feature flag rollouts across environments.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Releases
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-releases-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-segments-api
  name: launchdarkly Segments API
  description: Create and manage user segments for targeting groups of contexts with feature flags.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Segments
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-segments-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-server-side-evaluation-api
  name: launchdarkly Server-Side Evaluation API
  description: Flag evaluation endpoints for server-side SDKs using SDK keys for authentication.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Server-Side Evaluation
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-server-side-evaluation-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-server-side-streaming-api
  name: launchdarkly Server-Side Streaming API
  description: Server-Sent Events streaming endpoints for server-side SDKs to receive real-time flag updates.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Server-Side Streaming
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-server-side-streaming-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-status-api
  name: launchdarkly Status API
  description: Health and status monitoring endpoints for the Relay Proxy. No authentication is required for these endpoints.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Status
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-status-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-tags-api
  name: launchdarkly Tags API
  description: The Tags API from launchdarkly — 1 operation(s) for tags.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Tags
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-tags-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-teams-api
  name: launchdarkly Teams API
  description: Organize account members into teams for collaborative flag management and permissions.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Team
  tags_raw:
  - Teams
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-teams-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-webhooks-api
  name: launchdarkly Webhooks API
  description: Configure webhooks to receive HTTP POST notifications when changes occur in LaunchDarkly.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-webhooks-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-workflows-api
  name: launchdarkly Workflows API
  description: Create and manage automated workflows for scheduling and orchestrating flag changes.
  humanURL: https://launchdarkly.com/docs/api
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Workflows
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-workflows-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/api
  - type: Documentation
    url: https://launchdarkly.com/docs/sdk/relay-proxy
- aid: launchdarkly:launchdarkly-mcp-server
  name: LaunchDarkly MCP Server
  description: LaunchDarkly operates a first-party hosted Model Context Protocol server at https://mcp.launchdarkly.com/mcp/launchdarkly,
    reachable by any MCP client over streamable HTTP and authorized with OAuth 2.0 (dynamic client registration, PKCE). It
    exposes 125 tools across feature management, AgentControl, experimentation, metrics and observability, each carrying MCP
    annotations that declare whether it is read-only, idempotent or destructive. A stdio server is also published to npm as
    @launchdarkly/mcp-server for the federal and EU instances, where the hosted server is not available.
  humanURL: https://launchdarkly.com/docs/home/getting-started/mcp
  baseURL: https://mcp.launchdarkly.com/mcp/launchdarkly
  tags:
  - MCP
  - AI Agents
  - Feature Flags
  - Tools
  properties:
  - type: MCPServer
    url: mcp/launchdarkly-mcp.yml
  - type: ToolCrosswalk
    url: mcp/launchdarkly-tool-crosswalk.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/home/getting-started/mcp
  - type: Documentation
    url: https://launchdarkly.com/docs/home/getting-started/mcp-hosted
  - type: Authentication
    url: authentication/launchdarkly-authentication.yml
  - type: OAuthScopes
    url: scopes/launchdarkly-scopes.yml
- aid: launchdarkly:launchdarkly-backup-api
  name: LaunchDarkly Backup API
  description: The Backup API from LaunchDarkly — 1 operation(s) for backup.
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Backup
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-backup-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/guides/flags/ldcli-dev-server-reference
  - type: Sandbox
    url: sandbox/launchdarkly-sandbox.yml
  - type: SourceCode
    url: https://github.com/launchdarkly/ldcli
- aid: launchdarkly:launchdarkly-debug-sessions-api
  name: LaunchDarkly Debug Sessions API
  description: The Debug Sessions API from LaunchDarkly — 3 operation(s) for debug sessions.
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Debug Sessions
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-debug-sessions-api-openapi.yml
  - type: Documentation
    url: https://launchdarkly.com/docs/guides/flags/ldcli-dev-server-reference
  - type: Sandbox
    url: sandbox/launchdarkly-sandbox.yml
  - type: SourceCode
    url: https://github.com/launchdarkly/ldcli
- aid: launchdarkly:launchdarkly-account-usage-beta-api
  name: LaunchDarkly Account usage (beta) API
  description: '> ### This feature is in beta

    >

    > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with
    each call. To learn more, read [Beta resources](https://launchdarkly.com/docs/api#beta-resources).

    >

    > Resources that are in beta are still undergoing testing and development. They may change without notice, including becoming
    backwards incompatible.


    The account usage API lets you query for metrics about how your account is using LaunchDarkly. To learn more, read [Account
    usage metrics](https://launchdarkly.com/docs/home/account/metrics).


    Each endpoint returns time-series data in the form of an array of data points with timestamps. Each one contains data
    for that time from one or more series. It also includes a metadata array describing what each of the series is.'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Account usage (beta)
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-account-usage-beta-api-openapi.yml
- aid: launchdarkly:launchdarkly-adaptive-triggers-api
  name: LaunchDarkly Adaptive triggers API
  description: 'Adaptive triggers automatically update the targeting of a feature flag or AgentControl config when a trigger
    source, such as an observability alert, fires. Each adaptive trigger pairs a trigger source with a task that describes
    the change to make, such as updating the variation served by the default rule or by a specific targeting rule.


    Using the adaptive triggers API, you can create, read, update, enable, disable, and delete adaptive triggers.'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Adaptive triggers
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-adaptive-triggers-api-openapi.yml
- aid: launchdarkly:launchdarkly-agentcontrol-api
  name: LaunchDarkly Agent Control API
  description: 'The AgentControl API allows you to create, retrieve, and edit AgentControl configs, config variations, and
    AI model configurations.


    **This product name has changed, but the API has not.** AgentControl was previously called AI Configs. Resources previously
    called "AI Configs" are now referred to as "AgentControl configs" or "configs." This is not a breaking change to the API.
    Existing AI Configs API endpoints, paths, request/response bodies, and operation IDs are unchanged. Integrations that
    use those resources still work and do not need modification.


    An AgentControl config is a resource in LaunchDarkly that you can use to customize, test, and roll out new large language
    models (LLMs) within your generative AI applications. Within each config, you define one or more variations, each of which
    includes a model configuration and one or more messages. The model configuration can be a standard one from the list provided
    by LaunchDarkly, or you can define your own custom AI model configuration.


    To learn more, read [AgentControl](https://launchdarkly.com/docs/home/agentcontrol).'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - AgentControl
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-agentcontrol-api-openapi.yml
- aid: launchdarkly:launchdarkly-announcements-api
  name: LaunchDarkly Announcements API
  description: 'The announcements API lets you create and update a custom announcement banner that appears in the LaunchDarkly
    user interface for everyone in your organization. You can use the banner to display organization-wide information, such
    as upcoming holidays, code freeze periods, or reminders on best practices. You can have one banner visible at a time.


    To learn more, read [Organization announcements](https://launchdarkly.com/docs/home/account/org-announcements).'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Announcements
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-announcements-api-openapi.yml
- aid: launchdarkly:launchdarkly-applications-beta-api
  name: LaunchDarkly Applications (beta) API
  description: '> ### This feature is in beta

    >

    > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with
    each call. To learn more, read [Beta resources](https://launchdarkly.com/docs/api#beta-resources).

    >

    > Resources that are in beta are still undergoing testing and development. They may change without notice, including becoming
    backwards incompatible.


    The applications API lets you create, update, delete, and search for applications and application versions.


    Each application includes information about the app you''re creating, and a set of versions of the app that you''ve released.
    You can use applications to target particular application versions in your feature flags more easily, and to handle unsupported
    application versions more gracefully.


    In addition to creating applications through the applications API, you can also create applications in the LaunchDarkly
    user interface. To learn more, read [Applications and application versions](https://launchdarkly.com/docs/home/releases/applications).
    LaunchDarkly also creates applications and application versions automatically when a LaunchDarkly SDK evaluates a feature
    flag for a context that includes application information. To learn more, read [Automatic environment attributes](https://launchdarkly.com/docs/sdk/features/environment-attributes).


    You can use an application in any project in your LaunchDarkly account.


    ### Filtering applications and application versions


    The `filter` parameter supports the following operators: `equals`, `notEquals`, `anyOf`, `startsWith`.


    You can also combine filters in the following ways:


    - Use a comma (`,`) as an AND operator

    - Use a vertical bar (`|`) as an OR operator

    - Use parentheses (`()`) to group filters


    #### Supported fields and operators


    You can only filter certain fields in applications when using the `filter` parameter. Additionally, you can only filter
    some fields with certain operators.


    When you search for applications, the `filter` parameter supports the following fields and operators:


    |<div style="width:120px">Field</div> |Description |Supported operators |

    |---|---|---|

    |`key` | The application or application version key, a unique identifier |`equals`, `notEquals`, `anyOf` |

    |`name` | The application name or application version name |`equals`, `notEquals`, `anyOf`, `startsWith` |

    |`autoAdded` | Whether the application or application version was automatically created because it was included in a context
    when a LaunchDarkly SDK evaluated a feature flag, or was created through the LaunchDarkly UI or REST API |`equals`, `notEquals`
    |

    |`kind` | The application kind, one of `mobile`, `server`, `browser`. Only available for [Get applications](https://launchdarkly.com/docs/api/applications-beta/get-applications).
    |`equals`, `notEquals`, `anyOf` |

    |`supported` | Whether a mobile application version is supported or unsupported. Only available for [Get application versions
    by application key](https://launchdarkly.com/docs/api/applications-beta/get-application-versions).|`equals`, `notEquals`
    |


    For example, the filter `?filter=kind anyOf ["mobile", "server"]` matches applications whose `kind` is either `mobile`
    or `server`. The filter is not case-sensitive.


    The documented values for `filter` query parameters are prior to URL encoding. For example, the `[` in `?filter=kind anyOf
    ["mobile", "server"]` must be encoded to `%5B`.


    ### Sorting applications and application versions


    LaunchDarkly supports the following fields for sorting:

    - `name` sorts by application name.

    - `creationDate` sorts by the creation date of the application.


    By default, the sort is in ascending order. Use `-` to sort in descending order. For example, `?sort=name` sorts the response
    by application name in ascending order, and `?sort=-name` sorts in descending order.'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Applications (beta)
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-applications-beta-api-openapi.yml
- aid: launchdarkly:launchdarkly-approvals-beta-api
  name: LaunchDarkly Approvals (beta) API
  description: '> ### This feature is in beta

    >

    > To use this feature, pass in a header including the `LD-API-Version` key with value set to `beta`. Use this header with
    each call. To learn more, read [Beta resources](https://launchdarkly.com/docs/api#beta-resources).

    >

    > Resources that are in beta are still undergoing testing and development. They may change without notice, including becoming
    backwards incompatible.'
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Approvals (Beta)
  tags_raw:
  - Approvals (beta)
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-approvals-beta-api-openapi.yml
- aid: launchdarkly:launchdarkly-context-settings-api
  name: LaunchDarkly Context settings API
  description: You can use the context settings API to assign a context to a specific variation for any feature flag. To learn
    more, read [View and manage contexts](https://launchdarkly.com/docs/home/observability/context-attributes#view-and-manage-contexts).
  humanURL: https://launchdarkly.com/docs/api/webhooks
  baseURL: https://app.launchdarkly.com/api/v2
  tags:
  - Context settings
  properties:
  - type: OpenAPI
    url: openapi/launchdarkly-context-settings-api-openapi.yml


# --- truncated at 32 KB (83 KB total) ---
# Full source: https://artifacts.apis.io/launchdarkly/apis.yml

LaunchDarkly API — frequently asked questions

Does LaunchDarkly have an API?

Yes. APIs.io lists 68 APIs from LaunchDarkly, including LaunchDarkly Webhooks API, launchdarkly Access Tokens API and launchdarkly Account Members API, and 65 more.

Is there an OpenAPI specification for the LaunchDarkly API?

Yes. APIs.io indexes 66 OpenAPI specifications for LaunchDarkly, each linked for download from this page.

How do I authenticate with the LaunchDarkly API?

LaunchDarkly documents its authentication (apiKey/oauth2 · 3 schemes). The details are profiled on APIs.io as Launchdarkly Authentication.

How much does the LaunchDarkly API cost?

LaunchDarkly publishes its prices; its Developer plan is $0/ mo, forever as of 2026-10-28. APIs.io lists 4 pricing plans for LaunchDarkly, with each plan's price, limits and inclusions under Pricing on this page.

Does LaunchDarkly have an MCP server?

Yes. APIs.io lists 1 MCP server for LaunchDarkly: LaunchDarkly operates a first-party hosted MCP server covering feature management, AgentControl and observability, and also publishes a local stdio server for the federal and EU instances where the ho

Is the LaunchDarkly API ready for AI agents?

LaunchDarkly has a Kin Score of 85.5 out of 100 (exemplar) and an Agent Readiness score of 60.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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