Release

Release is a developer-tools platform that provisions on-demand, full-stack ephemeral environments inside your own AWS or GCP cloud accounts. Positioned as a Heroku replacement and a Vercel alternative for full-stack apps, Release turns a repository plus a .release.yaml (or Docker Compose) file into reproducible environments spun up per pull request, per branch, or on demand, with managed Kubernetes clusters, datasets, remote development, and a Release.ai AI sandbox. Teams automate it through a REST Platform API (accounts, apps, environments, deploys, clusters, builds), a GraphQL API, an AI Sandbox API, and a first-party CLI, all authenticated with X-User-Email and X-User-Token headers and described by a canonical OpenAPI contract at https://api.release.com/openapi.json.

Release publishes 9 API contracts indexed on the APIs.io network, including Accounts API, Apps API, Builds API, and 6 more. Tagged areas include Company, Developer Tools, Ephemeral Environments, Platform Engineering, and Deployment.

The Release catalog on APIs.io includes 1 Spectral governance ruleset.

Release’s developer surface includes authentication, documentation, API reference, getting-started guide, support, engineering blog, pricing, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

59.8/100 strong ▬ flat Agent 24/100 agent aware Front door AI 4/6 moderate Heartbeat 95/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

1 published contract 3 Agent Skills

Company Developer Tools Ephemeral Environments Platform Engineering Deployment KubernetesEnvironments as a ServiceDevOps CI/CDAI Sandbox

What this lets a business do 2

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

Software Release & Deployment Management

BC-4210

BuildsConfigsDeploysEnvironmentsRemote Development

PUT /apps/{app_id}/spaces/{id}/extend_expiration POST /apps/{app_id}/spaces/{id}/pause GET /apps/{app_id}/builds/{id}/log POST /apps/{app_id}/builds/{id}/rebuild

Information Technology Management

BC-600

Clusters

GET /accounts/{account_id}/clusters/{id}/kubeconfig POST /accounts/{account_id}/clusters/{id}/upgrade GET /accounts/{account_id}/clusters POST /accounts/{account_id}/clusters

Kin Score

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

Composite quality — 59.8/100 · strong

Contract Quality 10.3 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 11.3 / 15

Operational Transparency 2.8 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 55.1 — up to +11.2 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Operational Transparency scores 28.9 — up to +9.2 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/release/apis.yml: open an issue on github.com/api-evangelist/release 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 →

Standards implemented 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 9

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

Release Accounts API

The Accounts API from Release — 11 operation(s) for accounts.

Release Apps API

The Apps API from Release — 8 operation(s) for apps.

Release Builds API

The Builds API from Release — 5 operation(s) for builds.

Release Clusters API

The Clusters API from Release — 10 operation(s) for clusters.

Release Configs API

The Configs API from Release — 9 operation(s) for configs.

Release Deploys API

The Deploys API from Release — 5 operation(s) for deploys.

Release Environments API

The Environments API from Release — 6 operation(s) for environments.

Release Instances API

The Instances API from Release — 2 operation(s) for instances.

Release Remote Development API

The Remote Development API from Release — 2 operation(s) for remote development.

Scroll for all 9

Open Collections 9

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

Release.com Platform Accounts API

OPEN COLLECTION

Release.com Platform Accounts Apps API

OPEN COLLECTION

Release.com Platform Accounts Builds API

OPEN COLLECTION

Release.com Platform Accounts Clusters API

OPEN COLLECTION

Release.com Platform Accounts Configs API

OPEN COLLECTION

Release.com Platform Accounts Deploys API

OPEN COLLECTION

Release.com Platform Accounts Environments API

OPEN COLLECTION

Release.com Platform Accounts Instances API

OPEN COLLECTION

Release.com Platform Accounts Remote Development API

OPEN COLLECTION

Scroll for all 9

Agent Skills 3

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

Trigger a build and monitor a deploy

AGENT SKILL

Create an app and spin up an ephemeral environment

AGENT SKILL

Pause, resume, extend, and tear down an environment

AGENT SKILL

Release API pricing

Prices published by Release, read 2026-10-28 from web.release.com/pricing.

Plan	Price
Enterprise - Runs in your cloud	Pricing varies Includes: Environments run in your own cloud, Enterprise SSO, 24/7 dedicated support, Dedicated Slack channel,

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Release Plans Pricing

1 plans

PLANS

Service Levels 1

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

Release

SLA

FinOps 1

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

Release Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Release API Rules

60 rules · 55 errors 4 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

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.

Release Openapi Overlay

3 actions · update · release-openapi-original.json

DERIVED

Security Posture 4

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

Release Authentication

apiKey · 2 schemes

SECURITY

Release Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Release Vulnerability Disclosure

no policy recorded

SECURITY

Release Trust Center

SOC 2

SECURITY

Agentic Access 1

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

Release Agentic Access

79 operations · 37 acting · 1 human-in-the-loop

79 operations · 37 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

WellKnown

WellKnown

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

CLI

CLI

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Security

Compliance

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Deprecation

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: release
name: Release
description: Release is a developer-tools platform that provisions on-demand, full-stack ephemeral environments inside your
  own AWS or GCP cloud accounts. Positioned as a Heroku replacement and a Vercel alternative for full-stack apps, Release
  turns a repository plus a .release.yaml (or Docker Compose) file into reproducible environments spun up per pull request,
  per branch, or on demand, with managed Kubernetes clusters, datasets, remote development, and a Release.ai AI sandbox. Teams
  automate it through a REST Platform API (accounts, apps, environments, deploys, clusters, builds), a GraphQL API, an AI
  Sandbox API, and a first-party CLI, all authenticated with X-User-Email and X-User-Token headers and described by a canonical
  OpenAPI contract at https://api.release.com/openapi.json.
url: https://raw.githubusercontent.com/api-evangelist/release/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- crv
x-tier: enriched
x-tier-reason: real-api-surface
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: gitbook
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Company
- Developer Tools
- Ephemeral Environments
- Platform Engineering
- Deployment
- Kubernetes
- Environments as a Service
- DevOps
- CI/CD
- AI Sandbox
apis:
- aid: release:release-accounts-api
  name: Release Accounts API
  description: The Accounts API from Release — 11 operation(s) for accounts.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/release-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-apps-api
  name: Release Apps API
  description: The Apps API from Release — 8 operation(s) for apps.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Application
  tags_raw:
  - Apps
  properties:
  - type: OpenAPI
    url: openapi/release-apps-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-builds-api
  name: Release Builds API
  description: The Builds API from Release — 5 operation(s) for builds.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Builds
  properties:
  - type: OpenAPI
    url: openapi/release-builds-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-clusters-api
  name: Release Clusters API
  description: The Clusters API from Release — 10 operation(s) for clusters.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Cluster
  tags_raw:
  - Clusters
  properties:
  - type: OpenAPI
    url: openapi/release-clusters-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-configs-api
  name: Release Configs API
  description: The Configs API from Release — 9 operation(s) for configs.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Configs
  properties:
  - type: OpenAPI
    url: openapi/release-configs-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-deploys-api
  name: Release Deploys API
  description: The Deploys API from Release — 5 operation(s) for deploys.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Deploys
  properties:
  - type: OpenAPI
    url: openapi/release-deploys-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-environments-api
  name: Release Environments API
  description: The Environments API from Release — 6 operation(s) for environments.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Environment
  tags_raw:
  - Environments
  properties:
  - type: OpenAPI
    url: openapi/release-environments-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-instances-api
  name: Release Instances API
  description: The Instances API from Release — 2 operation(s) for instances.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Instances
  properties:
  - type: OpenAPI
    url: openapi/release-instances-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
- aid: release:release-remote-development-api
  name: Release Remote Development API
  description: The Remote Development API from Release — 2 operation(s) for remote development.
  humanURL: https://docs.release.com/reference-documentation/release-api.md
  baseURL: https://api.release.com
  tags:
  - Remote Development
  properties:
  - type: OpenAPI
    url: openapi/release-remote-development-api-openapi.yml
  - type: Documentation
    url: https://docs.release.com/reference-documentation/release-api.md
  - type: APIReference
    url: https://docs.release.com/reference-documentation/release-api/platform-api.md
  - type: GraphQL
    url: https://docs.release.com/reference-documentation/release-api/graphql-api.md
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/release-plans-pricing.yml
- type: CapabilityMap
  url: capabilities/release-capability-edges.yml
  name: Release Business Capability Map
- type: Overlay
  url: overlays/release-openapi-overlay.yaml
- type: TrustCenter
  url: security/release-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/release-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/release-domain-security.yml
- type: AgenticAccess
  url: agentic-access/release-agentic-access.yml
- type: Authentication
  url: authentication/release-authentication.yml
- type: Website
  url: https://release.com/
- type: DeveloperPortal
  url: https://docs.release.com/
- type: Documentation
  url: https://docs.release.com/
- type: APIReference
  url: https://docs.release.com/reference-documentation/release-api.md
- type: GettingStarted
  url: https://docs.release.com/getting-started/quickstart.md
- type: Support
  url: mailto:hello@release.com
- type: Blog
  url: https://release.com/blog
- type: GitHubOrganization
  url: https://github.com/releasehub-com
- type: Pricing
  url: https://release.com/pricing
- type: Login
  url: https://web.release.com/
- type: TermsOfService
  url: https://release.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://release.com/legal/privacy-policy
- type: StatusPage
  url: https://status.release.com/
- type: Security
  url: https://release.com/legal/security
- type: Compliance
  url: https://release.com/legal/security
- type: LLMsTxt
  url: llms/release-llms.txt
- type: Packages
  url: packages/release-packages.yml
- type: CLI
  url: cli/release-cli.yml
- type: X-MCPServerCandidate
  url: mcp/release-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: WellKnown
  url: well-known/release-well-known.yml
- type: Conformance
  url: conformance/release-conformance.yml
- type: ErrorCatalog
  url: errors/release-problem-types.yml
- type: Lifecycle
  url: lifecycle/release-lifecycle.yml
- type: Deprecation
  url: https://docs.release.com/reference-documentation/release-api/environments-api.md
- type: Conventions
  url: conventions/release-conventions.yml
- type: DataModel
  url: data-model/release-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
image: https://release.com/og/og-image.png
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 16
  pass: local-v1

Release API — frequently asked questions

Does Release have an API?

Yes. APIs.io lists 9 APIs from Release, including Release Accounts API, Release Apps API and Release Builds API, and 6 more.

Is there an OpenAPI specification for the Release API?

Yes. APIs.io indexes 9 OpenAPI specifications for Release, each linked for download from this page.

How do I authenticate with the Release API?

Release uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Release Authentication.

How much does the Release API cost?

Release publishes its prices; its Enterprise - Runs in your cloud plan is Pricing varies as of 2026-10-28. APIs.io lists 1 pricing plan for Release, with each plan's price, limits and inclusions under Pricing on this page.

Is the Release API ready for AI agents?

Release has a Kin Score of 59.8 out of 100 (strong) and an Agent Readiness score of 24.3 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

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