Featureflip

Feature flag platform with automated dead-flag cleanup (via a GitHub Action), flat pricing, and API-first, agent-native surfaces. Exposes a Management REST API and a high-performance Evaluation API, both with public OpenAPI contracts, plus SDKs for many languages.

Featureflip publishes 2 APIs on the APIs.io network: Management API and Evaluation API. Tagged areas include feature flags, feature management, feature flag cleanup, progressive delivery, and experimentation.

📡 Source on GitHub
15.8/100 emerging Agent 13/100 agent aware Full breakdown ↓
scored 2026-09-12 · rubric v0.22.0
3 APIs
feature flagsfeature managementfeature flag cleanupprogressive deliveryexperimentationfeature flags as codeOpenFeatureMCPdeveloper toolsDevOps/CI-CD

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-12 · rubric v0.22.0
Composite quality — 15.8/100 · emerging
Contract Quality 6.7 / 25
Developer Ergonomics 1.9 / 20
Access Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Contract Governance 0.0 / 12
Discoverability 7.2 / 10
Agent readiness — 13/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 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
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
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 github.com/api-evangelist/featureflip: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

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

Management API

Programmatic access to Featureflip — projects, environments, feature flags, variations, targeting, segments, and SDK keys. Bearer-token auth (ffp_ personal / ffs_ service tokens).

Evaluation API

High-performance feature flag evaluation service for SDKs, with client and SDK endpoints for evaluation, identify, streaming, flags, and events.

MCP Server (local)

Documentation for the @featureflip/mcp server, a local stdio process run via npx that calls the Management API on your behalf using a bearer token.

Source (apis.yml)

apis.yml Raw ↑ 
name: Featureflip
description: Feature flag platform with automated dead-flag cleanup (via a GitHub Action), flat pricing, and API-first, agent-native
  surfaces. Exposes a Management REST API and a high-performance Evaluation API, both with public OpenAPI contracts, plus
  SDKs for many languages.
url: https://raw.githubusercontent.com/api-evangelist/featureflip/refs/heads/main/apis.yml
created: '2026-09-12'
modified: '2026-09-12'
specificationVersion: '0.21'
tags:
- feature flags
- feature management
- feature flag cleanup
- progressive delivery
- experimentation
- feature flags as code
- OpenFeature
- MCP
- developer tools
- DevOps/CI-CD
apis:
- name: Management API
  description: Programmatic access to Featureflip — projects, environments, feature flags, variations, targeting, segments,
    and SDK keys. Bearer-token auth (ffp_ personal / ffs_ service tokens).
  humanURL: https://featureflip.io/docs/management-api/overview/
  baseURL: https://api.featureflip.io
  tags:
  - feature flags
  - feature management
  - feature flag cleanup
  - progressive delivery
  - experimentation
  - feature flags as code
  - OpenFeature
  - MCP
  - developer tools
  - DevOps/CI-CD
  properties:
  - type: OpenAPI
    url: https://featureflip.io/openapi/public-v1.json
  - type: Documentation
    url: https://featureflip.io/docs/management-api/reference/
  - type: Documentation
    url: https://featureflip.io/docs/management-api/authentication/
  - type: LLMsTxt
    url: https://featureflip.io/llms.txt
- name: Evaluation API
  description: High-performance feature flag evaluation service for SDKs, with client and SDK endpoints for evaluation, identify,
    streaming, flags, and events.
  humanURL: https://featureflip.io/docs/api/overview/
  baseURL: https://eval.featureflip.io
  tags:
  - feature flags
  - feature management
  - feature flag cleanup
  - progressive delivery
  - experimentation
  - feature flags as code
  - OpenFeature
  - MCP
  - developer tools
  - DevOps/CI-CD
  properties:
  - type: OpenAPI
    url: https://featureflip.io/openapi/evaluation-v1.json
  - type: Documentation
    url: https://featureflip.io/docs/api/reference/
- name: MCP Server (local)
  description: Documentation for the @featureflip/mcp server, a local stdio process run via npx that calls the Management
    API on your behalf using a bearer token.
  humanURL: https://featureflip.io/docs/integrations/mcp/
  baseURL: https://featureflip.io/docs/integrations/mcp/
  tags:
  - feature flags
  - feature management
  - feature flag cleanup
  - progressive delivery
  - experimentation
  - feature flags as code
  - OpenFeature
  - MCP
  - developer tools
  - DevOps/CI-CD
  properties:
  - type: Documentation
    url: https://featureflip.io/docs/integrations/mcp/
maintainers:
- FN: Featureflip
  url: https://featureflip.io/
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 97
  at: '2026-09-12T04:54:28.200Z'

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