OpenAPI Initiative

The OpenAPI Initiative is a Linux Foundation project that promotes the OpenAPI Specification for defining standard, language-agnostic interfaces to RESTful APIs. It provides governance, tooling ecosystem support, and community collaboration for the most widely adopted API description format.

OpenAPI Initiative publishes 1 API on the APIs.io network. Tagged areas include Linux Foundation, Specifications, and Standards.

OpenAPI Initiative’s developer surface includes documentation and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.4/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1

AccessFreemium

1 APIs

Linux FoundationSpecificationsStandards

Kin Score

Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1

Composite quality — 19.4/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.7 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.8 / 13

Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

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 7 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/openapi-initiative: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

OpenAPI Initiative API

API for accessing OpenAPI Initiative resources, specifications, and tooling ecosystem documentation for defining standard interfaces to RESTful APIs.

Pricing Plans 1

Published pricing tiers and plan structures.

Openapi Initiative Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Openapi Initiative Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

LinkedIn

Source (apis.yml)

aid: openapi-initiative
name: OpenAPI Initiative
description: The OpenAPI Initiative is a Linux Foundation project that promotes the OpenAPI Specification for defining standard,
  language-agnostic interfaces to RESTful APIs. It provides governance, tooling ecosystem support, and community collaboration
  for the most widely adopted API description format.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/openapi-initiative.png
tags:
- Linux Foundation
- Specifications
- Standards
created: '2026-03-16'
modified: '2026-04-28'
url: https://raw.githubusercontent.com/api-evangelist/openapi-initiative/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: openapi-initiative:openapi-initiative-api
  name: OpenAPI Initiative API
  description: API for accessing OpenAPI Initiative resources, specifications, and tooling ecosystem documentation for defining
    standard interfaces to RESTful APIs.
  humanURL: https://spec.openapis.org/
  tags:
  - Specifications
  properties:
  - type: Documentation
    url: https://spec.openapis.org/
common:
- type: DomainSecurity
  url: security/openapi-initiative-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/open-api-initiative
- type: Documentation
  name: OpenAPI Initiative Documentation
  description: Official documentation for OpenAPI Initiative.
  url: https://spec.openapis.org/
- type: GitHubOrg
  name: OpenAPI Initiative GitHub
  description: Source code and repositories for OpenAPI Initiative.
  url: https://github.com/OAI
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
- url: https://www.openapis.org/feed
  type: Blog