name: APIs.json
description: The open source machine-readable format for describing API operations — a sitemap.xml for APIs that indexes OpenAPI specs, documentation, pricing, terms of service, and more, making APIs discoverable by APIs.io and other tools.
url: https://apisjson.org/apis.json
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
created: "2014-03-01"
modified: "2026-05-02"
specificationVersion: "0.24"
tags:
  - APIs.json
  - API Discovery
  - API Index
  - Machine-Readable APIs
  - API Catalog
  - OpenAPI
  - RFC 9727
maintainers:
  - FN: Kin Lane
    email: info@apievangelist.com
    url: https://kinlane.com
  - FN: Steve Willmott
    email: steve@3scale.net
apis:
  - name: APIs.json Specification
    description: The APIs.json 0.24 specification — a machine-readable YAML or JSON format for indexing API operations, including OpenAPI specs, documentation, pricing, support, and lifecycle resources.
    humanURL: https://apisjson.org
    baseURL: https://apisjson.org
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    tags:
      - Specification
      - APIs.json
      - API Discovery
      - API Catalog
    properties:
      - type: Documentation
        url: https://apisjson.org
      - type: Specification
        url: https://apisjson.org/format/apisjson_0.24.txt
      - type: JSONSchema
        url: https://apisjson.org/schema/apis.json
      - type: GitHubRepository
        url: https://github.com/apis-json/api-json

  - name: APIs.json Schema
    description: JSON Schema for validating APIs.json documents — covers all required and optional fields in the 0.24 specification.
    humanURL: https://apisjson.org/schema/
    baseURL: https://apisjson.org
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    tags:
      - JSON Schema
      - Validation
      - APIs.json
    properties:
      - type: Documentation
        url: https://apisjson.org/schema/
      - type: JSONSchema
        url: https://apisjson.org/schema/apis.json

  - name: APIs.json Properties
    description: Reference documentation for all reserved property types defined in the APIs.json specification — from OpenAPI and AsyncAPI to Pricing, TermsOfService, and the vocabulary promoted in 0.22 and 0.23.
    humanURL: https://apisjson.org/properties/
    baseURL: https://apisjson.org
    image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
    tags:
      - Properties
      - Reference
      - APIs.json
    properties:
      - type: Documentation
        url: https://apisjson.org/properties/

common:
  - type: Website
    url: https://apisjson.org
  - type: Blog
    url: https://apisjson.org/blog/
  - type: BlogFeed
    url: https://apisjson.org/atom.xml
  - type: About
    url: https://apisjson.org/about/
  - type: GitHubOrganization
    url: https://github.com/apis-json
  - type: GitHubRepository
    url: https://github.com/apis-json/api-json