# APIs.json Specification

**Canonical:** https://apis.io/apis/apis-json/apis-json-specification/  
**Provider:** APIs.json — https://apis.io/providers/apis-json/  
**Documentation:** https://apisjson.org

APIs.json Specification is published by [APIs.json](https://apis.io/providers/apis-json/) on the [APIs.io](https://apis.io/) network. This API exposes 4 JSON Schema definitions. Tagged areas include API Description, API Discovery, API Operations, Machine-Readable, and Specification. The published artifact set on APIs.io includes API documentation and 4 JSON Schemas.

The APIs.json specification defines a machine-readable JSON or YAML format for describing API operations. Unlike OpenAPI which describes the technical interface of a single API, APIs.json describes the surrounding operations of one or more APIs — documentation, authentication, pricing, terms of service, support, and other properties. Created by Kin Lane and Steven Willmott in May 2014, the specification is maintained as an informal IETF draft at apisjson.org. The current stable version is 0.19, published November 6, 2024. APIs.json files are placed at the domain root as /apis.json or /apis.yml for automated discovery by robots and search engines.

## Machine-readable artifacts (7)

- **Documentation** — https://apisjson.org/schema/
- **Specification** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/spec/apisjson_0.19.txt
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/json-schema/apis-json-schema-0.19.yaml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/json-schema/apis-json-schema-0.18.yaml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/json-schema/apis-json-schema-0.17.yaml
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/json-schema/apis-json-schema-0.20.yaml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/apis-json/refs/heads/main/apis.yml

## Tags

API Description, API Discovery, API Operations, Machine-Readable, Specification, Standard

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/apis-json/apis-json-specification/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/apis-json/.