# API Blueprint

**Canonical:** https://apis.io/apis/specifications/api-blueprint/  
**Provider:** API Specifications — https://apis.io/providers/specifications/  
**Base URL:** https://github.com/apiaryio/api-blueprint  
**Documentation:** https://apiblueprint.org/

API Blueprint is one of 13 APIs that [API Specifications](https://apis.io/providers/specifications/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include API Blueprint, Markdown, Legacy, Historical, and Specification Language. The published artifact set on APIs.io includes API documentation and a GitHub repository.

API Blueprint is a Markdown-based specification language for describing web APIs, originally created by Apiary (acquired by Oracle). The spec is MIT licensed but development effectively stalled after Oracle's acquisition of Apiary; it is documented here for completeness as historical context for the API specification landscape.

## Machine-readable artifacts (6)

- **Documentation** — https://apiblueprint.org/documentation/tutorial.html
- **Specification** — https://github.com/apiaryio/api-blueprint/blob/master/API%20Blueprint%20Specification.md
- **GitHubOrganization** — https://github.com/apiaryio
- **GitHubRepository** — https://github.com/apiaryio/api-blueprint
- **License** — https://opensource.org/license/mit
- **Examples** — https://raw.githubusercontent.com/api-evangelist/specifications/refs/heads/main/examples/api-blueprint-example.json

## Other API Specifications APIs (12)

- [OpenAPI Specification (OAS)](https://apis.io/apis/specifications/openapi/)
- [AsyncAPI Specification](https://apis.io/apis/specifications/asyncapi/)
- [JSON Schema](https://apis.io/apis/specifications/json-schema/)
- [JSON Structure](https://apis.io/apis/specifications/json-structure/)
- [GraphQL SDL](https://apis.io/apis/specifications/graphql/)
- [gRPC and Protocol Buffers](https://apis.io/apis/specifications/grpc-protobuf/)
- [Smithy](https://apis.io/apis/specifications/smithy/)
- [TypeSpec](https://apis.io/apis/specifications/typespec/)
- [RAML (RESTful API Modeling Language)](https://apis.io/apis/specifications/raml/)
- [WSDL / SOAP](https://apis.io/apis/specifications/wsdl-soap/)
- [JSON-RPC 2.0](https://apis.io/apis/specifications/json-rpc/)
- [Tinybird API Spec](https://apis.io/apis/specifications/tinybird/)

## Tags

API Blueprint, Markdown, Legacy, Historical, Specification Language

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