APIs.guru
Central repository of OpenAPI and Swagger specs for public web APIs.
Read docs Updated 2026-06-17
What is APIs.guru?
APIs.guru is a directory that collects and hosts OpenAPI and Swagger specification files for public web APIs.
It is used by developers and tools that need machine-readable API descriptions for discovery, documentation, or client generation.
What you can build with APIs.guru
Discover and integrate public APIs
Search the directory for OpenAPI specs of services like GitHub or Twitter to quickly locate endpoints and data models before writing integration code.
Generate client libraries
Download a spec and feed it into code generators such as openapi-generator to produce SDKs in languages like Python, Java, or JavaScript.
Build API comparison tools
Aggregate multiple specs from the directory to analyze feature parity, rate limits, and schema differences across similar services.
Get started with APIs.guru
- 1Browse or search the APIs.guru directory at apis.guru
- 2Locate the desired API and view its OpenAPI definition
- 3Download the JSON or YAML specification file
- 4Import the file into tools like Swagger UI or code generators
- 5Reference the schema while building requests and handling responses
APIs.guru: pros & cons
Pros
- +Free access with no authentication required
- +Large curated collection of real-world OpenAPI specs
- +Standardized machine-readable format for automation
- +HTTPS-only delivery for secure retrieval
Cons
- –Only covers APIs that have been submitted and maintained
- –Specification versions and accuracy depend on community updates
- –No built-in testing or live API proxy features
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Frequently asked questions
A community-driven directory that collects and hosts OpenAPI/Swagger definitions for publicly available web APIs.
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