Open Collective
Open Collective

Wikipedia for Web APIs. Directory of REST API specs in OpenAPI(fka Swagger) format.



Transparent and open finances.

View all expenses  →
Invoice #91873
-$607.71 USD
Invoice #36880
↑ Total contributed

--.-- GBP

↓ Total received with expenses

£945.14 GBP


Our goal is to create a machine-readable Wikipedia for REST APIs with the following principals:

  • Open source, community driven project.
  • Only publicly available APIs (free or paid).
  • Anyone can add or change an API, not only API owners.
  • All data can be accessed through a REST API.

Although the project is still under the auspices of, it is now maintained by Mike Ralphson of Mermade Software. Check out our other OpenAPI-related projects. provide services and consultancy around GraphQL, OpenAPI/Swagger spec and APIs in general. You can contact us at [email protected]