API DOCS
The complete API
documentation platform
Create detailed, interactive API docs for developers and AI agents — or generate and update them automatically from OpenAPI and Swagger definition files
Features
Publish interactive
OpenAPI documentation
Create interactive, auto-updating API docs in seconds — then customize your docs site to match your brand
CUSTOMIZATION
Create API docs
that fit your product
Bring API and product knowledge together
customer stories
More than 150 million people use documentation built in GitBook to find the information they need every month
FAQs
What is API documentation?
API documentation explains how developers and coding agents can work with an API, including its endpoints, parameters, authentication, requests, and responses. Good API documentation combines structured reference information with the guidance users need to successfully integrate with a product.
Can GitBook generate API docs from OpenAPI or Swagger?
Yes. GitBook can import an OpenAPI or Swagger specification and use it to generate API reference content, reducing the amount of endpoint documentation teams need to maintain manually.
Generated API references automatically update when the original specification file changes.
Can GitBook automatically update API documentation
Yes. GitBook can keep your API reference synchronized with changes to your OpenAPI specification, reducing the need to manually update endpoint documentation.
Can developers test API endpoints in GitBook?
Yes. GitBook supports interactive API documentation so developers can explore and test endpoints directly from the published reference.
Can I combine API docs with guides and tutorials?
Yes. You can publish API reference content alongside conceptual guides, tutorials, product documentation, and other knowledge in the same GitBook site.
Why does API documentation matter for AI coding agents?
Coding agents need accurate information about endpoints, parameters, authentication, and expected behavior to build reliable integrations.
GitBook helps teams structure API knowledge, keep generated references synchronized with their API specification, and publish supporting guides alongside that reference material.
