Annif REST API

This is the API service of Annif. We provide an open REST-style API for automated subject indexing.

API documentation for v1

See the interactive Swagger/OpenAPI documentation.

You can also use the swagger.json file directly in OpenAPI compliant tools.

Usage policy

Usage of the API is currently unrestricted. API keys are not used. Please be gentle with our server! In future, we may require registration and API keys for heavy use.

The data returned by the API may be used for any purpose without restriction.

Legacy v0 API

The v0 API provided by the original Annif prototype is still available, though it will be phased out eventually.