API Documentation

We offer a Swagger UI for documentation and direct interaction with our APIs. For more tips on how to use our API we recommend starting out with our API Authentication documentation.

WARNING: Swagger incorrectly displays NDJSON examples in JSON format. For endpoints that require NDJSON as input you must convert the JSON examples to NDJSON (e.g. by removing new lines) prior to testing.

By using our API you agree to our Data Use Terms .

Backend Server

Please note that Loculus is under continuous development and the endpoints are subject to change.
View Backend API Documentation

LAPIS Query Engines