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Locus turns European clinical guidelines into a knowledge graph your application queries in one request, and which answers it with its sources. One public surface: the REST API, under /v2. One engine behind it — the internal Sandbox, the evaluation harness and your application all take the same retrieval path, so what you measure is what you serve.

Capabilities

retrieve

A question in, a cited answer out — query maker, two-path retrieval (semantic ‖ concepts+graph), synthesis.

retrieve/stream

The same thing, streamed step by step as NDJSON: your UI shows real progress instead of inventing it.

drugs

The FULL text of an SmPC section a retrieval truncated, and a specialty’s SmPC loaded on demand.

feedback

A thumb up or down on an answer already served, attached to its trace.
The knowledge WRITE plane (PDF → graph: ingest, summarize, MKU extraction) is not exposed over HTTP. It is a batch pipeline driven by the locus CLI, which runs where the source PDFs are.