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The published specification is **version 2026.10.17-1**.

Fill FHIR R4 Questionnaires, or answer free-form questions, from clinical documents.

Jobs are asynchronous: submit with `POST /v1/jobs`, then poll `GET /v1/jobs/{id}` or receive the
`job.finished` webhook, then fetch the result **once** with `GET /v1/jobs/{id}/result`. Nothing is
kept beyond 24 hours. Authenticate with `Authorization: Bearer <API key or OAuth access token>`;
keys need the `formfill:process` scope. Every error has the body
`{"error": {"code", "message", "request_id"}}`.