Label documents, or find where each one starts
Authentication
Bearer authentication of the form Bearer <token>, where token is your auth token.
Path parameters
Query parameters
How many seconds to hold the request open waiting for the run to finish.
Finishing inside the window returns 200 with the full run; running past it returns 202 with a statusUrl to poll. Send 0 to skip waiting entirely and always get the 202.
Request
The classes to choose from, at least 2 and at most 50. Required unless you name a saved action that carries them.
One class is the catch-all. Supply one with id: "other", or one is injected for you and echoed back on the run — a closed set with no exit makes the model guess.
What one label covers. document (the default) answers once for the whole file and bills only the pages sent to the model; page answers per page, derives segments[] from where documents start, and bills every page.
Page mode only. A segment shorter than minPages (default 1) merges into its neighbour.
Free-form guidance applied on top of the class descriptions — how to treat continuation sheets, which class wins a tie.
The pages to consider, 1-based inclusive. Defaults to the first 750 pages, which is also the maximum — a wider range is a page_limit_exceeded error, never a silent truncation.
An input file, given one of two ways.
{ "url": "…", "name"?: "…", "processing"?: "…" }— fetched over http(s) for this run and purged with it.{ "id": "…" }— a file you already registered withPOST /v1/files, reusable across runs and never re-parsed.
Arbitrary JSON you attach to the run and get back on every read of it.
Use it to carry your own identifiers — an order number, a customer id — so a webhook or a polled run reconciles without a lookup table. Capped at 10 KB serialized.
Where to deliver this run’s events, given one of two ways.
{ "url": "…" }— a one-off https endpoint for this run only.{ "id": "whe_…" }— a saved endpoint fromPOST /v1/webhooks. Runs hold the reference, so pausing or re-pointing that endpoint applies to this run too.
Deliveries are at-least-once and signed — dedupe on eventId and verify against GET /v1/webhooks/jwks.json.
How long, in seconds, to keep this run and its files before purging them automatically.
The maximum is 604800 (7 days). The deadline comes back as expiresAt on every read of the run. Call POST /v1/runs/{id}/keep before then to clear the TTL and move the results into a space permanently.
E-signature runs are exempt — an envelope waits for its signers however long that takes.
Response
Where the run is in its life.
The last four are terminal.
Why the run failed. Present whenever status is failed, and only then.
code is the stable, snake_case reason (input_unavailable, parse_failed, …); message is the human-readable detail. Per-file and per-step failures are also reported in files[].error and, for a pipeline, steps[].error.
The labels. Present once status is processed.
In document mode classId, confidence and reasoning are the first document’s, and documents[] is authoritative for a multi-file run. In page mode pages[] is the raw per-page answer and segments[] is what POST /v1/split consumes.