> For a complete page index of the Captain API documentation, fetch https://docs.captain.dev/llms.txt?excludeSpec=true

# Documents & Layout

* **[v3 Get Document endpoint](/reference/v3/document)**: `GET /v3/collections/{name}/documents/{document_id}` returns a document's chunks, text, and per-chunk metadata
* **Opt-in regions**: pass `include_regions=true` on v3 get-document requests to get element-level layout and extracted region data for PDF/DOCX

Same day: [Odyssey Live Feeds & Webhook Alerts](/changelog/2026-05-01-odyssey-live-feeds-and-webhook-alerts), [Reliability & Operations](/changelog/2026-05-01-reliability-and-operations), [Video Transcripts](/changelog/2026-05-01-video-transcripts)