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

# MCP server catches up with the API

* **12 new tools on the hosted MCP server**, 64 in total: read a document or a single page, mint viewable URLs for figures, set or merge document metadata, list and roll back jobs, read or delete a job's PII report, validate a parsing script, create a Google Cloud Storage sync, and dry-run a sync's credentials before creating it.
* **Every indexing tool now takes the full request**: `custom_metadata`, `mask_pii`, `max_files`, `skip_existing`, `overwrite_existing`, `transcription_language`, and `parsing_script`. R2 takes the bucket's `jurisdiction`, including `us`; S3 accepts a cross-account role; YouTube takes `mode` (transcript, audio, or video).
* **Search**: `captain_search_v3` takes `max_chunks_per_document`; `captain_search` takes a metadata filter, semantic ratio, and rerank options, and returns `query_id` and `chunk_id` so results feed the query-history and chunk tools.
* **Job status** shows credits billed, per-file results with paging, YouTube fallbacks, and the PII report state. Details on [MCP Server](/guides/mcp).

Same day: [Improved MCP Server](/changelog/2026-09-11-sign-in-to-the-mcp-server)