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

# Multi-Cloud Indexing & Environment Migration

* **Azure Blob Storage indexing**: full container, single file, and directory
* **Cloudflare R2 indexing** support
* **URL indexing** endpoint
* **Reranker support** for queries
* **Page numbers** returned in search results
* **Document deletion fixes** for grouped file sets
* **Environment migration endpoint**: promote collections from dev → prod without reindexing
* **Job failure count fixes** and atomic operations