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Captain RAG API

Captain is the highest-accuracy AI search API for unstructured data.
Just connect your cloud storage and ask away.

Quickstart

New to Captain? Start here to build your first collection.

API Reference

Complete reference for all Captain API endpoints with examples.

State-of-the-Art AI File Search API

  • Natural Language Search: Ask questions in plain English and get useful answers.
  • Cloud Storage Integration: Connect AWS S3 or GCS buckets and Captain processes and cleans files over a single API call.
  • Multi-Tenancy: Organize collections to scope different teams, folders, projects, etc.
  • High Accuracy & Scalability: Built from the ground up with precision front of mind. Our advanced NLP ingestion engine and novel hybrid search augmentations deliver the highest accuracy out-of-the-box.
Complex Docs, Images, and Sheets
Complex Docs, Images, and Sheets

Captain can search across very large documents, text-heavy or visual images, and multi-faceted spreadsheets.


Our automatic VLM, OCR, and Computer Vision processing pipelines unlock the ability to search tricky content with high accuracy and developer simplicity.

Getting Help

Ready to Start?

Captain RAG API

Fully-Managed and Highly Accurate RAG for S3, GCS, or Azure Blob