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Captain

Indexes files from cloud storage and answers queries with sub-second retrieval optimized for AI agents.

Developer toolsAPIRAGFor developers
captain.dev ↗XLinkedInGitHubLaunched on Product Hunt · 2025-07-23
At a glanceswept 2026-10-13

≈ 3visits/mo

Emerging · estimate, read 2026-09-21

  • Captain3
  • #1 Microsoft135M
  • Developer tools median25
For
AI agents and developers building retrieval systems that need accurate file search.
Price
Free plan · From $0.01 per usepricing page, read 2026-09-21 ↗
Activity
Actively maintainedrelease 9 days ago · site updated yesterday
Company
Domain since 2025domain registered
Runs as
API
AlternativesSet it up for my teamIs Captain yours? Claim the card →
What people do with itread off captain.dev on 2026-09-21
  • Search through documents and files with semantic queries
  • Index multimodal content including text, images, audio, and video
  • Tune retrieval accuracy using evaluation loops on your own data
The companyeach fact with its source · read 2026-09-24
  • Domain since2025domain registered
Your datawhat they publish, each line with its page · read 2026-10-08

“Customer data is never used to build, fine-tune or evaluate a shared model, and it is never pooled with another customer's corpus.”

security page ↗

These are Captain's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Developer tools tools →

Questions this page answers
  • What is Captain?

    Indexes files from cloud storage and answers queries with sub-second retrieval optimized for AI agents. It is listed in the Atlas under Developer tools.

  • Who is Captain for?

    AI agents and developers building retrieval systems that need accurate file search.

  • How much does Captain cost?

    Captain has a free plan; paid plans start at $0.01 per use, per its pricing page on 2026-09-21.

  • Is Captain free?

    Yes, Captain has a free plan, per its pricing page on 2026-09-21.

  • Do people use Captain?

    Emerging: ≈ 3 visits/mo · estimate, 2026-09.

  • Is Captain still maintained?

    Actively maintained: release 9 days ago · site updated yesterday.

  • Does Captain train AI on your data?

    No, per its security page (2026-10-08): “Customer data is never used to build, fine-tune or evaluate a shared model, and it is never pooled with another customer's corpus.”

  • Is Captain safe?

    We do not audit vendors. What Captain publishes, read 2026-10-08: SOC 2 Type II, HIPAA, GDPR stated on its security page; on training with your data, “Customer data is never used to build, fine-tune or evaluate a shared model, and it is never pooled with another customer's corpus.”.

  • Is Captain HIPAA compliant?

    Captain states HIPAA compliance on its security page (2026-10-08). We have not verified it.

  • What are alternatives to Captain?

    In Developer tools, by use: The Content Repurpose Revolution, GlobalGPT, Airbyte, WarpGrep, Sourcegraph, Tavily.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.