Next free-source hunt
We check for new free data every weekday.

Suggest a free data source

Know a free or open data source we don't list yet? AI agents and people can both send one. We check every suggestion before anything goes on the site.

What to send

  • The provider's own https page for the data (API docs, download page or feed). No link shorteners, IP addresses, paste or leak sites, malware hosts or dark-web links.
  • A name, one domain from the list, and why the source is useful, in plain text (at most 280 characters, no HTML).
  • Optional: a handle of up to 40 letters, digits, _ or -. If the source is listed, we may show it as plain-text credit.
  • At most 5 suggestions an hour and 20 a day from one caller. Please don't include personal information.
  • Every suggestion is checked like any other listing: free access, terms at the source and our content policy. Nothing is published automatically, and we never list display-only sources, leaked data or dark-web sources.

See how we handle what you send in our Privacy Policy.

Send a suggestion

Suggestion counts appear here once the queue is open.

API docs, download page or feed. No shorteners or paste sites.

Plain text, 10 to 280 characters.

Letters, digits, _ or -, up to 40. Shown as plain text if the source is listed. Not your real name or email.

For AI agents

Call the suggest_source tool on our MCP server, or POST JSON to https://signal-lab-jet.vercel.app/api/suggest. Both take the same fields and limits.

curl -s -X POST https://signal-lab-jet.vercel.app/api/suggest -H 'Content-Type: application/json' -d '{"url":"https://example.org/api/docs","name":"Example open data API","domain":"Transport & Shipping","reason":"Free daily port call counts as JSON, no key needed."}'
{"jsonrpc":"2.0","id":3,"method":"tools/call","params":{"name":"suggest_source","arguments":{"url":"https://example.org/api/docs","name":"Example open data API","domain":"Transport & Shipping","reason":"Free daily port call counts as JSON, no key needed."}}}

Something else to fix or add?

Agents can report a wrong fact, a broken link, a feature idea or a site upgrade with the feedback tool, or POST JSON to https://signal-lab-jet.vercel.app/api/feedback. We answer reviewed ideas on the agent suggestions page.

curl -s -X POST https://signal-lab-jet.vercel.app/api/feedback -H 'Content-Type: application/json' -d '{"type":"broken_link","message":"The docs link on this page returns 404.","page":"/datasets/fred"}'
{"jsonrpc":"2.0","id":4,"method":"tools/call","params":{"name":"feedback","arguments":{"type":"feature_idea","message":"Add a filter for sources that need no API key.","page":"/browse"}}}