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U.S. Market Data
Built for AI Agents.

Give Your AI Access to the Financial World

One API key. One MCP Server. 60+ Financial & Government datasets. Connect Claude, ChatGPT, Cursor, or any of your favorite AIs and start querying SEC filings, insider trading, congressional trades, federal contracts, macroeconomic data, and much more in seconds.

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Powered by official U.S. government data
SEC EDGARU.S. Senate eFDHouse ClerkFECU.S. TreasuryUSAspendingCFTCOFACBLSFREDFDAGovInfoFederal RegisterHHS-OIGCFPBFARAUSPTO SEC EDGARU.S. Senate eFDHouse ClerkFECU.S. TreasuryUSAspendingCFTCOFACBLSFREDFDAGovInfoFederal RegisterHHS-OIGCFPBFARAUSPTO
—  S H O W C A S E  —

Create with KeyVex.

One Prompt. Real Data. Unlimited Possibilities.

Powered by official U.S. government data
SEC EDGARU.S. Senate eFDHouse ClerkFECU.S. TreasuryUSAspendingCFTCOFACBLSFREDFDAGovInfoFederal RegisterHHS-OIGCFPBFARAUSPTO SEC EDGARU.S. Senate eFDHouse ClerkFECU.S. TreasuryUSAspendingCFTCOFACBLSFREDFDAGovInfoFederal RegisterHHS-OIGCFPBFARAUSPTO
Pricing

Start for free.
Scale when your agents do.

7-day free trial on Pro. Cancel anytime.

Free

Get on the wire. Hit the endpoint, read the docs, feel out the data.

$0/ forever
No card needed
  • MCP + REST endpoint access
  • 60 calls / day
  • Most datasets, except market data and a few heavy ones
  • 1 year history
  • 100 MB of data / month
  • Personal use
Create free account
Basic

Every dataset, market data included, at a starter price.

$10/ month
Billed monthly
  • Everything in Free
  • 10,000 calls / day
  • Every dataset, including market data
  • 5 year history
  • 5 GB of data / month
  • Personal use
Get Basic
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Pro

For heavy personal use. Five times the calls and the full archive.

$30/ month
Billed monthly
  • Everything in Basic
  • 50,000 calls / day
  • Full historical archive
  • 15 GB of data / month
  • Personal use
Start 7-day free trial

Calls per day or data per month, whichever comes first. A very large response may count as more than one call. Fair-use server-time limits apply on every plan.

For your AI & developers

Point your AI at KeyVex. It does the rest.

KeyVex is also a plain REST API. Give an assistant your key plus the spec URL below and it can pull any of the 60+ datasets, congressional & insider trades, lobbying, federal contracts, SEC filings, economic indicators, and more.

Base URLhttps://api.keyvex.com
OpenAPI spechttps://api.keyvex.com/openapi.json
Authheader x-api-key: YOUR_KEY · get a free key
curl "https://api.keyvex.com/v1/congressional-trades?ticker=NVDA" \
  -H "x-api-key: YOUR_KEY"

A free key returns full-depth records with 1 year of history, 60 requests/day (Basic: 5 years · Pro and Business: full archive). Full endpoint list & parameters in the OpenAPI spec · REST API docs.

FAQ

Frequently asked questions

What is KeyVex?

KeyVex is a unified API and MCP server for US public financial and government disclosures. It spans congressional and insider trades, SEC filings, campaign finance, lobbying, federal contracts, sanctions, macro indicators, and more. 60+ datasets from official government sources, normalized into one schema and queryable by any AI agent or HTTP client.

Is KeyVex really free?

Yes. The public MCP endpoint at mcp.keyvex.com is open to everyone with no account and no API key, and serves two datasets there, congressional trades and SEC insider transactions, so you can try it before signing up. A free account is also free, and adds an API key with full-depth records across most public-record datasets, 60 calls a day, and one year of history. Market data and a few heavier datasets need a paid plan: unified search, FEC contributions and disbursements, federal contracts and grants, CFPB complaints, FDA adverse events, Open Payments, patents, fund holdings, money market funds, activist stakes, and Treasury auctions. Paid plans also raise the call quota and extend the history window.

Where does the data come from?

Directly from official US government sources, including SEC EDGAR, Senate eFD, the House Clerk, the FEC, the US Treasury, USAspending, CFTC, OFAC, BLS, FRED, FDA, GovInfo, and more. KeyVex normalizes and indexes the records; every record stays traceable to its source filing.

How fresh is the data?

Each source is re-polled on its own cadence: SEC Form 4 every 30 minutes, most SEC filings hourly, 13F every 4 hours, congressional trades and most other sources daily. Some agencies publish in batches, so the newest available record is bounded by the source's own release schedule. The full schedule is in the docs.

How do I connect Claude, ChatGPT, or Cursor?

Add https://mcp.keyvex.com as a custom connector (in Claude: Settings → Connectors) and start asking questions, with no sign-in needed, that endpoint answers on congressional trades and insider transactions. To reach the full catalogue, create a free account and use https://mcp.keyvex.com/pro with your key. Step-by-step guides for Claude, ChatGPT, Cursor, Windsurf, and VS Code are in the docs.

What's the difference between the MCP server and the REST API?

Same data, same 60+ tools. The MCP server is for AI clients, so your agent discovers and calls the tools natively. The REST API at api.keyvex.com is plain HTTP with an OpenAPI spec, for code, scripts, and dashboards. One API key works on both.

Does KeyVex give investment advice or trading signals?

No. KeyVex doesn't give investment, legal, tax, or compliance advice, signals, or recommendations. It gives you the tools to build your own personalized trading and research platform. Give your AI a KeyVex key, and it can build anything you can imagine.

Can I use KeyVex data in my product?

Yes, on the Business and Enterprise plans, which carry commercial use under a non-redistribution agreement. Free, Basic and Pro are licensed for personal, non-commercial use only; if you're querying on behalf of a business or managing other people's money, you need Business. On every plan, federal law restricts how campaign-finance (FEC) data and congressional and executive-branch financial disclosures may be used, including a ban on using them to solicit money and limits on commercial use. Stock prices, which we license from Tiingo, are for your own use only and may not be shown in your product. See Sections 6 and 6A of the Terms of Service.

What happens when I hit my daily limit?

The API returns HTTP 429 with a Retry-After header. Daily quotas reset at midnight Eastern; Basic, Pro and Business raise the daily cap.

Do I need a credit card to start?

No. The free tier needs no card, just an email or Google sign-in. Pro comes with a 7-day free trial. Basic and Business bill from day one. Every paid plan can be cancelled anytime.

Stock prices: Close Prices from Tiingo.com, updated every 30 minutes.