13F Pro13F Pro

MCP connector

Use 13F Pro inside Claude and ChatGPT

Ask your AI about any stock, fund or insider, and get the answer from 13F Pro’s own data: SEC filings, 13F holdings, Form 4 insider trades, 13D stakes, Congress disclosures and our AI quality scores. Every answer links back to the page it came from.

Connector URL
https://api.13fpro.ai/mcp

What you can ask

  • “What is 13F Pro's quality score on Costco, and what happened to it this month?”

    Free plan

  • “Show me the ten highest-quality healthcare stocks right now.”

    Pro and Pro+

  • “What did Michael Burry's fund buy and sell last quarter?”

    Pro and Pro+

  • “What did famous investors buy most last quarter?”

    Pro and Pro+

  • “Have NVIDIA insiders been buying or selling?”

    Pro and Pro+

  • “Which activists filed new 13D stakes this month?”

    Pro and Pro+

  • “What has Nancy Pelosi traded recently?”

    Pro and Pro+

  • “How does Apple's revenue split by product and region?”

    Pro and Pro+

Set it up in a minute

Claude

claude.ai and the Claude desktop app. The Free Claude plan allows one custom connector.

  1. 1Open Settings → Connectors.
  2. 2Click Add custom connector, name it 13F Pro and paste https://api.13fpro.ai/mcp. Leave sign-in on Sign in now and the OAuth client on Register automatically.
  3. 3Click Add, then Connect, and sign in with your 13F Pro account.
  4. 4In a chat, turn 13F Pro on from the + menu under Connectors, then ask away.

ChatGPT

On the web, with a paid ChatGPT plan that offers developer mode. A workspace admin may need to allow it.

  1. 1Open Settings → Apps → Advanced settings and turn on Developer mode.
  2. 2Back in Apps, choose Create app, name it 13F Pro and paste https://api.13fpro.ai/mcp.
  3. 3Set authentication to OAuth, create it, and sign in with your 13F Pro account.
  4. 4In a new chat, pick 13F Pro from the tools menu and ask your question.

The menus in both apps move from time to time. If a label differs, look for connectors or apps in settings.

What each plan includes

Free
10 questions a day
Stock lookup: score, verdict, financials, track record and the last 30 days
Pro
100 questions a day
All 8 tools: rankings, fund holdings, famous investors, insiders, activist stakes, Congress and segments
Pro+
Unlimited*
All 8 tools

*Fair use: up to 2,000 questions a day. Limits reset at midnight US Eastern time.

Private and read-only

  • The connector can only look things up. It cannot change anything in your account or place any trade.
  • You sign in with your 13F Pro account. Claude and ChatGPT never see your password.
  • We never see your chats. We receive only the lookup itself, such as a ticker, and count it toward your daily questions.
  • Disconnect any time from the connector settings in Claude or ChatGPT.

Data from SEC EDGAR (public domain) and 13F Pro’s own analysis. Not investment advice.