Form4API MCP — SEC Form 4 Insider Trading

Form4API MCP Server

Wraps the Form4API REST service as an MCP server, giving any MCP-compatible AI assistant direct access to real-time US insider trading data from the SEC's EDGAR system.

Example prompts

Once configured, ask your AI assistant questions like:

• "What insider trades happened at NVDA this week, excluding 10b5-1 plan trades?"
• "Show me cluster buy signals from the last 7 days"
• "What is Tim Cook's CIK and how many times has he bought AAPL stock?"
• "Pull all open-market purchases over $500K at Tesla in 2026"
• "What has the CFO of Microsoft been doing with their shares this year?"
• "Check my Form4API usage and plan"

Tools (9)

Setup

1. Get a free API key at form4api.com/dashboard (1,000 requests/day, no credit card).

2. Add to your MCP client config (Claude Desktop, Cursor, Windsurf, Zed):

{
  "mcpServers": {
    "form4api": {
      "command": "npx",
      "args": ["-y", "form4api-mcp"],
      "env": {
        "FORM4API_KEY": "fapi_live_your_key_here"
      }
    }
  }
}

3. Restart your client. The 9 tools appear automatically.

Features

- Real-time data from SEC EDGAR (10-minute poll cycle)
- Amendment-aware — handles Form 4/A filings correctly (most competitors silently double-count)
- 10b5-1 plan detection — discretionary trades flagged separately from pre-scheduled plan trades
- Cluster signals — fires when 3+ insiders at the same company buy or sell within a 5-day window
- Plan-aware errors — Free users calling get_signals get a clear upgrade message, not a cryptic 402
- 100% public data — sourced from SEC EDGAR; zero proprietary data acquisition cost

Links

- npm: form4api-mcp (https://www.npmjs.com/package/form4api-mcp)
- Source: https://github.com/theodor90/form4api-mcp
- Free API key: https://form4api.com
- Docs: https://form4api.com/docs#mcp
- License: MIT