Mcp
Query SEC 13F institutional holdings, peer managers, and sector flows inside Claude Code or Cursor while researching markets or fintech ideas.
Overview
com.the13f/mcp is a MCP server for the Idea phase that lets agents query institutional 13F holdings, peers, and sector flows via The13F’s API.
What is this MCP server?
- Coverage of 8,600+ institutional managers with holdings and peer search
- Sector flow and institutional intelligence tools over streamable stdio via uvx/PyPI (the13f-mcp)
- Free pf13f_ API key: 100 calls/day, no card; structured signup prompt if missing
- Configurable THE13F_API_BASE_URL and THE13F_MCP_TIMEOUT (default 30s, min 5s)
- 8,600+ institutional managers in catalog messaging
- 100 API calls per day on free tier
- Server version 0.1.3; default HTTP timeout 30 seconds
What problem does it solve?
You need institutional ownership and flow context while coding, but jumping between EDGAR, spreadsheets, and your agent breaks momentum.
Who is it for?
Indie builders researching fintech niches, competitive fund positioning, or content grounded in real 13F data.
Skip if: Teams needing unlimited historical bulk export, live execution, or compliance-grade research without their own data contracts.
What do I get? / Deliverables
Your agent can answer manager, holding, and sector-flow questions in-thread using live 13F intelligence within the free daily quota.
- In-agent answers on managers, holdings, peers, and sector flows from The13F
- Structured free-signup responses when API key is absent
- Configurable dev targeting via THE13F_API_BASE_URL
Recommended MCP Servers
Journey fit
Canonical shelf is early journey research when solo builders validate who owns what in public markets before building trading, wealth, or B2B fintech products. 13F manager search, holdings, and sector flow tools map directly to opportunity and competitive landscape research, not shipping or ops.
How it compares
Finance data MCP over The13F’s API, not a backtesting library or brokerage integration.
Common Questions / FAQ
Who is com.the13f/mcp for?
Solo builders and agent users who want institutional 13F holdings and peer context inside Claude Code, Cursor, or other MCP clients during market and product research.
When should I use com.the13f/mcp?
Use it in the Idea research phase when validating fintech angles, analyzing who owns a symbol, or comparing managers before you commit to a build.
How do I add com.the13f/mcp to my agent?
Install the13f-mcp from PyPI, run via uvx with stdio transport, set THE13F_API_KEY from the13f.com/developers, and register the server in your MCP config.