SECfinAPI MCP Server

SEC filings hold every US public company's financials — but they're in XBRL, which is painful to parse. I built **SECfinAPI** to standardize them into clean JSON, and an **MCP server** so AI assistants can use them directly.

GitHub

Documentation

secfinapi-mcp

MCP server for SECfinAPI — standardized SEC EDGAR financial data (income statements, balance sheets, cash flow, 50+ ratios) as tools for Claude, Cursor, and other AI assistants.

Ask your AI assistant things like "What's Apple's revenue trend?" or "Compare MSFT and GOOGL operating margins" — it fetches the data live through SECfinAPI.

It runs locally on your machine and is a thin wrapper over the SECfinAPI REST API. No server to host, no extra cost.

Setup

Get an API key (free) at https://www.secfinapi.com.
Add the server to your AI assistant's MCP config.

Claude Desktop

Open Settings → Developer → Edit Config and add:

Once published to npm:

{
  "mcpServers": {
    "secfinapi": {
      "command": "npx",
      "args": ["-y", "secfinapi-mcp"],
      "env": { "SECFINAPI_KEY": "your-api-key-here" }
    }
  }
}

Running from source (before publishing):

{
  "mcpServers": {
    "secfinapi": {
      "command": "node",
      "args": ["C:/path/to/sec-financial-mcp/dist/index.js"],
      "env": { "SECFINAPI_KEY": "your-api-key-here" }
    }
  }
}

Restart Claude Desktop. The 6 tools below appear under the tools (🔌) menu.

Cursor / VS Code

Same config shape in the editor's MCP settings — command, args, and the SECFINAPI_KEY env var.

Tools

Tool	Returns
`get_company_info`	Company metadata + a link to its filings on SEC EDGAR
`get_income_statement`	Standardized income statement (with filing dates)
`get_balance_sheet`	Standardized balance sheet
`get_cash_flow`	Standardized cash flow statement
`get_metrics`	50+ financial ratios (ROE, ROIC, margins, growth…)
`list_companies`	List / search the available US public companies

Environment variables

Variable	Required	Default
`SECFINAPI_KEY`	yes	—
`SECFINAPI_BASE_URL`	no	the SECfinAPI production API

Run from source

npm install
npm run build
SECFINAPI_KEY=your-key node dist/index.js

Publishing (maintainer)

npm run build
npm publish

License

MIT