4 tagged irs, measured the same way as everything else here.
MCP server Claude CodeCodexCursor +2
39 tax tools for US taxpayers: federal/state tax, credits, deductions, retirement. All local. Runs locally from the irs-taxpayer-mcp npm package.
jfortier93/verified-numbers-mcp
MCP server Claude CodeCodexCursor +2
Current source-cited 2026 US tax constants and calculators for AI agents; every answer cites IRS. Remote server at verified-numbers.mcpize.run.
MCP server Claude CodeCodexCursor +2
TaxSort — Tollbooth-monetized MCP server for personal tax transaction classification. Remote server at taxsort-mcp.fastmcp.app.
MCP server Claude CodeCodexCursor +2
MCP server for IRS Statistics of Income (SOI) data by ZIP code — income, AGI distribution, tax, credits, and deductions from filed returns. Runs locally from the mcpwright-soi Python package. Needs 1 environment variable to run.