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Nonprofit Explorer Mcp Server

io.github.cyanheads/nonprofit-explorer-mcp-server · v0.3.0

MCP server for nonprofit financials via ProPublica: IRS Form 990 data for 1.8M+ nonprofits.

Connect Remote server

Terminal
claude mcp add --transport http nonprofit-explorer-mcp-server https://nonprofit-explorer.caseyjhand.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "nonprofit-explorer-mcp-server": {
      "url": "https://nonprofit-explorer.caseyjhand.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "nonprofit-explorer-mcp-server": {
      "type": "http",
      "url": "https://nonprofit-explorer.caseyjhand.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://nonprofit-explorer.caseyjhand.com/mcp

Tools 3 found in our last check

  • nonprofit_search_organizations

    Search 1.8M+ IRS-recognized tax-exempt organizations by name, keyword, city, or phrase. Optionally narrow by US state, NTEE major sector (1–10), or 501(c) subsection type. Returns EINs — pass them to nonprofit_get_organization or nonprofit_get_filings for details. Results are pa…

  • nonprofit_get_organization

    Full profile for a tax-exempt org by EIN: legal identity, IRS classification and BMF filing requirements, latest extracted financial snapshot, and latest return metadata across extracted and PDF-only histories. Use nonprofit_search_organizations first to resolve a name to an EIN…

  • nonprofit_get_filings

    Form 990 history by EIN with extracted financials, form-specific compensation, and PDF-only returns. Optional inclusive from_year/to_year bounds select fiscal years across both histories; omitted bounds return full history. Unfiltered totals remain available. Records are sorted…

Details

Endpointhttps://nonprofit-explorer.caseyjhand.com/mcp (Streamable HTTP)
Package@cyanheads/[email protected] (NPM, stdio)
Package@cyanheads/[email protected] (NPM, streamable-http)
First published3 Nov 2026
Last updated3 Nov 2026
Registry nameio.github.cyanheads/nonprofit-explorer-mcp-server

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