Nonprofit Explorer MCP Server

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "nonprofit-explorer-mcp-server": {
      "type": "http",
      "url": "https://nonprofit-explorer.caseyjhand.com/mcp"
    }
  }
}

3 tools

• 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…

• 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…

• 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…

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