990.tax nonprofit lookup

Connect Remote server

claude mcp add --transport http nonprofit-lookup https://990.tax/mcp

{
  "mcpServers": {
    "nonprofit-lookup": {
      "url": "https://990.tax/mcp"
    }
  }
}

{
  "servers": {
    "nonprofit-lookup": {
      "type": "http",
      "url": "https://990.tax/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://990.tax/mcp

Tools 8 found in our last check

• search_nonprofits

  Find US tax-exempt organizations by name or EIN in IRS records. Returns up to 10 matches with EIN, city, state, exempt status (active, revoked, reinstated, terminated) and the latest form filed.

• get_nonprofit_profile

  One organization's IRS record: exempt status, 501(c) subsection, NTEE category, ruling year, deductibility (Publication 78), fiscal year end, which return it files, last filing, and the latest e-filed financial summary. Optional sections: financials (up to 5 years of revenue, ex…

• check_exempt_status

  Whether the IRS automatically revoked an organization's tax exemption (revocation, posting and reinstatement dates), and which of its last three ended accounting years have no return on the IRS public files. Three consecutive missing years revoke the exemption (IRC 6033(j)).

• which_990_form

  Which annual return applies under the IRS thresholds: 990-N (gross receipts normally $50,000 or less), 990-EZ (under $200,000 and assets under $500,000), 990, 990-PF, or none (churches, group-return members). With an EIN, missing amounts come from the IRS Business Master File. C…

• get_filing_due_date

  Due date of a Form 990-N, 990-EZ, 990 or 990-PF for a fiscal year end and tax year, moved off weekends and legal holidays, the Form 8868 extended due date (none for the 990-N), days remaining, and late-filing consequences. Give the fiscal year end month or an EIN. Tax year = the…

• get_nonprofit_stats

  Counts and totals for US tax-exempt organizations from IRS public data: national, one state, or one NTEE major category (A-Z). Active organizations, 990-N filers, revocations, and revenue, assets, employees and pay from e-filed returns; national adds e-Postcard filers by year, r…

• get_top_nonprofits

  Ranked lists from e-filed Form 990 returns, national (25) or per state (10): highest-paid executives, largest by revenue, most money raised, richest by net assets, biggest employers.

• explain_irs_reject_code

  Plain-English meaning of an IRS Modernized e-File business rule reject code for Forms 990-N, 990-EZ, 990 and 8868 (e.g. R0000-922-01), the IRS rule text, and how to fix it.

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