Search / tax.990/nonprofit-lookup
protogridR0· no sign-inIRS records on US nonprofits: exempt status, revocations, Form 990 financials, due dates, stats.
v1.0.0 · active · website · descriptor JSON · versions
{
"mcpServers": {
"nonprofit-lookup": {
"type": "http",
"url": "https://990.tax/mcp"
}
}
}claude mcp add --transport http nonprofit-lookup https://990.tax/mcp[mcp_servers.nonprofit-lookup]
url = "https://990.tax/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"nonprofit-lookup": {
"type": "remote",
"url": "https://990.tax/mcp",
"enabled": true
}
}
}{
"mcpServers": {
"nonprofit-lookup": {
"type": "http",
"url": "https://990.tax/mcp"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=nonprofit-lookup&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vOTkwLnRheC9tY3AifQ%3D%3D"
}{
"servers": {
"nonprofit-lookup": {
"type": "http",
"url": "https://990.tax/mcp"
}
}
}{
"mcpServers": {
"nonprofit-lookup": {
"httpUrl": "https://990.tax/mcp"
}
}
}extensions:
"nonprofit-lookup":
enabled: true
name: "nonprofit-lookup"
type: streamable_http
uri: "https://990.tax/mcp"
timeout: 300
protocol.modernprotocol.statelessprotocol.transportprotocol.list_ttlauth.prm, auth.as_metadata, auth.cimdauth.secret_in_urltools.descriptionstools.description_lengthtools.schemastools.annotationstools.directory_hintstools.token_costtools.api_dumptools.hidden_textstability.changesstability.rug_pullstability.new_linksdeps.known_vulns, deps.mcp_sdk_version, deps.resolvablesearch_nonprofitschangeddescriptionFind 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. Use the EIN with the other tools.
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.
Full history: list_changes · trend: quality JSON.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+dns-namespace +website +reachable +uptime-95% +updated-11d-ago -no-repository
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://990.tax/mcp streamable-http | none | yes | 95% | 439 ms | 2025-11-25 | 2026-11-14 |
check_exempt_statusread-only | 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)). |
explain_irs_reject_coderead-only | 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. |
get_filing_due_dateread-only | 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 calendar year the accounting year begins in; default is the latest ended year. |
get_nonprofit_profileread-only | 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, expenses, assets from e-filed Form 990/990-EZ/990-PF), officers (up to 15 officers, directors and key employees with compensation from the latest e-filed return), filing_history (e-Postcards and e-filed returns). |
get_nonprofit_statsread-only | 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, revocations by month and organizations by category. |
get_top_nonprofitsread-only | 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. |
search_nonprofitsread-only | 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. |
which_990_formread-only | 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 $500,000), 990, 990-PF, or none (churches, group-return members). With an EIN, missing amounts come from the IRS Business Master File. Cites the IRS rule. |
Schemas: list_tools.
{
"name": "tax.990/nonprofit-lookup",
"title": "990.tax nonprofit lookup",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://990.tax/mcp",
"type": "streamable-http"
}
],
"version": "1.0.0",
"websiteUrl": "https://990.tax/mcp",
"description": "IRS records on US nonprofits: exempt status, revocations, Form 990 financials, due dates, stats."
}