990.tax nonprofit lookup
IRS records on US nonprofits: exempt status, revocations, Form 990 financials, due dates, stats.
What it does
990.tax nonprofit lookup is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 4h ago (live check)Hosted endpoint
https://990.tax/mcpstreamable-http
In Claude Code: claude mcp add --transport http 990-tax-nonprofit-lookup https://990.tax/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"990-tax-nonprofit-lookup": {
"url": "https://990.tax/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 4h agoONLINE 990.tax nonprofit lookup answered an MCP connection on 03 Nov 2026 and introduced itself as 990.tax 1.0.0 (MCP protocol 2025-06-18).
8 tools offered to AI assistants
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. Use the EIN with the other tools.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: fcheck_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 yearswhich_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 coget_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 yget_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; natget_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.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://990.tax/mcp | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Website | https://990.tax/mcp | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 4h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 4h ago |
Change history
- NEW03 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is 990.tax nonprofit lookup still online?
Free alerts · no account▲ 0Do you run 990.tax nonprofit lookup? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
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How do I connect 990.tax nonprofit lookup?
Use the hosted endpoint https://990.tax/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does 990.tax nonprofit lookup offer?
When Electra Index connected on 03 Nov 2026, it listed 8 tools: search_nonprofits, get_nonprofit_profile, check_exempt_status, which_990_form, get_filing_due_date, get_nonprofit_stats, get_top_nonprofits, explain_irs_reject_code. The full list is in "Live check" above.
Is 990.tax nonprofit lookup online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 4h ago.