← MCP Reliability Index / Files & Storage

Nonprofit Explorer Mcp Server

io.github.cyanheads/nonprofit-explorer-mcp-server

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

healthy

status

tools exposed

533ms

connect latency

79f9f0a3b630

schema fingerprint

Tools (3)

nonprofit_search

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 paginated at 25 per pag

nonprofit_get_organization

Full profile for a single tax-exempt org by EIN: legal name, address, NTEE classification, 501(c) type, IRS ruling date, and a financial snapshot from the most recent Form 990 filing (revenue, expenses, assets, net assets, and the source PDF link). Use nonprofit_search first if you only have an org

nonprofit_get_filings

All Form 990 filings for a tax-exempt org by EIN: year-by-year revenue, expenses, assets, program-expense ratio (with inputs shown), executive compensation, and source PDF/XML links. Use for trend analysis, due diligence, and accessing primary 990 documents. The filing year (tax_prd_yr) is the fisca

Endpoint

https://nonprofit-explorer.caseyjhand.com/mcp
Category: Files & Storage · Last checked: 2026-07-30T13:52:58Z

Monitor your own MCP server

Get alerted the moment yours goes down, a tool schema drifts, or an upstream silently breaks.

Get early access

How we measure →

What this means. This server responded to the MCP handshake and listed its tools without authentication. The schema fingerprint lets us flag if tool signatures silently change (schema drift) between checks.