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IRS 990 Nonprofit Data

com.olyport/irs-990 · v1.1.0

No registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	experimental, prompts, resources, tools
Tool definitions	3 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica

streamable-http · https://mcp.olyport.com/irs-990/mcp

claude mcp add --transport http irs-990 https://mcp.olyport.com/irs-990/mcp

{
  "mcpServers": {
    "irs-990": {
      "url": "https://mcp.olyport.com/irs-990/mcp"
    }
  }
}

search_nonprofits
Search for nonprofit organizations by name or keyword. Searches the ProPublica Nonprofit Explorer database of IRS 990 filers. Returns organization name, EIN, location, revenue, and tax status. Args: query: Search keywords (e.g. 'food bank', 'habitat for humanity'). state: Two-letter state abbreviati
get_nonprofit_details
Get detailed information about a nonprofit organization by EIN. Returns comprehensive data from the organization's IRS 990 filings including revenue, expenses, assets, executive compensation, and filing history. Use search_nonprofits first to find the EIN. Args: ein: Employer Identification Number (
get_nonprofit_filings
Get the filing history for a nonprofit organization. Returns a list of all available IRS 990 filings for the organization, including both filings with parsed data and those without. Useful for tracking financial trends over time. Args: ein: Employer Identification Number (e.g. '13-1837418' or '13183

Website · JSON · Text for agents · Registry updated 2026-04-04