US Nonprofit & Charity Check MCP

io.github.donniertf-hub/us-nonprofit-check-mcpVersion 1.0.0

Check any US charity or nonprofit by name or EIN. Free nonprofit_check tool.

Status

Responds101 msNov 14, 2026, 14:50 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:50 UTC
Latency: 101 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://us-nonprofit-check-mcp.donniertf.workers.dev/mcpResponds101 msNov 14, 2026, 14:50 UTC

No sign-in

Claude Code

claude mcp add --transport http us-nonprofit-check-mcp https://us-nonprofit-check-mcp.donniertf.workers.dev/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: us-nonprofit-check-mcp
Remote MCP server URL: https://us-nonprofit-check-mcp.donniertf.workers.dev/mcp

Cursor

{
  "mcpServers": {
    "us-nonprofit-check-mcp": {
      "url": "https://us-nonprofit-check-mcp.donniertf.workers.dev/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"us-nonprofit-check-mcp","type":"http","url":"https://us-nonprofit-check-mcp.donniertf.workers.dev/mcp"}'

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Tools

3 tools

Tools of US Nonprofit & Charity Check MCP
	Description		Read-only	Idempotent	Open world
`financials`PRO. Form 990 financial history for an EIN: revenue, expenses, assets, liabilities, officer compensation, program/overhead ratio by year.	PRO. Form 990 financial history for an EIN: revenue, expenses, assets, liabilities, officer compensation, program/overhead ratio by year.	Not declared	Not declared	Not declared	Not declared
`nonprofit_check`FREE. Find a US nonprofit/charity by name or EIN — top 3 with city, state and 501(c) type.	FREE. Find a US nonprofit/charity by name or EIN — top 3 with city, state and 501(c) type.	Not declared	Not declared	Not declared	Not declared
`prospect_list`PRO. Nonprofits matching a keyword in a state (e.g. 'food bank', 'hospital', 'school') — for fundraising consultants, SaaS and grant writers.	PRO. Nonprofits matching a keyword in a state (e.g. 'food bank', 'hospital', 'school') — for fundraising consultants, SaaS and grant writers.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Oct 29, 2026
Updated: Oct 29, 2026
Website: https://us-nonprofit-check-mcp.donniertf.workers.dev/⁠ (opens in a new tab)
Repository: https://github.com/donniertf-hub/uk-mcp-fleet⁠ (opens in a new tab)
Categories (suggested): CRM Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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