How do I connect Nonprofit Explorer MCP Server to Claude?

The listing records `bunx @cyanheads/nonprofit-explorer-mcp-server@latest` as its setup step. Run it, then follow the repository's instructions for the client configuration; the listing names Claude Desktop, Cursor, VS Code as compatible clients.

Is Nonprofit Explorer MCP Server free?

The listed licence is Apache-2.0. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.

What can Nonprofit Explorer MCP Server do?

Nonprofit Explorer MCP Server documents 3 tools to the agent, including nonprofit_get_filings, nonprofit_get_organization, nonprofit_search. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.

Nonprofit Explorer MCP Server

Unclaimed

by cyanheads

Search and explore 1.8M+ US nonprofits, fetch Form 990 financials, and access IRS filing history via MCP. STDIO or Streamable HTTP.

Install

$bunx @cyanheads/nonprofit-explorer-mcp-server@latest

Set up this server

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This server needs project-specific setup. Follow the project instructions; no reusable public launch command is available yet.

Project instructions

ai-agentsbunirs-990mcpmcp-servermodel-context-protocolnonprofitphilanthropypropublicatypescript

Is this your MCP server?

This listing was auto-indexed from the public record. Claim it to edit the page, set compatibility and unlock growth tools. Takes under two minutes.

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Security profile

Claimed and verified servers get a weekly static scan that shows what the code can reach: external services, environment variables, shell commands, agent configuration folders, plus any dependencies with known advisories. Claim this listing to get one. How the security profile works

Documented tools (3)

From project documentation. A server handshake does not verify each tool’s description or behavior.

nonprofit_get_filings

All Form 990 filings for an org by EIN: year-by-year financials, revenue breakdown, executive compensation, and source PDF links

nonprofit_get_organization

Full profile for one org by EIN: legal identity, IRS classification, ruling date, and a financial snapshot from the most recent Form 990

nonprofit_search

Search 1.8M+ IRS-recognized tax-exempt organizations by name, keyword, city, or phrase with optional state, NTEE sector, and 501(c) filters

Tool change history

Compared across complete checks of the same configuration. Tools were listed, not invoked. Input-schema changes are not measured here.

No complete tool checks yet.

FAQ

Questions about Nonprofit Explorer MCP Server

How do I connect Nonprofit Explorer MCP Server to Claude?: The listing records `bunx @cyanheads/nonprofit-explorer-mcp-server@latest` as its setup step. Run it, then follow the repository's instructions for the client configuration; the listing names Claude Desktop, Cursor, VS Code as compatible clients.
Is Nonprofit Explorer MCP Server free?: The listed licence is Apache-2.0. Check the upstream terms for permitted use and commercial requirements; a public repository does not by itself mean the software is free or open source. Connected APIs and hosted services may have separate charges.
What can Nonprofit Explorer MCP Server do?: Nonprofit Explorer MCP Server documents 3 tools to the agent, including nonprofit_get_filings, nonprofit_get_organization, nonprofit_search. The descriptions above come from project documentation. A live handshake does not test individual tool behavior.