Official MCP RegistryHosted servermcp.olyport.com
IRS 990 Nonprofit Data
Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica.
Connect to Claude Code
Copyclaude mcp add --transport http irs-990-nonprofit-data https://mcp.olyport.com/irs-990/mcpVendor-hosted remote server: nothing to install locally. If it uses OAuth, Claude opens the vendor login on first use.
Endpoints
- https://mcp.olyport.com/irs-990/mcpstreamable-http
Published in the official MCP registry as “IRS 990 Nonprofit Data”. Verified through the vendor namespace.