Nonprofit Explorer MCP Server is answering right now. Last checked 14 min ago. 82 installs a week from npm. It exposes 3 tools. Last commit 25 Aug 2026.
MCP server for nonprofit financials via ProPublica — IRS Form 990 data for 1.8M+ nonprofits.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 13 August 2026. No other catalogue keeps this.
Today is the operative word: we check Nonprofit Explorer MCP Server every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.
claude mcp add nonprofit-explorer-mcp-server --transport http https://nonprofit-explorer.caseyjhand.com/mcp
{
"mcpServers": {
"nonprofit-explorer-mcp-server": {
"url": "https://nonprofit-explorer.caseyjhand.com/mcp"
}
}
}
[mcp_servers.nonprofit-explorer-mcp-server]
url = "https://nonprofit-explorer.caseyjhand.com/mcp"
{
"mcpServers": {
"nonprofit-explorer-mcp-server": {
"url": "https://nonprofit-explorer.caseyjhand.com/mcp"
}
}
}
{
"mcpServers": {
"nonprofit-explorer-mcp-server": {
"url": "https://nonprofit-explorer.caseyjhand.com/mcp"
}
}
}
This one needs environment variables set before it will start:
MCP_HTTP_HOST (The hostname for the HTTP server.), MCP_HTTP_PORT (The port to run the HTTP server on.), MCP_HTTP_ENDPOINT_PATH (The endpoint path for the MCP server.), MCP_PUBLIC_URL (Public origin override for deployments behind a TLS-terminating reverse proxy.), MCP_AUTH_MODE (Authentication mode to use: 'none', 'jwt', or 'oauth'.), MCP_LOG_LEVEL (Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').).
The author declared them in the registry entry; get the values from the project itself.
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
nonprofit_get_filings
nonprofit_get_organization
nonprofit_search
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://nonprofit-explorer.caseyjhand.com/mcp | streamable-http | answering | 239 ms | 14 min ago |
MCP server for Financial Modeling Prep API with 250+ financial data tools
MCP server for Omie — ERP, customers, products, orders, invoices, financials
Financial data and analysis tools for Turkish BIST and international markets via MCP.
MCP server for SEC EDGAR data — company filings, financial concepts, and company info
MCP server for Ghostfolio portfolio management and financial data access
MCP server for InsightSentry financial data API - market data, options, screeners, and more
Context and automation MCP server for Warm financial data and approved write operations.
SEC & financial-data MCP: filings, financials, ownership, factors, fund letters, prompts.
Answers built from our own checks of this server.