mcpbeat

IRS 990 Nonprofit Data MCP Server

com.olyport/irs-990
answering

IRS 990 Nonprofit Data is answering right now. Last checked 14 min ago. It exposes 3 tools.

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

Uptime history 41 hours of history
41 hours agonow
100.0%
Uptime 24h
91 of 91 checks
3
Tools
read from the server
529 ms
Response time
average over 24h
open, no key
Access
streamable-http

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add irs-990 --transport http https://mcp.olyport.com/irs-990/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "irs-990": {
      "url": "https://mcp.olyport.com/irs-990/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.irs-990]
url = "https://mcp.olyport.com/irs-990/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "irs-990": {
      "url": "https://mcp.olyport.com/irs-990/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "irs-990": {
      "url": "https://mcp.olyport.com/irs-990/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

nonprofit
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 (e.g. '13-1837418' or '131837418').
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 '131837418').
nonprofits
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 abbreviation to filter by (e.g. 'CA', 'TX'). ntee_code: NTEE major category code (1-10). 1=Arts, 2=Education, 3=Environment, 4=Health, 5=Human Services, 6=International, 7=Public Benefit, 8=Religion, 9=Mutual Benefit, 10=Unknown. c_code: IRS subsection code (e.g. 3 for 501(c)(3), 4 for 501(c)(4)). page: Zero-indexed page number (25 results per page).

Endpoints

URLTransportStateLatencyChecked
https://mcp.olyport.com/irs-990/mcp streamable-http answering 515 ms 14 min ago

IRS 990 Nonprofit Data — questions

Answers built from our own checks of this server.

What can IRS 990 Nonprofit Data do?
It exposes 3 tools, read directly from the server on our last check. Among them: get_nonprofit_details, get_nonprofit_filings, search_nonprofits. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is IRS 990 Nonprofit Data working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 529 ms. The bar chart above shows every period we have measured.
How do I connect IRS 990 Nonprofit Data?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does IRS 990 Nonprofit Data need an API key?
No. IRS 990 Nonprofit Data completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is IRS 990 Nonprofit Data?
It answers our handshake in 529 ms on average, which is faster than 21% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.