MCP server

IRS 990 Nonprofit Data

com.olyport/irs-990

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Working at last checkVerified publisher: olyport.comAbout 676 tokens per request once connected3 tools

https://mcp.olyport.com/irs-990/mcp

At a glance

Type: MCP server
Publisher: olyport.com (verified by the MCP Registry)
Status: Working at last check
Tools: 3
Token cost: About 676 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http irs-990 https://mcp.olyport.com/irs-990/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.irs-990]
url = "https://mcp.olyport.com/irs-990/mcp"

Gemini CLI

{"mcpServers":{"irs-990":{"httpUrl":"https://mcp.olyport.com/irs-990/mcp"}}}

Cursor

{"mcpServers":{"irs-990":{"url":"https://mcp.olyport.com/irs-990/mcp"}}}

VS Code

{"servers":{"irs-990":{"type":"http","url":"https://mcp.olyport.com/irs-990/mcp"}}}

Antigravity

agy mcp add irs-990 https://mcp.olyport.com/irs-990/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"irs-990","server_url":"https://mcp.olyport.com/irs-990/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"irs-990","server_url":"https://mcp.olyport.com/irs-990/mcp"}

get_nonprofit_details ~163 tokens
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: Employ
get_nonprofit_filings ~155 tokens
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
search_nonprofits ~358 tokens
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'). stat

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