IRS 990 Nonprofit Data

com.olyportPublished by olyport.comOfficial publisherv1.1.0Updated Oct 24, 2026

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

The publisher's own server: BEA Economic Accounts

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

AI-generated overview

Remote MCP server that lets an assistant look up US nonprofits and their IRS 990 financial data through the ProPublica Nonprofit Explorer.

What you can do
Search nonprofits by name or keyword, optionally filtered by state, and get name, EIN, location, revenue and tax status. Retrieve detailed organization data from IRS 990 filings, including revenue, expenses, assets, executive compensation and filing history. List all available filings for an organization to track financial trends over time.
When to use it
Useful when you need to research a US charity or foundation before donating, vetting a grantee, or comparing nonprofit finances and executive pay over several years.
Requirements
A remote streamable HTTP endpoint; no local runtime, account, API key or environment variables are declared. Network access to the endpoint is needed.
Before you install
Read-only lookups; no writing, sending or deleting is described. Results come from third-party ProPublica data on IRS 990 filers, so figures may be incomplete or lag behind filings and should be verified before financial or grant decisions.

Installation

In SourceWeft

  1. Open IRS 990 Nonprofit Data in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.olyport%2Firs-990/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

Tools

3

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).

Parameterspagequeryrequiredstatec_codentee_code

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').

Parameterseinrequired

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').

Parameterseinrequired

Version history

1
  1. v1.1.0LatestSep 16, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.

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