Grant Graph: who actually funds each cause, from public records
An independent, free grant data index built from IRS 990 filings and the grants.gov API: 2,594,923 grants totaling $243.92B from 102,799 funders, fused with every open federal opportunity, updated daily.
https://grantgraph.org/Opens ChatGPT on the web or desktop and asks it to use the WebMCP tools available here.
Connect straight to this server’s public endpoint.
https://mcp.grantgraph.org/mcpWe add this server to your workspace, then open Studio — saved access, one connection to many servers, with a history of what ran.
Last probed Sep 18, 2026 · mcp.grantgraph.org
4tools discovered
Find Funders
Find the private foundations that have actually funded a cause, from their own IRS 990 filings.
Open Federal Opportunities
Open federal funding opportunities that are eligible for nonprofit applicants, matched against full synopsis text.
Funding Gap
For each cause: how many open, nonprofit-eligible FEDERAL opportunities exist right now versus how much PRIVATE foundat…
List Causes
The causes this index currently covers, with grant counts.
Get your MCP into directories
A working endpoint is step one. Directory coverage is the coordinated launch across ChatGPT, Claude, Cursor, the MCP Registry, and community indexes.
Directory coverage for brandsAn independent, free grant data index built from IRS 990 filings and the grants.gov API: 2,594,923 grants totaling $243.92B from 102,799 funders, fused with every open federal opportunity, updated daily.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
MCPBundles probed 4 tools on the live server. The tool list on this page reflects what was discovered at the last refresh — connect your client to see the full set available to your session.
Request removal if you do not want grantgraph listed here, or claim the listing if you want to manage it on MCPBundles.
This server appears in the MCPBundles directory. Verify you operate it to take over the listing — name, description, logo, contact email, and skill content. We email a 6-digit code to a maintainer address your server publishes in /.well-known/security.txt or /.well-known/mcpbundles.json. Free, takes about a minute.
No provider sign-in was required during MCPBundles' probe. Your client may still need MCPBundles credentials depending on how you connect.
Request removal from the MCPBundles directory. This does not shut down or change your MCP server — we stop showing it on MCPBundles.
MCPBundles is an independent platform built on the open Model Context Protocol standard. Not affiliated with Anthropic PBC or Claude.