MCP server exposing 5 tools for grants-gov.
This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.
POST https://gateway.pipeworx.io/grants-gov/mcp
Content-Type: application/json
{"jsonrpc":"2.0","id":1,"method":"tools/list"}search_opportunities — Search Grants.gov for currently-open or recently-closed federal funding opportunities. Filter by keyword, opportunity status, agency code, funding category, or date range. Returns opportunity number, title, agency, open/close dates, and assistance listing numbers (formerly CFDA).get_opportunity — Fetch full details for a Grants.gov opportunity by ID. Returns synopsis text, eligibility, award ceiling/floor, attachments, contact info, and version history.search_historical_opportunities — Search Grants.gov's FULL opportunity history (closed and archived opportunities back to 2004, plus forecasted opportunities not yet posted) — coverage search_opportunities' live API cannot serve, since search2 only usefully answers "what is open right now". Covers Grants.gov's full catalog, refreshed once a day (see `data_as_of`). Filter by agency code, CFDA/Assistance Listing number, keyword (full-text over title + description), status, opportunity category, or post-date range. Unlike search_opportunities, status here defaults to EVERY status, not just "posted" — pass status explicitly to narrow. Answers "what did this agency fund last fiscal year", "what opportunities under CFDA 93.351 have ever closed", "what is forecasted for next year that hasn't posted yet".get_historical_opportunity — Fetch one Grants.gov opportunity by its numeric opportunity ID, in ANY status (open, closed, archived, or forecasted) — unlike get_opportunity, which calls the live API and only reliably resolves currently-open opportunities. Returns the full record plus a computed `status` (derived from close/archive dates against today, the same vocabulary search_historical_opportunities uses) and `data_as_of`.agency_posting_trend — An agency's opportunity-posting trend by federal fiscal year (Oct-Sep): how many opportunities it posted, total estimated program funding, and average award ceiling, per year. Answers "is this agency posting more or fewer opportunities than last year" and "how has this agency's funding trended". Fiscal year is derived from each opportunity's post_date.Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/grants-gov/
Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io