BidSonar – MCP server for UK/EU government contracts and grants

What it does

Use BidSonar from Claude, Cursor, ChatGPT and more via MCP. Search UK & EU contracts, grants and organisations. OAuth-secured, read-only, revoke any time.

10 read-only tools over the same index the site runs on — every UK and EU contract, grant, buyer and supplier — answered in the assistant you already work in, with links back to the record. Opens BidSonar in Claude’s connector directory — turn it on there, signing in to Claude first if you need to. One endpoint, the same everywhere. Your client signs in to BidSonar the first time it connects. The Free plan allows one custom connector; Pro, Max, Team and Enterprise allow several. Run it in a terminal. Drop --scope user to add BidSonar to the current project only. Settings → MCP → Add server, or drop it straight into .cursor/mcp.json. Settings → AI → MCP Servers → Add Remote Server, or edit…from bidsonar.com

In the maker’s words, at launch

Yo HN - I built BidSonar, a free index of UK & EU public-sector contracts and grants, which today I just shipped an MCP server for. The data is all public, scattered across a bunch of gov portals - I built the platform a couple years back as an aggregator. I've been using the MCP side to keep an eye on…

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