Prices come from retailer data and recommendations from a similarity engine, so two of the most common questions get real answers rather than a link. The rules tool is the experimental one and works by searching the forums, which is where board game rules arguments are in fact settled — mention it by name in your question to steer the assistant there.
A Go server over the BoardGameGeek API, with retailer pricing from BoardGamePrices.co.uk and similarity recommendations from Recommend.Games alongside it.
- Game search with type filtering — base games, expansions, or both — and full detail for any game
- A user's collection queried and filtered, with extensive filter options, and user profile lookup
- The current BGG hotness list
- Current prices from several retailers, looked up by BGG id
- Trading opportunities worked out between two BGG users
- Recommendations for games similar to one you name
- Forum threads read in full, and an experimental rules tool that answers a rules question by searching BGG forums for the relevant discussion
- Two resources an assistant can read directly — the hotness list, and your own collection — plus prompts for a trade sales post and personalised recommendations
Authentication for the BoardGameGeek API: either BGG_API_KEY, requested through BGG's API application form, or BGG_COOKIE with your session — the key wins if both are set. Setting BGG_USERNAME lets you say "my collection" instead of naming yourself every time. Published as a Docker image and listed on the MCP registry; you can also build the Go binary yourself and run it over stdio.