Search reaches across four relations — direct, upstream, downstream and correlated — so a question nobody has listed a market for still lands on markets that bear on it, and Forecast turns those into probabilities with the sources named rather than a number on its own. Two distinctions worth holding onto: search scores are relevance rankings and not probabilities, and the RVOL responses are curated backend JSON rather than trading analysis. Search and Forecast answer without a key at anonymous limits, so the sensible first move is putting a real question to it before deciding whether to ask for one.
A read-only bridge to prediction-market data for Claude Desktop. Search retrieves markets relevant to a question even when no exact market exists, Forecast synthesises them into probabilities with the source-market metadata attached, and a separate group of tools reads PolyBridge's realized-volatility models. It does not trade, place orders, hold custody or write anything.
- polybridge_search returns ranked prediction markets for a topic or question — the scores are relevance rankings, not probabilities
- When you do not name them, search covers all four dimensions: direct, upstream, downstream and correlated
- polybridge_forecast synthesises the evidence into a forecast with probabilities and the source-market metadata behind them
- The realized-volatility group reads model metadata and covered assets with polybridge_rvol_models and polybridge_rvol_assets, current forecasts and their history with polybridge_rvol_latest and polybridge_rvol_history, the actuals to compare against with polybridge_rvol_actuals, and feature snapshot metadata with polybridge_rvol_features_latest
- Every tool reads: none places a trade, submits an order, handles custody or performs a write action
Distributed as an .mcpb package from GitHub Releases: download it, import it into Claude Desktop and enable the extension. Search and Forecast work with no key at anonymous limits, and POLYBRIDGE_API_KEY raises those limits — a single search_forecast key powers both. The RVOL tools require a key carrying rvol:read and have no anonymous path; an unapproved key means asking PolyBridge for access.