PolyBridge MCP

PolyBridge MCP gives Claude Desktop probabilistic foresight from live prediction markets and approved read-only RVOL access.

Ask a question about the future, even when no exact market exists. PolyBridge finds relevant markets, synthesizes the evidence, and returns a read-only forecast with probabilities and source-market metadata.

Search and Forecast can run without an API key at anonymous limits. AddPOLYBRIDGE_API_KEYfor higher Search/Forecast usage and for approved RVOL access withrvol:read.

PolyBridge MCP is read-only. It does not trade or move funds.

- polybridge_search
- polybridge_forecast
- polybridge_rvol_models
- polybridge_rvol_assets
- polybridge_rvol_latest
- polybridge_rvol_history
- polybridge_rvol_actuals
- polybridge_rvol_features_latest

All tools are read-only. They do not place trades, submit orders, handle custody, or perform write actions.

polybridge_searchretrieves relevant prediction markets for a topic or question.

- Search results return ranked prediction-market retrieval results.
- Scores are relevance/ranking scores, not probabilities.
- Local MCPB Search works withoutPOLYBRIDGE_API_KEYat anonymous limits.
- ConfigurePOLYBRIDGE_API_KEYonly for higher Search usage.
- Ifdimensionsis omitted, Search uses all supported dimensions by default:direct,upstream,downstream, andcorrelated.

polybridge_forecastgenerates read-only forecasts using PolyBridge market search and evidence synthesis.

- Forecast responses return forecast outputs and probabilities.
- Local MCPB Forecast works withoutPOLYBRIDGE_API_KEYat anonymous limits.
- ConfigurePOLYBRIDGE_API_KEYonly for higher Forecast usage.
- Asearch_forecastkey can power both Search and Forecast tools.

Thepolybridge_rvol_*tools provide approved read-only access to PolyBridge realized-volatility model metadata, assets, latest forecasts, forecast history, actuals, and feature snapshot metadata.

- RVOL requiresPOLYBRIDGE_API_KEYwithrvol:read.
- RVOL does not support anonymous access.
- If your key is not approved for RVOL, request access from PolyBridge.
- RVOL responses return curated backend JSON. They are not trading analysis or advice.

- trading
- orders
- payments
- sessions
- market lookup
- Situation Rooms
- internal APIs
- custody
- write actions
- Download the latest.mcpbpackage from GitHub Releases.
- Open or import the file in Claude Desktop.
- Enable the extension.
- Search and Forecast can run without an API key at anonymous limits. ConfigurePOLYBRIDGE_API_KEYfor higher Search/Forecast usage or approved RVOL access.

Use PolyBridge Search to find active prediction markets related to US recession risk.

Use PolyBridge Forecast to estimate the probability of a US recession in 2026.

Use PolyBridge RVOL latest to fetch the latest BTC one-day realized-volatility forecasts.

- Local MCPB Search and Forecast work withoutPOLYBRIDGE_API_KEYat anonymous limits.
- ConfigurePOLYBRIDGE_API_KEYin the Claude Desktop extension settings for higher Search/Forecast usage or approved RVOL access.
- RVOL requires a PolyBridge API key withrvol:readand does not run anonymously.
- Invalid configured auth fails hard and does not fall back to anonymous.
- Use the PolyBridge Developer Console to create a Search+Forecast key or request approved RVOL access from PolyBridge.
- Asearch_forecastkey can power both Search and Forecast tools.
- Do not paste API keys into chat.

- top_k_per_dimension <= 50
- dimensions <= 4

- top_k_per_dimension <= 100
- dimensions <= 4

- dist/polybridge-mcp-v0.3.1.mcpb
- dist/polybridge-mcp-v0.3.1.mcpb.sha256

Do not publish, tag, or upload these files until the release has passed review.

The public REST API supports Search and Forecast without an API key at anonymous limits. Add an API key for higher Search/Forecast usage. RVOL requires an approved PolyBridge API key withrvol:read.

- Search:https://api.polybridge.ai/v1/search
- Forecast:https://api.polybridge.ai/v1/forecast
- RVOL models:https://api.polybridge.ai/v1/rvol/models
- RVOL assets:https://api.polybridge.ai/v1/rvol/assets
- RVOL latest:https://api.polybridge.ai/v1/rvol/latest
- RVOL history:https://api.polybridge.ai/v1/rvol/history
- RVOL actuals:https://api.polybridge.ai/v1/rvol/actuals
- RVOL latest features:https://api.polybridge.ai/v1/rvol/features/latest

Hosted MCP is available athttps://mcp.polybridge.ai/mcp. Search and Forecast can run without an API key at anonymous limits. Add an API key or supported OAuth for higher Search/Forecast usage. RVOL requires approved API-key access. Invalid configured auth fails hard and does not fall back to anonymous.

For higher usage, RVOL access, or other access questions, contact the PolyBridge team.

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