Introduction
Parlay is a read-only MCP server that brings prediction market data from Polymarket, Kalshi, Limitless, and Manifold into Claude, ChatGPT, Gemini, OpenClaw, and other MCP-compatible clients.
Parlay is a read-only MCP server for prediction market research. It lets AI assistants search markets, compare venue coverage, inspect platform status, and write short market briefs without switching between dashboards.
The current MVP focuses on four venues: Polymarket, Kalshi, Limitless, and Manifold. Opinion.trade is tracked separately as a limited-liquidity status page, not a primary venue.
Read-only by design
Parlay does not place orders, manage positions, or provide investment advice. It returns structured market data and source links so your AI client can help with research.
Connect Your AI Assistant
Choose the client you already use. Chat apps work well for conversational research; CLI agents work well for terminal workflows.
Claude
Install Parlay as an MCP connector and ask market questions in plain English.
ChatGPT
Use Parlay through ChatGPT connector workflows where MCP is available.
Gemini CLI
Connect Parlay to Gemini's command-line assistant.
OpenClaw
Use Parlay from an open-source CLI agent.
MCP Tools
Parlay exposes six read-only tools:
search_marketsdiscover_marketscompare_marketsscan_discrepanciesinspect_platformmarket_brief
See the tool reference for what each tool does and which plan includes it.
Prediction Markets
Polymarket
Crypto-native prediction market coverage for public market research.
Kalshi
US regulated event-contract coverage for research workflows.
Limitless
Additional prediction market coverage in the Parlay venue set.
Manifold
Community sentiment from play-money forecasting markets.