prediction_market_orderbook

io.github.nansen-ai/nansen-mcp · Verify this server

Live orderbook for a Polymarket market. **When to use:** - Bid/ask depth, liquidity, and yes-share / no-share order structure. **Key fields:** - `Order Size` is share quantity, not USD. Do not describe share size as dollar depth unless you calculate `shares × price`. **Yes/No price relationship:** - Yes and No are complementary (Yes + No ≈ $1). A No bid at price $X means willingness to buy No when Yes is near $(1−X). - A cluster of No bids at low prices (e.g. $0.20) is resistance for Yes rallying to ~$0.80, NOT a support floor for the current Yes price. - When comparing OHLCV odds against orderbook depth, convert No-side prices to Yes-equivalent (1 − No price) before drawing divergence conclusions. **Pitfalls:** - Do not treat raw no-share prices as bearish yes-share odds — prefer `prediction_market_ohlcv` for current odds / implied probability. **Prerequisites:** If `marketId` is unknown, call `prediction_market_lookup` first.