gamma_sonar

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Get the dealer gamma-exposure (GEX) and pin-risk map for one US ticker from live Tradier option chains: long/short gamma regime, zero-gamma flip line, call and put walls, max open-interest pin strike, and the full per-strike GEX ladder. Use this when an agent needs to know where options dealers are forced to hedge, for example before judging whether a move is likely to be dampened or amplified. An unsigned call returns the live x402 PAYMENT-REQUIRED challenge (USDC on Base; the challenge states the exact price) and never auto-spends; retry only with a challenge-specific payment_signature. If no chain, spot price, or open interest exists, it returns an honest not-available result and nothing is charged. A supplied signature authorizes one paid, irreversible x402 settlement. Informational market structure, not investment advice. For example, check SPY's zero-gamma line before the open.