{"endpoint":"/api/blah/negotiate","method":"POST","description":"Multi-turn negotiation intelligence — ZOPA/BATNA analysis, concession sequencing, anchor calibration, bluff detection, and power dynamics","price":"$3.00 via x402 (USDC on Base or Solana)","product":"BLAH (Be Like A Human)","modes":{"personalized":"Include kyh_profile for personality-aware negotiation strategy (Mode 1)","contextual":"Without kyh_profile, generates domain-appropriate strategy (Mode 2)"},"input":{"agent_position":"Object with goals[], constraints[], walk_away (required)","counterparty_position":"Object with known_goals[], known_constraints[], estimated_leverage 1-5 (required)","domain":"Industry/context (required)","negotiation_type":"salary | contract | partnership | procurement | price | terms (required)","current_stage":"opening | mid | closing | stalled (required)","kyh_profile":"Optional KYH personality data","history":"Optional prior exchanges"},"output":"ZOPA analysis + strategy + concession sequence + tactics + bluff detection + power dynamics + personality adjustments + avoid list"}