{"service":"ReactionPulse","version":"0.1.0","description":"ReactionPulse simulates how multiple stakeholder perspectives would react to a product launch, announcement, price change, decision, news item, hypothesis or proposal. INPUT: JSON body {prompt (required, 8-6000 chars), context? (<=4000 chars), perspectives?[] (e.g. customer, skeptical_customer, developer, investor, competitor, early_adopter), audience?, output_language? (ISO code, default en)}. CAPABILITY: selects 4-6 relevant perspectives (customer, skeptical customer, developer, investor, competitor, early adopter, analyst, regulatory risk, market...) and produces a structured analytical simulation with quantified scores, objections, positive reactions, failure modes, market implications and recommended adjustments. OUTPUT: strict JSON: overall_sentiment (0-100), positive_probability and negative_probability (0-1), controversy_score (0-100), perspectives[{role, stance, sentiment, headline, reasoning, top_concern, top_appeal}], likely_objections[], likely_positive_reactions[], failure_modes[{description, likelihood}], market_implications[], recommended_adjustments[], key_uncertainties[], confidence (0-1), input_integrity. PRICE: $0.49 USDC per call via x402 on Base. LATENCY: typically 15-45 seconds, up to 90 seconds; keep client timeouts at 120 seconds. LIMITATIONS: analytical LLM simulation, not a survey of real people; probabilities are estimates, not calibrated statistics; no web browsing (put relevant facts in context); one subject per call.","endpoints":{"reaction":"POST /v1/reaction","openapi":"/openapi.json","x402":"/.well-known/x402","info":"/v1/info","llms":"/llms.txt","health":"/health"}}