{"service":"MatrixFold","version":"0.4.0","endpoint":{"method":"POST","path":"/v1/explain-failure","endpoint":"POST /v1/explain-failure","priceUsd":"$0.004","purpose":"Explain failed X create-post responses and return reasonCode, retryability, retryPolicy, and repair hints."},"url":"https://api-production-853c.up.railway.app/v1/explain-failure","payment":{"required":true,"protocol":"x402","network":"eip155:8453","asset":"USDC","priceUsd":"$0.004","unpaidBehavior":"POST returns HTTP 402 with a payment-required challenge."},"useWhen":"Explain failed X create-post responses and return reasonCode, retryability, retryPolicy, and repair hints.","docs":{"capabilities":"https://api-production-853c.up.railway.app/v1/capabilities","openapi":"https://api-production-853c.up.railway.app/openapi.json","examples":"https://api-production-853c.up.railway.app/v1/examples","demo":"https://api-production-853c.up.railway.app/v1/demo/preflight","buyerQuickstart":"https://github.com/jackinehu/MatrixFold/blob/main/docs/BUYER_QUICKSTART.md"}}