{"slug":"deadchannel-vercel-app-probe-6d2994","title":"Use before paying an x402 endpoint you have not used before, when you cannot tel","host":"deadchannel.vercel.app","method":"POST","resource":"https://deadchannel.vercel.app/probe","category":"market","description":"Use before paying an x402 endpoint you have not used before, when you cannot tell a working seller from a trap, a testnet address dressed as mainnet, or a listing whose price no longer matches its challenge. Returns a verdict — live, degraded, trap, testnet or dead — a 0-100 risk score, and the spec","price_listed":0.005,"price_asked":0.005,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":299,"reported_calls_30d":10,"reported_payers_30d":3,"networks":["algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=","eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"url":"https://api.example.com/paid-endpoint"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"body":{"properties":{"method":{"description":"HTTP verb the resource expects, if known","type":"string"},"samples":{"description":"Probes to take, 1-5 (default 2)","type":"number"},"url":{"description":"The x402 resource URL to check","type":"string"}},"required":["url"],"type":"object"}},"type":"object"},"output":{"properties":{"example":{"properties":{"latencyMs":{"properties":{"p50":{"type":"number"},"p99":{"type":"number"}},"type":"object"},"priceUsd":{"type":"number"},"problems":{"items":{"properties":{"detail":{"type":"string"},"id":{"type":"string"},"status":{"type":"string"}},"type":"object"},"type":"array"},"risk":{"type":"number"},"url":{"type":"string"},"verdict":{"type":"string"}},"type":"object"}},"type":"object"}},"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.005,"price_match":true,"latency_ms":299,"error":null}],"description_full":"Use before paying an x402 endpoint you have not used before, when you cannot tell a working seller from a trap, a testnet address dressed as mainnet, or a listing whose price no longer matches its challenge. Returns a verdict — live, degraded, trap, testnet or dead — a 0-100 risk score, and the specific findings behind both, so an agent can decline a bad endpoint instead of learning about it by losing the money. Costs less than the smallest payment it protects.","last_updated":"2026-09-14T18:45:15.398Z","schemes":["exact"]}