{"uid":"cap_TrD1LmEtYi8J-CP8siXwZ","slug":"chainverdict-pulse-attestation-7beded27","name":"ChainVerdict Pulse Attestation","description":"Fresh probe of your endpoint plus an Ed25519-signed quality attestation (compact JWS, 24h TTL) you can embed in your 402 responses to raise buyer conversion.","url":"https://pulse.chainverdict.xyz/v1/attest?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string"}}},"responseSchema":{"type":"object","properties":{"kid":{"type":"string"},"url":{"type":"string"},"payload":{"type":"object"},"attestation":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.12","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.12/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.12","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.12","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dpfw0bkI4sgV2dE802iy1","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.12","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Probes an x402 endpoint and returns an Ed25519-signed quality attestation (compact JWS, 24h TTL) suitable for embedding in 402 payment responses to increase buyer conversion.","exampleAgentPrompt":"Probe my x402 endpoint at https://api.myservice.com/v1/data and give me a fresh Ed25519-signed quality attestation I can embed in my 402 responses to help buyers trust it.","exampleUseCases":[{"title":"Boost 402 payment conversion rate","prompt":"My x402 API at https://api.example.com/premium/feed is getting low conversion — can you fetch a fresh signed quality attestation for it so I can embed it in my 402 responses to reassure buyers it's live and conformant?"},{"title":"Pre-launch endpoint certification","prompt":"Before I go live with my paid API at https://api.mybiz.com/v1/stream, get me an Ed25519-signed attestation from ChainVerdict Pulse confirming it's healthy and 402-conformant — I want to include that JWS token in my payment offer."},{"title":"Renew expiring attestation token","prompt":"My ChainVerdict attestation for https://data.myprovider.xyz/v1/quotes is about to expire — can you get a fresh 24-hour signed JWS attestation so my 402 responses keep showing buyers the quality proof?"}],"resultDescription":"Returns a compact JWS (JSON Web Signature) containing an Ed25519-signed quality attestation for the probed endpoint. The attestation includes a freshness probe result, quality verdict, and a 24-hour TTL, making it embeddable in HTTP 402 payment responses to signal trustworthiness to potential API buyers.","failureModes":["Target endpoint unreachable — attestation cannot be issued if the probed URL is offline","Invalid or non-x402 endpoint URL — returns error if the target doesn't present a valid 402 payment offer","Malformed URL input — query parameter 'url' missing or not a valid HTTP URL","Attestation service unavailable — upstream signing service downtime prevents JWS generation","Rate limit or payment failure — $0.12 USDC call fee not settled, request rejected"],"whenToPreferThis":"Choose this endpoint when you need a cryptographically signed, third-party quality attestation to embed in your HTTP 402 responses — specifically to increase buyer trust and conversion for x402-gated APIs. It combines a live endpoint probe with an Ed25519 signature in a single call, unlike raw monitoring tools that only return metrics without a verifiable credential. Prefer it over generic uptime monitors when your use case is the x402 payment ecosystem and you need a portable JWS token buyers can verify independently.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T00:30:43.679Z","isFirstParty":false,"canonicalSlug":"chainverdict-pulse-attestation-7beded27"}