{"uid":"cap_Qi67V2htak_FRGVEzjNVE","slug":"payperbyte-cctp-v2-attestation-latency-feed-07487334","name":"PayPerByte CCTP v2 Attestation Latency Feed","description":"Measured Circle CCTP v2 attestation latency: Fast/Standard distributions (never blended), first-party burn polling. Bounded observations; percentiles withheld below sample floor. Embedded EIP-712 receipt proves who signed the bytes, not that latency holds. Full: https://x402.payperbyte.io/feeds","url":"https://x402.payperbyte.io/feeds/cctp-attestation-latency","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"path":{"enum":["fast","standard"],"type":"string","description":"Optional. CCTP v2 settlement path. Fast and Standard are never blended — omitting this returns both as separate distributions; an unrecognized value is a 400, not a silent fallback."},"chain":{"enum":["base","arbitrum","optimism"],"type":"string","description":"Optional. Narrow to one source chain. Omit for every configured chain. An unrecognized value is a 400, not a paid empty answer."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oNLBRxQe9xGucjLHMPYKX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns signed latency distribution metrics for Circle's CCTP v2 cross-chain bridge attestation, separated by Fast and Standard settlement paths, with first-party burn polling data.","exampleAgentPrompt":"Pull me the current CCTP v2 attestation latency distributions for both fast and standard paths on Base — I need the signed breakdown to see which settlement route is performing better right now.","exampleUseCases":[{"title":"Optimizing cross-chain transfer routing","prompt":"I'm about to do a USDC cross-chain transfer via CCTP. Can you check the current attestation latency for the fast path on Arbitrum so I know if it's worth paying for faster settlement?"},{"title":"Monitoring CCTP bridge health","prompt":"Pull the CCTP v2 attestation latency stats for both fast and standard paths across all chains — I want to see if there are any outliers or slowdowns right now, with the signed payload so I can verify the data."},{"title":"Benchmarking settlement speed by chain","prompt":"Get me the standard path CCTP v2 attestation latency distribution specifically for Optimism — I'm comparing bridge performance across chains and need the first-party signed metrics."}],"resultDescription":"A cryptographically signed (EIP-712) payload containing latency distribution statistics for Circle CCTP v2 attestation, broken out by settlement path (Fast and Standard are always separate, never blended). Includes first-party burn polling data, bounded observations, and percentile metrics (withheld when sample count falls below the floor). The EIP-712 receipt proves the signing identity of the data provider.","failureModes":["400 error if an unrecognized 'path' value is submitted (no silent fallback)","400 error if an unrecognized 'chain' value is submitted (no paid empty answer)","Percentile statistics withheld when observation count is below the sample floor","Payment failure if USDC balance is insufficient for the $0.01/call fee","Empty or partial distribution if no observations exist for the requested chain/path combination"],"whenToPreferThis":"Use this endpoint when you need signed, verifiable CCTP v2 attestation latency data from a first-party source — particularly when you need Fast and Standard paths reported separately (not blended), or when the cryptographic provenance of the data (EIP-712 receipt) matters for your application. Prefer this over generic bridge monitoring tools when you need per-chain breakdown across Base, Arbitrum, or Optimism, or when you need audit-ready signed latency metrics for routing decisions or compliance purposes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:46:42.416Z","isFirstParty":false}