{"uid":"cap_5nF1w4lK0D7dT3rdZH1A4","slug":"paylyte-bitcoin-fee-rate-forecast-29d6ba01","name":"Paylyte Bitcoin Fee Rate Forecast","description":"Median fee rate forecast for a near-future block, committed as a Proof of Outcome claim.","url":"https://api.paylyte.ai/v1/data/fees/forecast?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["product","tier","forecast","proofOfOutcome","basis","source"],"properties":{"tier":{"type":"string"},"basis":{"type":"object"},"source":{"type":"string"},"product":{"type":"string"},"forecast":{"type":"object"},"proofOfOutcome":{"type":"object"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0RXAmQ7jjT_fWwz9HlHN4","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a median fee rate forecast for a near-future Bitcoin block, committed as a cryptographically verifiable Proof of Outcome claim.","exampleAgentPrompt":"What's the forecasted median Bitcoin fee rate for the next block, and can I get that with a Proof of Outcome attestation so I can verify it later?","exampleUseCases":[{"title":"Optimal fee selection for Bitcoin wallet","prompt":"What median fee rate should I use for my Bitcoin transaction to get confirmed in the next block? Give me the Paylyte forecast with its proof so I can trust the number."},{"title":"Automated payment processor fee calibration","prompt":"Fetch the current Bitcoin block fee forecast with a Proof of Outcome claim so our payment system can automatically set the right sat/vbyte rate before broadcasting transactions."},{"title":"Auditable fee data for compliance reporting","prompt":"Get me a verifiable Bitcoin fee rate forecast for the upcoming block — I need the Proof of Outcome commitment so we can include it in our audit trail for this transaction batch."}],"resultDescription":"Returns a structured JSON object containing the product name, fee tier label, a forecast object with the median fee rate for the near-future block, a Proof of Outcome cryptographic commitment, the basis data underlying the forecast, and the source of the data. The Proof of Outcome allows downstream verification that the forecast was committed before block confirmation.","failureModes":["Payment not fulfilled (x402 protocol failure) — 402 Payment Required response","Mempool data temporarily unavailable — may return an error or stale forecast","Network connectivity issues to upstream fee data source — service may be degraded","Invalid or malformed GET request — 400 Bad Request","Rate limiting or quota exceeded — 429 Too Many Requests"],"whenToPreferThis":"Choose this endpoint when you need a Bitcoin fee rate forecast that is not just a raw estimate but comes with a cryptographic Proof of Outcome commitment — making it auditable and verifiable after the fact. Ideal for automated payment pipelines, compliance-sensitive workflows, or any application where fee data integrity must be provable. Prefer this over generic mempool APIs when verifiable attestation of the forecast is a requirement.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T19:04:10.745Z","isFirstParty":false,"canonicalSlug":"paylyte-bitcoin-fee-rate-forecast-29d6ba01"}