{"uid":"cap_5_uLhemJHCnbM6Nq3CsFQ","slug":"bitcoin-fee-pulse-address-fingerprint-3981c529","name":"Bitcoin Fee Pulse + Address Fingerprint","description":"Cross-verified: Live Bitcoin mempool congestion from mempool.space fee estimates. Combined with base address balance/activity/contract check.","url":"https://k2so.wrong.systems/api/services/bitcoin-fee-pulse-address-fingerprint?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"":{"type":"string","description":"Composite input parameter"},"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"address":{"type":"string","description":"Composite input parameter"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Bitcoin Fee Pulse + Address Fingerprint paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"score":{"type":"number"},"service":{"type":"string","description":"Service slug"},"summary":{"type":"string"},"evidence":{"type":"object"},"strengths":{"type":"array","items":{"type":"string"}},"confidence":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"riskFactors":{"type":"array","items":{"type":"string"}}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"service":"bitcoin-fee-pulse-address-fingerprint"},"service":"bitcoin-fee-pulse-address-fingerprint","provider":"K-2SO"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.025","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":"$0.025/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.025","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.025","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ce1oO5eicpedLuWzPmvr8","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.025","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns live Bitcoin mempool fee estimates combined with a basic address balance, activity, and contract check for a given Bitcoin address.","exampleAgentPrompt":"What are the current Bitcoin mempool fees and can you also check if this address 1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf Na looks healthy and active?","exampleUseCases":[{"title":"Set optimal Bitcoin transaction fee","prompt":"What's the current Bitcoin mempool congestion like and what fee rate in sat/vbyte should I use to get my transaction confirmed in the next 30 minutes?"},{"title":"Vet a Bitcoin payment counterparty","prompt":"Before I send funds, can you check the Bitcoin address bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh — is it active, does it have a balance, and does it show any risk factors?"},{"title":"Monitor Bitcoin network before large payment","prompt":"I'm about to make a large Bitcoin payment — can you pull the live mempool fee estimates and give me a summary of current network congestion so I know the best time to send?"}],"resultDescription":"Returns a structured JSON object with an ok flag, service slug, score, summary, confidence rating, array of strengths, array of risk factors, evidence object with raw data, and a generatedAt ISO-8601 timestamp. The result combines live mempool fee tiers (slow/medium/fast sat/vbyte) with address-level balance and activity signals.","failureModes":["Mempool.space API unavailable — fee data may be stale or missing","Invalid or malformed Bitcoin address returns an error or empty address result","Network timeout causes partial data return","Address has no on-chain history, yielding low confidence scores","Payment not completed results in 402 response requiring x402 payment"],"whenToPreferThis":"Choose this endpoint when you need both current Bitcoin mempool fee conditions and a quick fingerprint of a specific Bitcoin address in a single call, rather than making two separate API requests. It is ideal for agents that need to vet a payment counterparty while simultaneously checking whether network fees are reasonable before initiating a transaction.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-17T06:59:33.501Z","isFirstParty":false,"canonicalSlug":"bitcoin-fee-pulse-address-fingerprint-3981c529"}