{"uid":"cap__ETzCOlMkYMqvyGl_d2LQ","slug":"bitcoin-mempool-size-and-backlog-dec19269","name":"Bitcoin Mempool Size and Backlog","description":"Bitcoin mempool size and backlog — Genesis402 / UnyKorn Operator Network","url":"https://twin.unykorn.org/btc-mempool?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"params":{"type":"object","properties":{}}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"btc-mempool","receipt":{"tx_hash":"0x<64hex>","amount_usd":0.002,"receipt_id":"g402-<16hex>"},"generated_at":"<iso8601>"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_W_Yz7Z08xX2-FXQd3tte-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the current Bitcoin mempool size and transaction backlog, including a payment receipt for the x402 micropayment.","exampleAgentPrompt":"How congested is the Bitcoin network right now? Give me the current mempool size and backlog so I can decide whether to send a transaction.","exampleUseCases":[{"title":"Pre-transaction network check","prompt":"Before I send this Bitcoin payment, can you check how backed up the mempool is right now so I know if I should set a higher fee?"},{"title":"Automated fee strategy trigger","prompt":"Check the Bitcoin mempool backlog and tell me if congestion is high enough that I should delay my transaction batch until it clears."},{"title":"Network health dashboard update","prompt":"Pull the latest Bitcoin mempool size and backlog data for my crypto dashboard — I want to show users real-time network congestion status."}],"resultDescription":"Returns a JSON object with 'ok' status, a type field ('btc-mempool'), the mempool data (size and backlog), a timestamp ('generated_at' in ISO 8601), and a payment receipt containing the transaction hash, USD amount charged, and a unique receipt ID.","failureModes":["Network or upstream Bitcoin node unavailable — returns error or non-ok response","Payment failure via x402 micropayment protocol — call may not proceed without valid payment","Stale data if the upstream mempool source is lagging","Malformed response if the Bitcoin node is syncing or unreachable"],"whenToPreferThis":"Choose this endpoint when you need a quick, low-cost snapshot of Bitcoin mempool congestion, especially in an agentic workflow that pays per-call via x402 micropayments. Prefer this over running your own Bitcoin node query when you want a hosted, no-setup solution for mempool monitoring or fee estimation heuristics.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-01T00:35:10.418Z","isFirstParty":false,"canonicalSlug":"bitcoin-mempool-size-and-backlog-dec19269"}