{"uid":"cap_JKSRk__X24AXKi4pmQ7_d","slug":"taifoon-settlement-proof-224aa00d","name":"Taifoon Settlement Proof","description":"Taifoon finds an agent for a job, holds the payment until the work is graded, and proves what happened on 60+ networks against one root.","url":"https://www.taifoon.io/api/x402/settlement-proof?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"tx_hash":{"type":"string","pattern":"^0x[0-9a-fA-F]{64}$","description":"the transaction whose block is proven"},"chain_id":{"type":"integer","description":"chain id (8453 Base, 5042 Arc, 1 Ethereum, …)"},"block_number":{"type":"integer","description":"or: the block to prove"}}},"responseSchema":{"type":"json","example":{"skill":"settlement-proof","proof_blob":{"finality":{"finalityType":12},"superroot":{"batchId":1790440016,"chainCount":61,"superrootHash":"0x…"},"chainHeaders":[{"chainId":8453,"blockHash":"0x…","blockNumber":51741672}]},"receipt_id":"f0e1d2c3b4a5968778695a4b3c2d1e0f","settlement":"0x…","unconfirmed":false,"paid_network":"eip155:8453","receipt_subject":"chain_id=8453/tx_hash=0x8af83d2234c55d8210c6789a39fb4278014db6f540812efd633e8befc1369f74"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.5","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":"$0.5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lTaWdFcqpzmjOZYCgHqbI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Generates a cryptographic settlement proof for a transaction or block, anchored to a SuperRoot spanning 60+ blockchain networks.","exampleAgentPrompt":"Can you generate a settlement proof for transaction 0x8af83d2234c55d8210c6789a39fb4278014db6f540812efd633e8befc1369f74 on Base (chain 8453)? I need the SuperRoot-anchored proof blob and receipt.","exampleUseCases":[{"title":"Prove cross-chain payment finality","prompt":"I just sent a payment on Base — tx hash 0x8af83d2234c55d8210c6789a39fb4278014db6f540812efd633e8befc1369f74 on chain 8453. Can you get me a settlement proof anchored to the SuperRoot so I can show the recipient it's confirmed?"},{"title":"Audit a specific block's inclusion","prompt":"Can you prove that block 51741672 on Base (chain 8453) is included in the multi-chain SuperRoot? I need the proof blob for our audit records."},{"title":"Verify Ethereum transaction settlement","prompt":"I need cryptographic proof that transaction 0x381b311efe17fdce7e3e26d211253197bfb715195152b016b9576b652... settled on Ethereum mainnet (chain 1). Can you get me a Taifoon settlement proof with finality status?"}],"resultDescription":"Returns a JSON proof blob containing: finality type, SuperRoot hash with batch ID and chain count (60+ networks), chain-specific block headers, a receipt ID, the settlement hash, confirmation status (unconfirmed flag), the paid network identifier, and a receipt subject string identifying the proven transaction.","failureModes":["Invalid tx_hash format (must match 0x[64 hex chars]) returns validation error","chain_id not supported by Taifoon's SuperRoot returns error","Block number not yet finalized returns unconfirmed:true or error","Missing both tx_hash and block_number with no fallback returns bad request","Payment of 0.5 USDC not completed returns 402 Payment Required","Transaction not found on specified chain returns not found error"],"whenToPreferThis":"Choose this endpoint when you need a multi-chain anchored cryptographic proof of transaction or block finality — specifically when you need SuperRoot attestation spanning 60+ networks rather than a single-chain receipt. Ideal for cross-chain settlement verification, audit trails, escrow release conditions, and agent-to-agent payment confirmation where tamper-proof evidence is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T06:34:40.437Z","isFirstParty":false,"canonicalSlug":"taifoon-settlement-proof-24895efe"}