{"uid":"cap_zjo8ItE2Ox6wDG-Z2Div2","slug":"solana-durable-nonce-inspector-948cb86e","name":"Solana Durable Nonce Inspector","description":"Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.","url":"https://signalharness.ai/api/agent/services/solana_durable_nonce_inspect/invoke","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"request_json":{"type":"string","maxLength":65536,"minLength":2}}},"responseSchema":{"type":"json","example":{"replay":false,"result":{"warnings":["Does not query nonce freshness or reserve balance."],"service_id":"solana_durable_nonce_inspect","analysis_json":"{\"advance_first\":false,\"advance_instruction_index\":-1,\"authority\":\"11111111111111111111111111111111\",\"nonce\":\"11111111111111111111111111111111\",\"nonce_matches_blockhash\":false,\"transaction_blockhash\":null,\"warnings\":[\"advance nonce instruction not supplied\"]}","evidence_scope":"caller_supplied_data","analyzed_network":"solana"},"status":"succeeded","receipt":{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","usage":[],"status":"succeeded","network":"eip155:8453","artifacts":[],"endedAtMs":0,"latencyMs":0,"paymentId":"example-payment","receiptId":"example-receipt","requestId":"example-request","serviceId":"solana_durable_nonce_inspect","executionId":"example-execution","startedAtMs":0,"amountAtomic":"15000","resultSha256":"b29cd4ef5dc21593e7b53382c68a452a6188821fe43674bc4036d6b1d8220b23","serviceVersion":"1.0.0","settlementReference":"0x0000000000000000000000000000000000000000000000000000000000000000"},"artifacts":[],"requestId":"example-request","executionId":"example-execution"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_riA1gRxY_WcaHtvoSIhdo","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Analyzes a Solana transaction's durable nonce usage, checking whether the advance-nonce instruction is present, correctly placed, and whether the nonce matches the transaction blockhash.","exampleAgentPrompt":"Can you inspect this Solana transaction JSON and tell me whether the durable nonce is set up correctly — specifically if the advance nonce instruction is present, where it appears, whether the nonce matches the blockhash, and flag any warnings?","exampleUseCases":[{"title":"Debug failing durable nonce transaction","prompt":"I have a Solana transaction that keeps getting rejected and I think it's a durable nonce issue — can you inspect this transaction JSON and tell me if the advance nonce instruction is missing or in the wrong position?"},{"title":"Pre-flight nonce validation before broadcast","prompt":"Before I submit this Solana transaction to the network, can you check that the durable nonce is configured correctly, the authority matches, and the nonce lines up with the blockhash field?"},{"title":"Audit transaction structure for nonce compliance","prompt":"I'm building a Solana wallet and want to verify that the transactions my users generate always have a valid advance nonce instruction in the right place — can you analyze this sample transaction JSON and tell me what warnings come up?"}],"resultDescription":"Returns a structured analysis including: whether the nonce matches the transaction blockhash, the index of the advance nonce instruction (-1 if absent), the nonce authority pubkey, the nonce account pubkey, whether advance-first ordering is satisfied, and an array of warnings (e.g. missing advance nonce instruction). Also indicates the analyzed network (solana) and evidence scope (caller-supplied data).","failureModes":["Malformed or invalid transaction JSON causes parsing failure","Nonce account address is the system default (all zeros) when not properly set","advance_instruction_index returns -1 if no advance nonce instruction is present","Does not query on-chain nonce freshness or reserve balance — warnings included in response","Input JSON exceeding 65536 characters will be rejected","Incomplete transaction structure may result in null blockhash and false nonce match"],"whenToPreferThis":"Use this endpoint when you need to programmatically validate Solana durable nonce transactions before broadcasting, debug nonce-related rejection errors, or audit transaction structure in a CI/automated pipeline. It is purely static analysis on caller-supplied data — it does not make RPC calls to the Solana network, so it is fast and cheap ($0.015 USDC) but cannot verify on-chain nonce state or account balances.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:50:21.280Z","isFirstParty":false}