{"uid":"cap_lNl1gw-wToQpfCv6X9sdQ","slug":"synapse-api-opbnb-transaction-history-82df483e","name":"Synapse API — opBNB Transaction History","description":"High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.","url":"https://synapse-api-brown.vercel.app/api/opbnb/tx/history","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"order":{"enum":["asc","desc"],"type":"string"},"pageKey":{"type":"string"},"toBlock":{"type":"string"},"category":{"type":"array","items":{"type":"string"}},"maxCount":{"type":"number"},"fromBlock":{"type":"string"},"toAddress":{"type":"string"},"fromAddress":{"type":"string"},"withMetadata":{"type":"boolean"},"excludeZeroValue":{"type":"boolean"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_OlM8-6WKpm1Idgl4q5jow","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Retrieves paginated transaction history for addresses on the opBNB blockchain network","exampleAgentPrompt":"Pull the last 25 opBNB transactions sent from wallet 0xABC...123, sorted newest first, and include metadata — skip any zero-value transfers.","exampleUseCases":[{"title":"Wallet activity audit for compliance","prompt":"Show me all transactions from opBNB address 0xDEF...456 between block 1000000 and 2000000, sorted ascending, with metadata included so I can audit the full activity trail."},{"title":"Incoming payment monitoring for a dApp","prompt":"Fetch the most recent 50 incoming transactions to my opBNB contract address 0x789...ABC, newest first, and exclude any zero-value ones so I only see real payments."},{"title":"Portfolio history for tax reporting","prompt":"Get the complete transaction history for opBNB wallet 0x111...222, all categories, sorted ascending from the earliest block, with metadata so I can calculate gains and losses for tax reporting."}],"resultDescription":"Returns a list of transaction records on the opBNB network matching the specified filters, including transaction hashes, block numbers, from/to addresses, values, and optional metadata. Supports pagination via pageKey for large result sets.","failureModes":["Invalid or malformed address returns an error or empty result","Block range out of bounds or toBlock before fromBlock causes an error","Unsupported category value returns a validation error","Invalid pageKey causes pagination failure or empty response","Payment not included or insufficient triggers a 402 Payment Required response","Rate limiting or network congestion may cause timeouts"],"whenToPreferThis":"Choose this endpoint when you need historical transaction data specifically on the opBNB (BNB Layer 2) network, with fine-grained filtering by address, block range, category, and sort order. It supports pagination for large datasets and optional metadata enrichment. Prefer this over generic blockchain explorers when programmatic, pay-per-call access is needed within an automated agent workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:12:22.845Z","isFirstParty":false}