{"uid":"cap_3ikYh5k3PiKbCoM4iuPpD","slug":"synapse-api-opbnb-nft-sales-5daea92a","name":"Synapse API — opBNB NFT Sales","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/nft/sales","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"number"},"order":{"enum":["asc","desc"],"type":"string"},"toBlock":{"type":"number"},"fromBlock":{"type":"number"},"contractAddress":{"type":"string"}}},"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__4g1gDh_KydrO89qrxYJ3","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 NFT sales transaction data from the opBNB blockchain, filterable by contract address and block range.","exampleAgentPrompt":"Pull the last 50 NFT sales for contract 0xAbC123... on opBNB, ordered from newest to oldest, covering blocks 1000000 to 1050000.","exampleUseCases":[{"title":"NFT collection sales analytics","prompt":"Get me all NFT sales for contract 0xDe45... on opBNB between blocks 2000000 and 2100000, limited to 100 results in descending order — I want to analyze trading volume trends."},{"title":"Real-time NFT floor price monitoring","prompt":"Fetch the 20 most recent NFT sales for the contract at 0xAbc789... on opBNB, newest first, so I can track what prices things are selling for right now."},{"title":"Historical NFT market research","prompt":"Give me NFT sales data for contract 0xFee321... on opBNB starting from block 1500000 going up to block 1600000 in ascending order, up to 200 records — I'm researching early trading activity for this collection."}],"resultDescription":"Returns a list of NFT sales events from the opBNB blockchain, including transaction details such as sale price, buyer/seller addresses, token IDs, and block numbers, filtered to the specified contract address and block range and paginated by the given limit.","failureModes":["Invalid contract address format returns an error or empty result","fromBlock greater than toBlock yields no results or validation error","Limit value too large may cause timeout or truncated response","opBNB node unavailability causes upstream errors","Block range spanning too many blocks may hit rate or data limits"],"whenToPreferThis":"Use this endpoint when you specifically need NFT sales data from the opBNB (BNB Chain Layer 2) network. Prefer it over generic blockchain explorers when you need programmatic, filtered access by contract address and block range, and when pay-per-call pricing at $0.01 USDC is acceptable for on-demand queries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T13:06:34.183Z","isFirstParty":false}