{"uid":"cap_ix7T10M8qBaUx1Uj4wudN","slug":"quantaflow-x402-api-gateway-alchemy-opbnb-mainnet-a7ff8901","name":"QuantaFlow x402 API Gateway — Alchemy opBNB Mainnet","description":"Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.","url":"https://quanta-roan.vercel.app/api/service/alchemy-opbnb-mainnet?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"body":{"type":"string","description":"Optional JSON body forwarded to POST requests."},"path":{"type":"string","description":"Path below the selected upstream origin."},"query":{"type":"object"},"method":{"enum":["GET","POST"],"type":"string"}}},"responseSchema":{"description":"The upstream response body and content type are passed through after successful payment."},"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_8F5ipyMVBnHeg3z2px_tM","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":"Proxies requests to the Alchemy opBNB Mainnet RPC/API through an x402 micropayment gateway, charging $0.01 USDC per call.","exampleAgentPrompt":"Fetch the latest block number from opBNB mainnet using the Alchemy gateway — just call eth_blockNumber on the mainnet path.","exampleUseCases":[{"title":"Check opBNB wallet balance on-chain","prompt":"Look up the current native token balance for wallet address 0xABC123... on opBNB mainnet through the Alchemy RPC gateway."},{"title":"Retrieve recent opBNB transaction receipt","prompt":"Get the transaction receipt for tx hash 0xDEF456... on opBNB mainnet — use the Alchemy opBNB endpoint to fetch it."},{"title":"Query opBNB smart contract state","prompt":"Call the balanceOf method on the opBNB mainnet smart contract at address 0x789... for wallet 0xABC... using the Alchemy RPC proxy."}],"resultDescription":"The raw upstream response from Alchemy's opBNB Mainnet API is passed through verbatim — typically a JSON-RPC response containing blockchain data such as block details, transaction receipts, account balances, or contract call results. The content type mirrors whatever Alchemy returns.","failureModes":["Payment failure: insufficient USDC balance or invalid x402 payment header returns 402 Payment Required","Invalid path: unrecognized Alchemy API path returns upstream 404 or error","Malformed request body: invalid JSON or unsupported RPC method returns Alchemy error response","Network unavailability: Alchemy or opBNB node downtime causes 502/503 errors","Rate limiting: upstream Alchemy rate limits may cause 429 responses"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go, no-subscription access to opBNB Mainnet blockchain data via Alchemy's RPC infrastructure. Ideal for agents that make infrequent or unpredictable calls to opBNB and want to avoid committing to an Alchemy API key or monthly plan. Best suited for web3 agents already operating in the x402 micropayment ecosystem on BNB's layer-2 network.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T12:35:54.077Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-opbnb-mainnet-a7ff8901"}