{"uid":"cap_g5YEd68Lk5P40IpyvUiM-","slug":"quantaflow-x402-api-gateway-alchemy-bnb-mainnet-92c7cf1b","name":"QuantaFlow x402 API Gateway – Alchemy BNB 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-bnb-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_besHn-OIUFoNPIw95ya4L","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 Alchemy's BNB Chain mainnet node API via x402 micropayment protocol, charging $0.01 USDC per call","exampleAgentPrompt":"Use the Alchemy BNB mainnet gateway to get the latest block number on BNB Chain — route the eth_blockNumber JSON-RPC call through the /api/service/alchemy-bnb-mainnet path.","exampleUseCases":[{"title":"Check wallet token balance on BNB","prompt":"Fetch the BNB Chain mainnet token balance for wallet 0xABC123 using the Alchemy BNB mainnet node — call eth_getBalance at the root path."},{"title":"Read smart contract state on BSC","prompt":"Query the Alchemy BNB mainnet node to call eth_call on smart contract 0xDEF456 with the encoded getReserves() function data so I can see the current liquidity pool reserves."},{"title":"Look up recent transaction receipt","prompt":"Pull the transaction receipt for tx hash 0x789GHI on BNB Chain mainnet from the Alchemy node — use eth_getTransactionReceipt and return the full receipt data."}],"resultDescription":"The raw upstream Alchemy BNB Chain mainnet API response body is passed through after successful x402 micropayment verification — this includes standard JSON-RPC blockchain data such as block info, transaction receipts, account balances, contract call results, and other on-chain data in Alchemy's standard response format.","failureModes":["Insufficient USDC balance or failed x402 payment — payment authorization rejected, request not forwarded","Invalid or malformed JSON-RPC body — upstream Alchemy returns JSON-RPC error","Unsupported RPC method — Alchemy may reject methods not available on BNB mainnet","Incorrect path parameter — upstream routing fails with 404","Alchemy rate limit or node unavailability — upstream 429 or 503 passed through","Network timeout on BNB Chain node — slow or unresponsive upstream"],"whenToPreferThis":"Choose this endpoint when you need pay-per-use access to Alchemy's BNB Chain mainnet node without managing Alchemy API keys or subscriptions. Ideal for agents that need sporadic or low-volume BNB Chain RPC calls billed via x402 USDC micropayments. Prefer this over self-managed Alchemy keys when cost predictability per call ($0.01 USDC) matters or when operating in a wallet-native agent environment. Not suitable for high-frequency or batch RPC workloads where a direct Alchemy subscription would be more economical.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T01:12:02.033Z","isFirstParty":false,"canonicalSlug":"quantaflow-x402-api-gateway-alchemy-bnb-mainnet-92c7cf1b"}