{"uid":"cap_Y_R3h9pyZrF2HXWk7p7yj","slug":"quicknode-37ce4eef","name":"QuickNode JSON-RPC Proxy — B3 Mainnet","description":"JSON-RPC proxy — b3-mainnet","url":"https://x402.quicknode.com/b3-mainnet/","method":"POST","headers":{},"bodySchema":{"type":"object","required":["jsonrpc","method"],"properties":{"id":{"type":["number","string"],"description":"Request identifier"},"method":{"type":"string","description":"JSON-RPC method name (e.g., eth_blockNumber, eth_call)"},"params":{"type":"array","description":"Method parameters"},"jsonrpc":{"type":"string","const":"2.0"}}},"responseSchema":{"type":"object","properties":{"id":{"type":["number","string"]},"error":{"type":"object","properties":{"code":{"type":"integer"},"message":{"type":"string"}}},"result":{"description":"RPC result (type varies by method)"},"jsonrpc":{"type":"string","const":"2.0"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"10","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":"$10/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"10","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oLMU-0mSMjGCP54lEbY8h","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"10","costPer":"request","priority":0,"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies JSON-RPC calls to the B3 mainnet blockchain network via QuickNode's infrastructure","exampleAgentPrompt":"Can you call eth_blockNumber on B3 mainnet to get the latest block height?","exampleUseCases":null,"resultDescription":"Returns a standard JSON-RPC 2.0 response object containing the result of the requested method (e.g. block number, transaction data, contract return value) or an error object if the call failed.","failureModes":["Invalid JSON-RPC method name returns error object with code and message","Malformed params array causes parse or invalid params error","Payment failure (insufficient USDC) results in 402 Payment Required","Network congestion or node unavailability may cause timeout or 503","Unsupported method for B3 network returns method not found error"],"whenToPreferThis":"Use this endpoint when you need direct JSON-RPC access to the B3 mainnet blockchain — for reading on-chain state, querying blocks or transactions, calling smart contracts, or broadcasting transactions on B3. Prefer this over generic alternatives when you specifically need B3 mainnet (not testnet) and want QuickNode's reliable node infrastructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:57:32.588Z","isFirstParty":false}