{"uid":"cap_0_-LQINQvtCV6d8-5OoDe","slug":"quicknode-1f34df38","name":"QuickNode JSON-RPC Proxy — Base Sepolia","description":"JSON-RPC proxy — base-sepolia","url":"https://x402.quicknode.com/base-sepolia/","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_RRN30PVZ9UHVEJAXrWLsI","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 requests to the Base Sepolia testnet, enabling Ethereum-compatible blockchain queries and interactions on the Base L2 test network.","exampleAgentPrompt":"Call eth_getBalance on Base Sepolia testnet for address 0xAbC123... at the latest block — use the QuickNode JSON-RPC proxy.","exampleUseCases":null,"resultDescription":"Returns a standard JSON-RPC 2.0 response object containing the result of the requested method (e.g. block data, balance in wei, transaction receipt, contract return value) or an error object if the call fails.","failureModes":["Invalid JSON-RPC method name returns error code -32601","Malformed params array returns error code -32602","Payment not received or insufficient USDC results in 402 Payment Required","Network unavailable or node sync issues return 503 or timeout","Unsupported method for Base Sepolia returns error"],"whenToPreferThis":"Use this endpoint when you need to interact with the Base Sepolia testnet specifically — ideal for testing Base L2 smart contracts, simulating transactions, or querying testnet state without spending real funds. Prefer this over mainnet endpoints when doing development or QA on Base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:58:00.184Z","isFirstParty":false}