{"uid":"cap_JUqg40Bib16xb_3WGp4bj","slug":"nodeflare-base-rpc-chain-8453-fb4b94e3","name":"NodeFlare Base RPC (Chain 8453)","description":"Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexing, event queries, and simulation. Simple calls $0.001; heavy calls priced by compute units.","url":"https://rpc.nodeflare.app/base/x402?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"id":{"type":["number","string"]},"method":{"type":"string"},"params":{"type":"array"},"jsonrpc":{"type":"string","const":"2.0"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":{"p10Cents":"0.1000","medianCents":"0.1000","p90Cents":"0.1000","minCents":"0.1000","maxCents":"0.1000","p95Cents":"0.1000","sampleCount":1,"varies":false,"failureChargeRate":1},"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oUi6CIs4LgU6HYtMC6G7Z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Executes JSON-RPC calls against the Base (chain 8453) EVM network via NodeFlare's bare-metal archive nodes, paid per-request in USDC with no account required.","exampleAgentPrompt":"Call eth_getLogs on Base chain to fetch all Transfer events for the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 from block 18000000 to 18001000.","exampleUseCases":[{"title":"Index DeFi events on Base","prompt":"Fetch all Swap events emitted by the Uniswap V3 pool at 0x4C36388bE6F416A29C8d8Eee81C771cE6bE14B5 on Base from block 17000000 to 17005000 using eth_getLogs."},{"title":"Simulate smart contract call","prompt":"Call eth_call on Base to read the balanceOf for wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 against the USDC contract at 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, using the latest block."},{"title":"Debug a reverted transaction","prompt":"Use debug_traceTransaction on Base to trace the transaction 0xabc123...def456 and tell me exactly where and why it reverted, including the call stack."}],"resultDescription":"A standard JSON-RPC 2.0 response object containing the result field populated with blockchain data (block info, logs, call return values, traces, etc.) or an error object with code and message if the call fails. Archive-depth data is available for all historical blocks.","failureModes":["Invalid JSON-RPC method name returns error code -32601","Malformed params array causes -32602 invalid params error","Insufficient USDC balance or payment failure returns 402 Payment Required","Requesting a pruned state on a non-archive range (not applicable here, archive supported)","Rate limits or node unavailability may return 503","Unsupported method on Base (e.g. eth_mining) returns -32601"],"whenToPreferThis":"Choose this endpoint when you need direct, low-level EVM JSON-RPC access to Base (chain 8453) — especially for archive queries, event indexing, transaction simulation, or tracing — without setting up an account or API key. Ideal for AI agents making pay-per-use calls in USDC via x402. Prefer over managed RPC providers when you need debug/trace methods, archive depth, or want to avoid API key management.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:46:18.300Z","isFirstParty":false,"canonicalSlug":"nodeflare-base-rpc-chain-8453-fb4b94e3"}