{"uid":"cap_F9grrIxXh1h073fxNwmn8","slug":"nodeflare-arbitrum-one-rpc-chain-42161-8a7910b6","name":"NodeFlare Arbitrum One RPC (chain 42161)","description":"Arbitrum One RPC (chain 42161): 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/arb/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_OEXpFRtlanLfWC51xImpy","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":"Provides full JSON-RPC access to the Arbitrum One network (chain 42161) including archive methods like eth_getLogs, trace, and debug, with pay-per-request USDC billing and no API key required.","exampleAgentPrompt":"Call eth_getLogs on Arbitrum One (chain 42161) for the USDC contract address 0xaf88d065e77c8cC2239327C5EDb3A432268e5831, filtering for Transfer events from block 200000000 to latest.","exampleUseCases":[{"title":"DeFi protocol event indexing","prompt":"Fetch all Transfer events from the GMX token contract on Arbitrum One from block 150000000 to the latest block so I can index recent activity."},{"title":"Smart contract simulation","prompt":"Simulate calling the balanceOf function on the Arbitrum One USDC contract (0xaf88d065e77c8cC2239327C5EDb3A432268e5831) for my wallet address 0xabc123... without broadcasting anything."},{"title":"Archive transaction trace","prompt":"Run a debug trace on Arbitrum One transaction 0xdeadbeef... so I can see exactly which internal calls were made and why it failed."}],"resultDescription":"Returns a standard JSON-RPC 2.0 response object containing a 'result' field with the requested blockchain data (e.g. hex balances, log arrays, block objects, trace arrays, call return values) or an 'error' field with code and message if the request fails.","failureModes":["Invalid JSON-RPC method name returns error code -32601 (method not found)","Malformed params returns error code -32602 (invalid params)","Insufficient USDC payment balance causes HTTP 402 payment required","Block range too large for eth_getLogs may return error or timeout","Calling debug/trace methods on a non-archive block that was pruned returns null or error","Network congestion may increase response latency"],"whenToPreferThis":"Choose this endpoint when you need full archive access to Arbitrum One (chain 42161) including eth_getLogs, trace, and debug methods, without setting up an account or managing API keys — especially useful for AI agents that can pay per request in USDC via the x402 protocol. Prefer over free public RPCs when you need reliability, archive depth, or heavy compute methods.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T12:44:29.466Z","isFirstParty":false,"canonicalSlug":"nodeflare-arbitrum-one-rpc-chain-42161-8a7910b6"}