{"uid":"cap_XV2cdh-AUaDDswFvQzEPw","slug":"nodeflare-polygon-pos-rpc-chain-137-81fdfb16","name":"NodeFlare Polygon PoS RPC (Chain 137)","description":"Polygon PoS RPC (chain 137): 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/polygon/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_4H1YIy-6G8J_51AXi5Pwe","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 any Ethereum JSON-RPC method against Polygon PoS (chain 137) via NodeFlare's bare-metal archive nodes, billed per-request in USDC with no API key required.","exampleAgentPrompt":"Call eth_getLogs on Polygon mainnet (chain 137) to fetch all Transfer events from the USDC contract at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 between block 50000000 and 50001000.","exampleUseCases":[{"title":"Index DeFi events on Polygon","prompt":"Fetch all Swap events emitted by the QuickSwap router on Polygon between blocks 55000000 and 55005000 — I need the raw log data including topics and transaction hashes."},{"title":"Simulate contract call before sending","prompt":"Run eth_call on Polygon mainnet to simulate calling the balanceOf function for wallet 0xAbCd...1234 on the USDT contract at 0xc2132D05D31c914a87C6611C10748AEb04B58e8F — I want to know the result before broadcasting anything."},{"title":"Debug a reverted Polygon transaction","prompt":"Use trace_transaction on Polygon to debug why the transaction 0xdeadbeef...cafe reverted — I need the full execution trace so I can see exactly where it failed."}],"resultDescription":"A standard JSON-RPC 2.0 response object containing either a 'result' field with the method's return value (e.g. hex-encoded data, log arrays, block objects, trace frames) or an 'error' field with code and message if the call failed.","failureModes":["Invalid JSON-RPC method name returns error code -32601 (method not found)","Malformed params array returns error code -32602 (invalid params)","Requesting a block range too large for eth_getLogs may return a range-limit error","Insufficient USDC balance causes payment failure before the RPC call is executed","Network congestion on Polygon can cause occasional timeouts on heavy archive queries","Trace/debug methods on very old blocks may time out if compute units exceed limits"],"whenToPreferThis":"Choose this endpoint when you need to query Polygon PoS (chain 137) specifically and want archive depth (eth_getLogs, trace, debug) without managing API keys or subscriptions. Ideal for AI agents that pay per-call via x402/USDC rather than maintaining a monthly plan. Prefer this over generic RPC providers when you need trace and debug methods, event indexing across large block ranges, or contract simulation on Polygon archive state.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T00:47:27.351Z","isFirstParty":false,"canonicalSlug":"nodeflare-polygon-pos-rpc-chain-137-81fdfb16"}