{"uid":"cap_uhJAv6eX8_W4tFWyKX3sm","slug":"blockrun-ai-polygon-json-rpc-gateway-08276ef0","name":"BlockRun.AI Polygon JSON-RPC Gateway","description":"Multi-chain JSON-RPC passthrough fronted by BlockRun, powered by Tatum's gateway across 40 chains (Ethereum, Base, Solana, Polygon, BSC, Arbitrum, Optimism, Avalanche, Bitcoin, Sui, and more). One endpoint, every chain, pay-per-call in USDC, no API key. $0.002 per call (or per element of a JSON-RPC batch). Network: Polygon.","url":"https://blockrun.ai/api/v1/rpc/polygon?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"id":{"type":["string","number"],"description":"JSON-RPC id"},"method":{"type":"string","description":"Chain RPC method, e.g. eth_blockNumber, eth_call, eth_getBalance (EVM) or getSlot, getAccountInfo (Solana)."},"params":{"type":"array","description":"Method-specific params."},"jsonrpc":{"type":"string","description":"\"2.0\""}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_LjR5PblcgdNEhBbI-185M","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Proxies standard Ethereum/EVM JSON-RPC calls to the Polygon network via Tatum's gateway, billed per-call in USDC with no API key required.","exampleAgentPrompt":"Can you check the current block number on Polygon using a JSON-RPC call — use the eth_blockNumber method with no params?","exampleUseCases":[{"title":"Check wallet balance on Polygon","prompt":"Look up the MATIC balance of wallet address 0xAbC123... on the Polygon mainnet using eth_getBalance at the latest block."},{"title":"Read smart contract state","prompt":"Call the balanceOf function on the Polygon ERC-20 contract at 0xDef456... for address 0xAbC123... using eth_call — I need to know how many tokens they hold."},{"title":"Fetch Polygon transaction receipt","prompt":"Get the transaction receipt for tx hash 0x789abc... on Polygon so I can confirm whether the transaction succeeded and what gas was used."}],"resultDescription":"A standard JSON-RPC 2.0 response object containing the result field with the requested on-chain data (block number, balance, call return value, etc.) or an error object 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 -32602 Invalid params","Insufficient USDC balance causes payment failure and request rejection","Network congestion may cause timeout or slow response","Unsupported Polygon-specific methods may return errors from the underlying Tatum gateway"],"whenToPreferThis":"Choose this endpoint when you need keyless, pay-per-call access to the Polygon EVM JSON-RPC without provisioning an API key or committing to a subscription. It is ideal for agents that need occasional or burst Polygon blockchain queries billed in USDC via x402 protocol, especially when a multi-chain gateway (Tatum) reliability is desired behind the scenes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:37:03.696Z","isFirstParty":false,"canonicalSlug":"blockrun-ai-polygon-json-rpc-gateway-08276ef0"}