{"uid":"cap_2jfTba90EJJk148vKwcGU","slug":"hearth-evm-gas-price-lookup-1532cae5","name":"Hearth EVM Gas Price Lookup","description":"Web page to clean Markdown for AI agents. Pay per call with x402 (USDC on Base).","url":"https://138-197-15-135.sslip.io/v1/evm/gas?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["queryParams"],"properties":{"queryParams":{"type":"object","required":[],"properties":{"chain":{"type":"string","description":"Chain: base (default), ethereum, arbitrum, optimism"}}}}}}},"responseSchema":{"type":"json","example":{"block":1,"chain":"base","maxFeeGwei":"0.011","baseFeeGwei":"0.005","gasPriceGwei":"0.01","priorityFeeGwei":"0.001","transferCostEth":"0.00000021"}},"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":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ivedp5ue0VN17A1ARIJxh","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current EVM gas price metrics (base fee, priority fee, max fee, transfer cost) for a specified blockchain network","exampleAgentPrompt":"What are the current gas prices on Base — give me the base fee, priority fee, and estimated transfer cost in ETH?","exampleUseCases":[{"title":"Pre-transaction gas check on Base","prompt":"Before I send this USDC transfer, can you check what the current gas price is on Base so I know what fees to expect?"},{"title":"Gas cost comparison across chains","prompt":"What's the current gas price on Arbitrum right now — I want to see the base fee and priority fee in gwei."},{"title":"DeFi bot gas optimization","prompt":"Check the current gas fees on Ethereum for me — I need the max fee per gas and base fee in gwei to decide whether to execute this trade now."}],"resultDescription":"A JSON object containing the current block number, chain name, max fee in gwei, base fee in gwei, gas price in gwei, priority fee in gwei, and estimated ETH cost for a standard transfer on the specified EVM-compatible network.","failureModes":["Invalid chain parameter returns an error or defaults to Base","Network connectivity issues to the target blockchain node may cause stale or unavailable data","Unsupported chain name results in no data returned","High network congestion may cause slight latency in retrieving latest block data"],"whenToPreferThis":"Use this endpoint when you need real-time EVM gas price data for Base, Ethereum, Arbitrum, or Optimism and want a simple, pay-per-call API without managing RPC node subscriptions. Ideal for agents that need to estimate transaction costs before execution or monitor fee conditions across multiple EVM chains.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-30T19:05:15.948Z","isFirstParty":false,"canonicalSlug":"hearth-evm-gas-price-lookup-1532cae5"}