{"uid":"cap_xZF-WuD-HWNG3BS-VBhMc","slug":"free-asset-radar-x402-evm-gas-estimator-14a06a90","name":"Free Asset Radar x402 – EVM Gas Estimator","description":"Stable edge-hosted x402 utilities for autonomous agents.","url":"https://free-asset-radar-x402.besenok2018.workers.dev/api/x402/evm-estimate-gas?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"network":"base","gasPriceWei":"5000000","estimatedGas":"21000","estimatedFeeWei":"105000000000"}},"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_3MbCE0r4Lad_y1J8Hudrd","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":"Estimates EVM transaction gas price, gas units, and total fee in wei for a given network","exampleAgentPrompt":"What's the current estimated gas cost in wei for a standard transaction on the Base network right now?","exampleUseCases":[{"title":"Pre-flight fee check before on-chain payment","prompt":"Before I submit this on-chain payment, can you estimate the current gas fee in wei on Base so I know if my budget is sufficient?"},{"title":"Agent autonomy budget enforcement","prompt":"My autonomous agent needs to know if the estimated transaction fee on Base is under 200000000000 wei before it proceeds — can you check the current gas estimate?"},{"title":"Gas cost monitoring for DeFi workflow","prompt":"Fetch the latest gas price and estimated total fee in wei on the Base network so I can decide whether to execute this DeFi trade now or wait for cheaper fees."}],"resultDescription":"Returns a JSON object with the network name (e.g. 'base'), current gas price in wei (gasPriceWei), estimated gas units (estimatedGas), and the total estimated transaction fee in wei (estimatedFeeWei).","failureModes":["Unsupported or unrecognized network identifier returns an error","Network RPC unavailable or congested may return stale or no data","Missing required query parameters results in a validation error","Rate limiting or payment failure (x402) blocks the request"],"whenToPreferThis":"Use this endpoint when an autonomous agent or application needs a fast, edge-hosted EVM gas estimate — particularly on Base — without running its own RPC node. Ideal for pre-flight cost checks before submitting transactions, enforcing budget caps in agent workflows, or deciding whether current gas conditions make a transaction economical.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:35:18.418Z","isFirstParty":false,"canonicalSlug":"free-asset-radar-x402-evm-gas-estimator-14a06a90"}