{"uid":"cap_PrfZEZHSVgrXZivNDA14f","slug":"halowerk-marktwerk-gas-cost-estimator-e13e0b25","name":"HALOWERK marktwerk Gas Cost Estimator","description":"HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.","url":"https://markt.netzhandwerker.de/gas","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"chain":{"enum":["ethereum","base"],"type":"string","default":"ethereum","description":"Chain to measure. ethereum or base."},"action":{"enum":["transfer","erc20","swap"],"type":"string","default":"transfer","description":"Which transaction the cost estimate is for: transfer, erc20 or swap."}}},"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_uGBfDL4clsSkvx_WER-DD","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 the current gas cost in USD for a specific transaction type (transfer, ERC-20, or swap) on Ethereum or Base.","exampleAgentPrompt":"What's the current gas cost estimate for a token swap on Ethereum?","exampleUseCases":[{"title":"Pre-trade cost check for DeFi swap","prompt":"Before I execute this token swap on Ethereum, can you tell me what the current gas fee estimate is so I know if it's worth doing right now?"},{"title":"Compare fees across chains","prompt":"I'm about to send an ERC-20 token transfer — what are the current estimated gas costs on Ethereum versus Base so I can pick the cheaper chain?"},{"title":"Budget check for wallet automation","prompt":"My bot is about to do a batch of ETH transfers on Base — what's the current gas cost estimate for a plain transfer so I can decide if the network is cheap enough?"}],"resultDescription":"Returns a current gas cost estimate for the specified transaction type on the chosen chain, expressed in a USD-denominated figure, reflecting live network conditions.","failureModes":["Invalid chain value (not 'ethereum' or 'base') returns a validation error","Invalid action value (not 'transfer', 'erc20', or 'swap') returns a validation error","Payment failure (x402 USDC payment not received) blocks the response","Network congestion or RPC unavailability may return stale or unavailable estimates","Upstream gas oracle downtime may cause errors or null responses"],"whenToPreferThis":"Use this endpoint when you need a quick, paid, on-demand gas cost estimate for a specific transaction type (simple transfer, ERC-20, or swap) on either Ethereum or Base, and you want a USD-denominated figure without running your own RPC node or gas oracle. Prefer this over free public gas trackers when you need programmatic access via a pay-per-call model with no API key setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:33:37.576Z","isFirstParty":false}