{"uid":"cap_0Xe09suS8AiAo75aE6uj0","slug":"gas-oracle-cheapest-chain-ranking-by-usd-transaction-cost-762f29aa","name":"Gas Oracle: Cheapest-Chain Ranking by USD Transaction Cost","description":"Cheapest-chain ranking: all supported chains by all-in USD tx cost","url":"https://x402.professorsausages.com/gas-oracle/compare","method":"GET","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object"},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_G926sv9l6HMFUb-lVS8zQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns all supported blockchain networks ranked by all-in USD transaction cost, identifying the cheapest chain and potential savings versus Ethereum.","exampleAgentPrompt":"Which blockchain is the cheapest right now for submitting a transaction? Give me a full ranking of all supported chains by all-in USD cost and tell me how much I'd save compared to Ethereum mainnet.","exampleUseCases":null,"resultDescription":"Returns a ranked array of all supported chains sorted by all-in USD transaction cost, the name of the cheapest chain, the gas used, transaction speed, transaction type, savings in USD versus Ethereum, a timestamp of when data was fetched, and a list of any degraded (unavailable or stale) chains.","failureModes":["Gas oracle data unavailable for one or more chains — those chains appear in the 'degraded' array with reason details","All chains degraded — ranking may be empty or incomplete","Payment not received — 402 response requiring x402 USDC micropayment","Stale data if underlying gas feeds are lagging — check fetchedAt timestamp","Network timeout from upstream RPC providers"],"whenToPreferThis":"Use this endpoint when you need to compare transaction costs across multiple chains simultaneously to select the most cost-efficient network. Prefer this over the single-chain gas endpoint when the goal is cross-chain optimization or routing decisions rather than fetching bid-ready fee parameters for a specific chain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T19:00:29.984Z","isFirstParty":false}