{"uid":"cap_IaD6J4jzg7-7Ma0WMVNJH","slug":"47620-multichain-gas-price-api-9448cc6b","name":"47620 Multichain Gas Price API","description":"Non-custodial x402 payment gateway on Solana (1% on-chain fee) plus a pay-per-call Solana data API for agents: token price, account balances, tx lookup, trending DEX pairs, network health. No signup, no API key — pay USDC per call.","url":"https://47620.xyz/x/gap-fac/gas-multichain/:chain?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ok":true,"data":{"fetchedAt":"<iso>"},"endpoint":"gas-multichain"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","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":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ecpOtV1VlNE2e66pV9ONX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns current gas price and fee estimates for a specified blockchain network via a pay-per-call x402 USDC payment","exampleAgentPrompt":"What's the current gas price on Polygon right now? I need to know if it's cheap enough to submit my transaction.","exampleUseCases":[{"title":"Pre-transaction gas cost check","prompt":"Before I send this Ethereum transaction, can you check the current gas price so I know roughly what fee I'll pay?"},{"title":"Multichain fee comparison for routing","prompt":"I need to bridge tokens and want the cheapest chain — what's the gas price on Base versus Polygon right now?"},{"title":"DeFi bot transaction timing","prompt":"Check gas on Arbitrum for me — I want to know if fees are low enough to execute my arbitrage trade profitably right now."}],"resultDescription":"Returns a JSON object with ok status, a data object containing the fetched gas/fee data and a fetchedAt ISO timestamp, and an endpoint identifier confirming the gas-multichain lookup.","failureModes":["Unsupported or misspelled chain name returns an error or empty data","Insufficient USDC balance causes x402 payment failure and no data returned","Network RPC unavailability may result in stale or missing gas data","Malformed chain parameter may return a 400-level error"],"whenToPreferThis":"Choose this endpoint when you need current gas price or fee estimates for a specific blockchain network without signing up for an API key, and you want to pay only per call in USDC via x402. Prefer it over subscription-based gas APIs for low-frequency or agent-driven usage where a flat per-call micropayment model is more cost-effective.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-19T00:51:27.395Z","isFirstParty":false,"canonicalSlug":"47620-multichain-gas-price-api-2250bb12"}