{"uid":"cap_HPxPtHspAPe6yRM9xJ2pZ","slug":"defi-hugen-tokyo-cb10cc84","name":"defi.hugen.tokyo Gas Prices","description":"Real-time gas prices across multiple EVM chains in one batch request — standard, fast, and instant tiers. No per-chain API setup needed. Accepts USDC payments on Base and Solana","url":"https://defi.hugen.tokyo/defi/gas","method":"GET","headers":{},"bodySchema":{"properties":{"input":{"required":["method"]}}},"responseSchema":null,"example":{"request":{"chains":"ethereum,polygon,arbitrum,optimism,base"},"response":{"1":{"fast":206301092,"fastest":1129677970,"standard":137102507,"lastUpdated":1781229480},"10":{"fast":1322,"fastest":10744,"standard":333,"lastUpdated":1781229480},"14":{"fast":50580000,"fastest":90000000,"standard":11160000,"lastUpdated":1781229482},"25":{"fast":568125000000,"fastest":568125000000,"standard":380750000000,"lastUpdated":1781229480},"30":{"fast":27780000,"fastest":28730000,"standard":26830000,"lastUpdated":1781229482},"40":{"fast":6303154456268,"fastest":7878943070336,"standard":5252628713557,"lastUpdated":1781229480},"50":{"fast":18000000000,"fastest":22500000000,"standard":15000000000,"lastUpdated":1781229480},"56":{"fast":50001000,"fastest":60000000,"standard":50000001,"lastUpdated":1781229480},"88":{"fast":300000000,"fastest":375000000,"standard":250000000,"lastUpdated":1781229480},"100":{"fast":710000000,"fastest":710000000,"standard":70000000,"lastUpdated":1781229480},"122":{"fast":20000000000,"fastest":28000000000,"standard":20000000000,"lastUpdated":1781229480},"130":{"fast":772100,"fastest":846800,"standard":697400,"lastUpdated":1781229482},"137":{"fast":468259378300,"fastest":554552800853,"standard":433268923627,"lastUpdated":1781229480},"143":{"fast":157300000000,"fastest":187600000000,"standard":127000000000,"lastUpdated":1781229483},"146":{"fast":76500000000,"fastest":83000000000,"standard":70000000000,"lastUpdated":1781229481},"196":{"fast":25200000,"fastest":31500000,"standard":21000000,"lastUpdated":1781229480},"204":{"fast":1200000,"fastest":1500000,"standard":1000000,"lastUpdated":1781229480},"232":{"fast":4832000000,"fastest":5246000000,"standard":4418000000,"lastUpdated":1781229483},"252":{"fast":1200305,"fastest":1500381,"standard":1000254,"lastUpdated":1781229480},"288":{"fast":1200302,"fastest":1500378,"standard":1000252,"lastUpdated":1781229480},"324":{"fast":92480000,"fastest":115080000,"standard":69880000,"lastUpdated":1781229480},"480":{"fast":1800000,"fastest":2250000,"standard":1500000,"lastUpdated":1781229480},"747":{"fast":19245600000,"fastest":24057000000,"standard":16038000000,"lastUpdated":1781229480},"988":{"fast":1356000000,"fastest":1487000000,"standard":1225000000,"lastUpdated":1781229484},"999":{"fast":651200000,"fastest":977500000,"standard":324900000,"lastUpdated":1781229482},"1088":{"fast":23730000000,"fastest":23730000000,"standard":23730000000,"lastUpdated":1781229482},"1135":{"fast":1201218,"fastest":1501523,"standard":1001015,"lastUpdated":1781229480},"1284":{"fast":37500000000,"fastest":46875000000,"standard":31250000000,"lastUpdated":1781229480},"1329":{"fast":66000000000,"fastest":82500000000,"standard":55000000000,"lastUpdated":1781229480},"1337":{"fast":12000000,"fastest":15000000,"standard":10000000,"lastUpdated":0},"1480":{"fast":24377789827,"fastest":30472237284,"standard":20314824856,"lastUpdated":1781229480},"1625":{"fast":2160000000000,"fastest":2700000000000,"standard":1800000000000,"lastUpdated":1781229480},"1672":{"fast":12000000000,"fastest":15000000000,"standard":10000000000,"lastUpdated":1781229480},"1868":{"fast":879,"fastest":964,"standard":794,"lastUpdated":1781229481},"1923":{"fast":394,"fastest":432,"standard":356,"lastUpdated":1781229483},"2020":{"fast":24690000000,"fastest":25570000000,"standard":23810000000,"lastUpdated":1781229482},"2741":{"fast":54300000,"fastest":67875000,"standard":45250000,"lastUpdated":1781229480},"2818":{"fast":1781000,"fastest":1978000,"standard":1584000,"lastUpdated":1781229484},"3637":{"fast":958100,"fastest":1023700,"standard":892500,"lastUpdated":1781229484},"4217":{"fast":24000000000,"fastest":30000000000,"standard":20000000000,"lastUpdated":1781229480},"4326":{"fast":1200000,"fastest":1500000,"standard":1000000,"lastUpdated":1781229480},"5000":{"fast":90700000000,"fastest":101680000000,"standard":79720000000,"lastUpdated":1781229483},"5031":{"fast":7200000000,"fastest":9000000000,"standard":6000000000,"lastUpdated":1781229480},"5042":{"fast":30000000000,"fastest":37500000000,"standard":25000000000,"lastUpdated":1781229480},"8217":{"fast":34560000000,"fastest":35740000000,"standard":33380000000,"lastUpdated":1781229481},"8453":{"fast":6000000,"fastest":6136073,"standard":6000000,"lastUpdated":1781229480},"9745":{"fast":1800000000,"fastest":2000000000,"standard":1600000000,"lastUpdated":1781229483},"13371":{"fast":13200000059,"fastest":16500000074,"standard":11000000049,"lastUpdated":1781229480},"16661":{"fast":4000000000,"fastest":4000000000,"standard":4000000000,"lastUpdated":1781229484},"33139":{"fast":120100000000,"fastest":129000000000,"standard":111200000000,"lastUpdated":1781229483},"34443":{"fast":410,"fastest":448,"standard":372,"lastUpdated":1781229482},"42161":{"fast":30072000,"fastest":3228450257826,"standard":20066000,"lastUpdated":1781229480},"42170":{"fast":24000000,"fastest":30000000,"standard":20000000,"lastUpdated":1781229480},"42220":{"fast":202520000000,"fastest":202530000000,"standard":202510000000,"lastUpdated":1781229480},"42793":{"fast":1200000000,"fastest":1500000000,"standard":1000000000,"lastUpdated":1781229480},"43111":{"fast":3000000,"fastest":4800000,"standard":1200000,"lastUpdated":1781229484},"43114":{"fast":9411996,"fastest":27806554,"standard":8594111,"lastUpdated":1781229480},"50104":{"fast":17440000000000,"fastest":18940000000000,"standard":15940000000000,"lastUpdated":1781229484},"55244":{"fast":12000000,"fastest":15000000,"standard":10000000,"lastUpdated":1781229480},"57073":{"fast":1050000,"fastest":1100000,"standard":1000000,"lastUpdated":1781229482},"59144":{"fast":83810000,"fastest":88940000,"standard":78680000,"lastUpdated":1781229481},"60808":{"fast":1200000,"fastest":1200000,"standard":1200000,"lastUpdated":1781229483},"80094":{"fast":11352,"fastest":14190,"standard":9460,"lastUpdated":1781229480},"81457":{"fast":293,"fastest":628,"standard":293,"lastUpdated":1781229480},"84532":{"fast":7200000,"fastest":9000000,"standard":6000000,"lastUpdated":1781229480},"98866":{"fast":1181000000000,"fastest":1268000000000,"standard":1094000000000,"lastUpdated":1781229483},"167000":{"fast":26820000,"fastest":42260000,"standard":11380000,"lastUpdated":1781229481},"421614":{"fast":24451200,"fastest":30564000,"standard":20376000,"lastUpdated":1781229480},"534352":{"fast":187000,"fastest":202800,"standard":171200,"lastUpdated":1781229481},"747474":{"fast":9897000,"fastest":16400000,"standard":3394000,"lastUpdated":1781229483},"5042002":{"fast":24004516486,"fastest":30005645607,"standard":20003763738,"lastUpdated":1781229480},"5734951":{"fast":1200000,"fastest":1500000,"standard":1000000,"lastUpdated":1781229480},"11155420":{"fast":1200300,"fastest":1500375,"standard":1000250,"lastUpdated":1781229480},"21000000":{"fast":600000,"fastest":750000,"standard":500000,"lastUpdated":1781229480},"728126428":{"fast":100,"fastest":100,"standard":100,"lastUpdated":1781229480},"20000000000001":{"fast":7.5,"fastest":10,"standard":5,"lastUpdated":1781229480},"1021111031099710":{"fast":1,"fastest":1,"standard":1,"lastUpdated":0},"1151111081099710":{"fast":1,"fastest":1,"standard":1,"lastUpdated":0},"9270000000000000":{"fast":100,"fastest":100,"standard":100,"lastUpdated":1781229480}}},"exampleRequest":{"chains":"ethereum,polygon,arbitrum,optimism,base"},"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_vl9xYEvxepiyyH6g14-gs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time gas prices across multiple EVM chains in a single batch request, providing standard, fast, and instant speed tiers for each chain.","exampleAgentPrompt":"What are the current standard, fast, and instant gas prices across all major EVM chains — I want to pick the cheapest network for my transaction right now.","exampleUseCases":null,"resultDescription":"A batch response containing real-time gas price tiers (standard, fast, instant) for multiple EVM-compatible chains, allowing the caller to compare costs across networks without querying each chain individually.","failureModes":["Payment not provided or insufficient — returns 402 Payment Required","Chain data temporarily unavailable — partial response or 503","Invalid request format — 400 Bad Request","Rate limiting if payment not processed correctly"],"whenToPreferThis":"Use this endpoint when you need gas prices for multiple EVM chains simultaneously and want to avoid setting up per-chain RPC connections or separate API keys. Ideal for transaction cost estimation, cross-chain routing decisions, or monitoring gas spikes across networks in a single cheap call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:40:10.456Z","isFirstParty":false}