{"uid":"cap_xu74_r3zZoXMZqPsFsylX","slug":"polyform-vehicle-fuel-economy-lookup-528073d9","name":"Polyform Vehicle Fuel Economy Lookup","description":"EPA MPG figures and estimated annual fuel cost for a year/make/model. Source: fueleconomy.gov. JSON.","url":"https://polyform.polyform-org.workers.dev/v1/vehicle/fuel-economy","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"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_xUCEKexfhGa53EAkcQdxX","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":"Returns EPA MPG figures and estimated annual fuel cost for a specific vehicle year, make, and model from fueleconomy.gov","exampleAgentPrompt":"What are the EPA city, highway, and combined MPG figures and the estimated annual fuel cost for a 2022 Toyota RAV4?","exampleUseCases":[{"title":"Car purchase fuel cost comparison","prompt":"I'm considering buying a 2023 Honda CR-V — can you pull the official EPA MPG numbers and estimated annual fuel cost for it so I can factor that into my decision?"},{"title":"Fleet vehicle operating cost estimation","prompt":"What are the EPA fuel economy figures and yearly fuel cost estimate for a 2022 Ford Transit cargo van? I need it for budgeting our delivery fleet expenses."},{"title":"Older vehicle efficiency audit","prompt":"Can you look up the EPA MPG ratings and annual fuel cost for a 2015 Subaru Forester? I want to see how much I'm spending on gas compared to a newer model."}],"resultDescription":"A JSON object containing EPA official fuel economy data for the requested vehicle: city MPG, highway MPG, combined MPG, and an estimated annual fuel cost in USD, sourced from fueleconomy.gov.","failureModes":["Vehicle year/make/model combination not found in fueleconomy.gov database — returns empty or error response","Ambiguous model name matching multiple trims — may return multiple results or require more specific input","Very new or prototype vehicles may not yet have EPA ratings in the database","Older pre-1984 vehicles may have incomplete or missing data"],"whenToPreferThis":"Use this endpoint when you need official US government EPA MPG figures and standardized annual fuel cost estimates for a specific passenger vehicle. Prefer this over general web search when you need structured, machine-readable fuel economy data from fueleconomy.gov that can be compared programmatically across vehicles.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:32:05.131Z","isFirstParty":false}