{"uid":"cap_rbyk9q3_TbqCvnPcFd6ig","slug":"vehicle-fuel-economy-lookup-f5d37ee5","name":"Vehicle Fuel Economy Lookup","description":"Look up official fuel economy, annual fuel cost, electric range and emissions for a vehicle model year.","url":"https://win.oneshotagent.com/v1/tools/lookup/vehicle-fuel-economy?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"make":{"type":"string","description":"The vehicle make, for example Toyota. 2 to 40 characters."},"model":{"type":"string","description":"The model as the source names it, for example Camry or Camry Hybrid LE. 1 to 60 characters."},"variant":{"type":"string","description":"Case-insensitive text in the option description, for example 4 cyl, 2.5 L or S8; omitted selects the first option. 1 to 60 characters."},"model_year":{"type":"integer","description":"The model year, from 1984 through next calendar year. At least 1984. Model year cannot be later than next year."}}},"responseSchema":{"type":"json","example":{"make":"Toyota","year":2020,"drive":"Front-Wheel Drive","model":"Camry","matched":true,"options":[{"vehicle_id":42011,"description":"Auto (S8), 6 cyl, 3.5 L"},{"vehicle_id":42015,"description":"Auto (S8), 4 cyl, 2.5 L"}],"city_mpg":29,"cylinders":4,"fuel_type":"Regular Gasoline","updated_on":"2019-11-08","vehicle_id":42015,"highway_mpg":41,"combined_mpg":34,"transmission":"Automatic (S8)","vehicle_class":"Midsize Cars","co2_grams_per_mile":264,"fuel_economy_score":8,"displacement_liters":2.5,"fuel_type_secondary":null,"annual_fuel_cost_usd":1900,"electric_range_miles":null,"greenhouse_gas_score":8,"combined_kwh_per_100_miles":null,"five_year_cost_vs_average_usd":2000}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_LWeE13H_DdLBFK3dv-4YE","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":"Look up official EPA fuel economy, annual fuel cost, electric range, and emissions data for a specific vehicle make, model, and year.","exampleAgentPrompt":"What's the official EPA fuel economy and estimated annual fuel cost for a 2020 Toyota Camry with the 4-cylinder 2.5L engine?","exampleUseCases":[{"title":"Car purchase fuel cost comparison","prompt":"I'm deciding between a 2022 Toyota RAV4 and a 2022 Honda CR-V — what are the official combined MPG and annual fuel cost estimates for each so I can compare running costs?"},{"title":"Fleet emissions reporting","prompt":"Pull the official CO2 grams per mile and greenhouse gas score for a 2021 Ford F-150 with the 3.5L V6 engine — I need it for our fleet emissions report."},{"title":"EV range verification","prompt":"What's the official electric range in miles for a 2023 Chevrolet Bolt EV? I want to know if it covers my 60-mile daily commute."}],"resultDescription":"Returns a JSON object with matched vehicle details including city/highway/combined MPG, annual fuel cost in USD, CO2 grams per mile, greenhouse gas and fuel economy scores, electric range (if applicable), fuel type, transmission, engine displacement, cylinders, drive type, vehicle class, and a list of matching trim options with their vehicle IDs.","failureModes":["Vehicle make/model/year not found in EPA database — matched:false returned","Ambiguous model name returns multiple options list without selecting one","Model year outside 1984 to next calendar year range causes validation error","Variant text doesn't match any option description — falls back to first option","Typo in make or model causes no match"],"whenToPreferThis":"Use this endpoint when you need official EPA fuel economy figures, annual fuel cost estimates, or emissions data for a specific vehicle. It is the authoritative source for regulatory-grade MPG, CO2, and greenhouse gas scores tied to a specific make/model/year/trim, and is ideal for purchase decisions, fleet reporting, or environmental comparisons.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-25T12:30:50.152Z","isFirstParty":false,"canonicalSlug":"vehicle-fuel-economy-lookup-f5d37ee5"}