{"uid":"cap_Ls5xJ_r7GmxEmENFzrrzG","slug":"forgemesh-car-mpg-lookup-acdb335e","name":"ForgeMesh Car MPG Lookup","description":"MPG lookup for any US-market car since 1984: official test-cycle city, highway, and combined miles per gallon plus fuel type and CO2 per mile, by year/make/model or VIN. Multiple engine/transmission variants are returned with ids so you can query the exact one. Clean structured JSON.","url":"https://x402.forgemesh.io/car-mpg-lookup?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"vin":{"type":"string","description":"VIN — decoded automatically (alternative to make/model/model_year)"},"make":{"type":"string","description":"e.g. Honda"},"model":{"type":"string","description":"e.g. Accord"},"model_year":{"type":"string","description":"4-digit year, 1984+"},"vehicle_id":{"type":"integer","description":"exact variant id from other_variants"}}},"responseSchema":{"type":"json","example":{"offers":{"note":"Our data above is free public NHTSA/EPA data for the model year. Whether THIS VIN was wrecked, flooded, rolled back or branded salvage lives in licensed title databases; these partners sell that per VIN.","disclosure":"Affiliate links: they fund the free data; the price is the same for you.","history_reports":[{"url":"https://forgemesh.io/go/epicvin","adds":"title brands, accidents, odometer readings, prior sales","label":"EpicVIN vehicle history report","partner":"epicvin","pricing":"per report"},{"url":"https://forgemesh.io/go/dvh","adds":"title brands, accident and damage records, odometer readings, prior sales","label":"Detailed Vehicle History report (10% off)","partner":"dvh","pricing":"per report, coupon applied"}]},"attribution":"US DOE/EPA fuel economy database (public domain)","fuel_economy":{"city_mpg":26,"fuel_type":"Regular","highway_mpg":35,"combined_mpg":29,"annual_fuel_cost_usd":1600,"co2_tailpipe_g_per_mi":302},"matched_variant":{"vehicle_id":42069,"description":"2020 Honda Accord — Man 6-spd 1.5L"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_P-q5zMQO6LhNLvA2hNbpe","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns official EPA fuel economy data (city, highway, combined MPG, fuel type, CO2/mile) for any US-market vehicle since 1984, by year/make/model or VIN, with all engine/transmission variants.","exampleAgentPrompt":"What's the official EPA city, highway, and combined MPG for a 2019 Honda Accord — show me all the engine and transmission variants available.","exampleUseCases":[{"title":"Pre-purchase fuel cost research","prompt":"I'm thinking about buying a used 2017 Toyota Camry — what are the official EPA city and highway MPG figures for it, and are there different engine options I should know about?"},{"title":"Fleet emissions reporting","prompt":"I need the CO2 per mile and fuel type for a 2020 Ford F-150 with VIN 1FTEW1EP9LKD12345 so I can include it in our fleet emissions report."},{"title":"Car comparison for commuters","prompt":"Can you look up the combined MPG for both a 2021 Honda Civic and a 2021 Mazda3 so I can compare how fuel-efficient they are for my daily commute?"}],"resultDescription":"A structured JSON response listing all engine/transmission variants for the queried vehicle, each with a unique vehicle_id and official EPA test-cycle city MPG, highway MPG, combined MPG, fuel type, and CO2 emissions per mile. Multiple variants allow precise selection of the exact configuration.","failureModes":["Vehicle not found for given make/model/year combination — no results returned","Invalid or malformed VIN — decoding fails or returns error","Model year before 1984 — outside supported range","Ambiguous model name matching multiple makes — requires more specific input","Invalid vehicle_id provided — returns error or empty result"],"whenToPreferThis":"Use this endpoint when you need official EPA fuel economy figures (city/highway/combined MPG), fuel type, or CO2 emissions data for any US-market vehicle from 1984 onward. It supports both VIN-based lookup (for exact vehicle identification) and year/make/model queries, and returns all engine/transmission variants with IDs for precise filtering. Prefer this over generic car data APIs when EPA test-cycle accuracy and CO2 data are required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-29T07:09:45.270Z","isFirstParty":false,"canonicalSlug":"forgemesh-car-mpg-lookup-acdb335e"}