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FuelEconomy.gov EPA Ratings Lookup
x402
FuelEconomy.gov EPA Ratings Lookup is a paid API for AI agents from api.companyrecords-api.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-24).
Returns EPA fuel economy ratings (combined, city, highway MPG), fuel type, drive type, and CO2 tailpipe emissions for a specific vehicle make, model, and year from FuelEconomy.gov.
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call company registry, government, legal and B2B data tools for AI agents, from official registers and public sources. Payment: x402, USDC on Base, Solana, Arc, Polygon, Arbitrum, Monad, World Chain, Optimism, Avalanche, Celo or Stellar, or RLUSD/XRP on the XRP Ledger. No signup, no API key; a failed call is not charged.
Output
A JSON object containing the queried make, model, and year, plus an array of matching vehicles each with: vehicle ID, city/highway/combined MPG, fuel type (e.g. Regular Gasoline), drive type (e.g. Front-Wheel Drive), transmission, and CO2 tailpipe grams per mile. Source URL and timestamp are also included. Up to 3 vehicles returned per call.
Example use cases
Car purchase fuel efficiency research
“I'm thinking about buying a 2024 Honda CR-V — can you pull the EPA fuel economy numbers for it, including city and highway MPG and how much CO2 it puts out per mile?”
Fleet vehicle emissions audit
“I need the official EPA tailpipe CO2 grams per mile and combined MPG for a 2023 Ford Explorer for our company fleet emissions report.”
Model year trim comparison
“What are all the EPA-rated trim options for a 2024 Chevrolet Equinox, including their MPG and drive types?”
Technical details
Endpoint
GEThttps://api.companyrecords-api.workers.dev/api/gov/fueleconomy-gov?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need official US EPA fuel economy data (city, highway, combined MPG) and CO2 tailpipe emissions for a specific vehicle by year, make, and model. It is the authoritative source for government-certified fuel economy figures, making it ideal for vehicle research, fleet management, emissions reporting, and consumer comparison tools. Prefer this over web scraping or third-party automotive APIs when accuracy and official government data are required.
Side effects
- No matching vehicle found for the given year/make/model combination — returns empty vehicles array
- Invalid or unsupported model year returns an error or empty result
- Misspelled make or model name results in no matches
- Upstream FuelEconomy.gov API unavailable causes request failure
- Rate limiting or payment failure ($0.002 USDC per call) if x402 payment is not properly handled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"make": "Toyota",
"year": 2024,
"model": "Camry",
"source": "https://www.fueleconomy.gov/ws/rest/vehicle/menu/options",
"vehicles": [
{
"id": 47085,
"make": "Toyota",
"year": 2024,
"label": "Auto (S8), 6 cyl, 3.5 L",
"model": "Camry",
"mpgCity": 22,
"fuelType": "Regular Gasoline",
"driveType": "Front-Wheel Drive",
"mpgHighway": 33,
"mpgCombined": 26,
"transmission": "Automatic (S8)",
"co2GramsPerMile": 338
}
],
"checkedAt": "2026-10-23T09:37:15.357Z"
}
}Tags
x402
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