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ForgeMesh Vehicle Fuel Economy
x402
ForgeMesh Vehicle Fuel Economy is a paid API for AI agents from x402.forgemesh.io, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Looks up official US EPA fuel-economy data (city/highway/combined MPG, fuel type, annual fuel cost, CO2 emissions, greenhouse-gas score) for any US light-duty vehicle from 1984 onward by VIN, year/make/model, or variant ID.
Price / call$0.005
Success—
StatusUnknown
How this service works
Official fuel-economy lookup for US light-duty vehicles back to 1984: city, highway, and combined MPG, fuel type, estimated annual fuel cost, tailpipe CO2 grams per mile, and greenhouse-gas score — by year/make/model, VIN, or exact variant id. Sibling engine/transmission variants are listed so agents can price the exact configuration. For cost-of-ownership, shopping, and fleet agents.
Output
Returns city, highway, and combined MPG ratings, fuel type, EPA-estimated annual fuel cost in USD, tailpipe CO2 grams per mile, greenhouse-gas score (1–10), and a list of sibling engine/transmission variants with their own IDs so the agent can look up the exact configuration.
Example use cases
Car shopping cost-of-ownership comparison
“I'm deciding between a 2023 Honda Accord and a 2023 Toyota Camry — can you pull the city, highway, and combined MPG plus estimated annual fuel cost for both so I can compare which one is cheaper to run?”
Fleet vehicle emissions audit
“I need the tailpipe CO2 grams per mile and greenhouse-gas score for all engine variants of the 2022 Ford F-150 — we're auditing our fleet for emissions reporting.”
VIN-specific fuel economy decode
“I just bought a used car with VIN 1HGBH41JXMN109186 — can you decode the fuel economy data for it including the MPG ratings and what fuel type it takes?”
Technical details
Endpoint
POSThttps://x402.forgemesh.io/vehicle-fuel-economyWhen to prefer
Use this endpoint when you need official US EPA fuel-economy figures — especially city/highway/combined MPG, annual fuel cost estimates, CO2 per mile, or greenhouse-gas scores — for any US light-duty vehicle from 1984 onward. Prefer this over general vehicle info APIs when the goal is cost-of-ownership analysis, fleet emissions auditing, or car-shopping comparisons. It supports VIN decoding for used-car scenarios and returns sibling variants so agents can pinpoint the exact engine/transmission configuration.
Side effects
- VIN not found or not a US light-duty vehicle — returns error or empty result
- Year/make/model combination does not exist in EPA database (pre-1984 or non-US vehicle)
- Ambiguous model returns multiple variants without selecting one — agent must specify vehicle_id to narrow down
- Invalid model_year format (non-4-digit or out of range) causes validation error
- Partial input (e.g. make only without model or year) may return no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| vin | string | VIN — decoded automatically (alternative to make/model/model_year) |
| make | string | e.g. Honda |
| model | string | e.g. Accord |
| model_year | string | 4-digit year, 1984+ |
| vehicle_id | integer | exact variant id from other_variants |
Tags
x402
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