Official fuel-economy lookup for US light-duty vehicles back to 1984
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.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
257 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://x402.forgemesh.io/vehicle-fuel-economy
| Category | Commerce and shopping |
|---|---|
| Provider host | x402.forgemesh.io |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 257 ms |
Example input (from the provider)
{
"body": {
"make": "Honda",
"model": "Accord",
"model_year": "2020"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"make": {
"description": "e.g. Honda",
"type": "string"
},
"model": {
"description": "e.g. Accord",
"type": "string"
},
"model_year": {
"description": "4-digit year, 1984+",
"type": "string"
},
"vehicle_id": {
"description": "exact variant id from other_variants",
"type": "integer"
},
"vin": {
"description": "VIN \u2014 decoded automatically (alternative to make/model/model_year)",
"type": "string"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}