Free US vehicle averages in USD from matched asking prices. VIN optional; limited public pilot.
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A derived TradeBasis asking-price market average. Supply odometerMiles plus either vin or all of year, make, model and trim. Ask the user for missing details; never invent vehicle identity or mileage. VIN-assisted decoding may still require a confirmed trim, fuelType or bodyStyle. If supplied identity conflicts with the VIN, ask the user to verify the VIN and conflicting fields; do not choose silently or retry unchanged. Omit market for nationwide US. Not a trade-in offer or completed-sale value.
Current odometer reading in miles, required for BOTH input paths. Ask the user; never estimate mileage from the VIN or model year. Zero is valid only when actually reported.
VIN-assisted input: provide the vehicle's 17-character VIN with odometerMiles. Optional for complete manual input. Decoding may leave trim, fuelType or bodyStyle unresolved; ask the user to confirm them, never guess. If decoding fails, confirm the VIN or omit vin and use complete manual input. Supplied identity must agree with the VIN.
Confirmed vehicle manufacturer. Required without vin; optional with vin, but must agree with the decoded make.
Confirmed exact trim, including meaningful +, hyphens and powertrain qualifiers. Required without vin. With vin, supply it if decoding does not identify one unambiguous trim; never assume Base or choose from a decoded list.
Confirmed model year. Required without vin; optional with vin, but must agree with the decoded year. Ask the user if unknown.
Confirmed US model name. Required without vin; optional with vin, but must agree with the decoded model.
Optional US state name or two-letter state code, not the user's precise location. Omit for nationwide US.
Optional confirmed powertrain/fuel type. Required later if identity is ambiguous. Ask the user rather than selecting a default; must agree with a reported VIN powertrain.
Optional confirmed body style: sedan, hatchback, coupe, convertible, SUV, pickup, wagon, minivan or van. Required later if identity is ambiguous; ask the user and do not contradict the VIN.
A derived TradeBasis asking-price market average. Supply odometerMiles plus either vin or all of year, make, model and trim. Ask the user for missing details; never invent vehicle identity or mileage. VIN-assisted decoding may still require a confirmed trim, fuelType or bodyStyle. If supplied identity conflicts with the VIN, ask the user to verify the VIN and conflicting fields; do not choose silently or retry unchanged. Omit market for nationwide US. Not a trade-in offer or completed-sale value.
| Argument | Type | Description |
|---|---|---|
| vin | string | VIN-assisted input: provide the vehicle's 17-character VIN with odometerMiles. Optional for complete manual input. Decoding may leave trim, fuelType or bodyStyle unresolved; ask the user to confirm them, never guess. If decoding fails, confirm the VIN or omit vin and use complete manual input. Supplied identity must agree with the VIN. |
| make | string | Confirmed vehicle manufacturer. Required without vin; optional with vin, but must agree with the decoded make. |
| trim | string | Confirmed exact trim, including meaningful +, hyphens and powertrain qualifiers. Required without vin. With vin, supply it if decoding does not identify one unambiguous trim; never assume Base or choose from a decoded list. |
| year | integer | Confirmed model year. Required without vin; optional with vin, but must agree with the decoded year. Ask the user if unknown. |
| model | string | Confirmed US model name. Required without vin; optional with vin, but must agree with the decoded model. |
| market | string | Optional US state name or two-letter state code, not the user's precise location. Omit for nationwide US. |
| fuelType | string | Optional confirmed powertrain/fuel type. Required later if identity is ambiguous. Ask the user rather than selecting a default; must agree with a reported VIN powertrain. |
| bodyStyle | string | Optional confirmed body style: sedan, hatchback, coupe, convertible, SUV, pickup, wagon, minivan or van. Required later if identity is ambiguous; ask the user and do not contradict the VIN. |
| odometerMiles* | number | Current odometer reading in miles, required for BOTH input paths. Ask the user; never estimate mileage from the VIN or model year. Zero is valid only when actually reported. |
{
"type": "object",
"anyOf": [
{
"required": [
"year",
"make",
"model",
"trim"
]
},
{
"required": [
"vin"
]
}
],
"$schema": "http://json-schema.org/draft-07/schema#",
"required": [
"odometerMiles"
],
"properties": {
"vin": {
"type": "string",
"maxLength": 30,
"minLength": 1,
"description": "VIN-assisted input: provide the vehicle's 17-character VIN with odometerMiles. Optional for complete manual input. Decoding may leave trim, fuelType or bodyStyle unresolved; ask the user to confirm them, never guess. If decoding fails, confirm the VIN or omit vin and use complete manual input. Supplied identity must agree with the VIN."
},
"make": {
"type": "string",
"maxLength": 60,
"minLength": 1,
"description": "Confirmed vehicle manufacturer. Required without vin; optional with vin, but must agree with the decoded make."
},
"trim": {
"type": "string",
"maxLength": 80,
"minLength": 1,
"description": "Confirmed exact trim, including meaningful +, hyphens and powertrain qualifiers. Required without vin. With vin, supply it if decoding does not identify one unambiguous trim; never assume Base or choose from a decoded list."
},
"year": {
"type": "integer",
"description": "Confirmed model year. Required without vin; optional with vin, but must agree with the decoded year. Ask the user if unknown."
},
"model": {
"type": "string",
"maxLength": 80,
"minLength": 1,
"description": "Confirmed US model name. Required without vin; optional with vin, but must agree with the decoded model."
},
"market": {
"type": "string",
"maxLength": 60,
"description": "Optional US state name or two-letter state code, not the user's precise location. Omit for nationwide US."
},
"fuelType": {
"enum": [
"Gasoline",
"Diesel",
"Hybrid",
"Plug-in Hybrid",
"Electric"
],
"type": "string",
"description": "Optional confirmed powertrain/fuel type. Required later if identity is ambiguous. Ask the user rather than selecting a default; must agree with a reported VIN powertrain."
},
"bodyStyle": {
"type": "string",
"maxLength": 50,
"description": "Optional confirmed body style: sedan, hatchback, coupe, convertible, SUV, pickup, wagon, minivan or van. Required later if identity is ambiguous; ask the user and do not contradict the VIN."
},
"odometerMiles": {
"type": "number",
"maximum": 600000,
"minimum": 0,
"description": "Current odometer reading in miles, required for BOTH input paths. Ask the user; never estimate mileage from the VIN or model year. Zero is valid only when actually reported."
}
},
"additionalProperties": false
}