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Auto Trader API

Retail Pricing, Market Metrics & Vehicle Data

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One Auto API provides access to Auto Trader retail check, specification and valuation data through a single API, alongside data from other vehicle-data providers.

About Auto Trader

Auto Trader provides vehicle data that helps UK automotive businesses identify stock, understand its specification and make informed pricing decisions. Its valuation and retail metrics services support decisions throughout a vehicle’s journey, from acquisition and part-exchange to advertising and sale.

One Auto API is an Auto Trader Connect partner, providing licensed users with access to Auto Trader vehicle identification, specification, valuation and retail metrics data. Through our single API platform, businesses can bring that information into their existing systems and combine it with services from other vehicle data providers.

Vehicle data for connected workflows

Autotrader API integration can begin with vehicle identification. Using a registration number, an application can retrieve vehicle details include the correct model and derivative. Specification data can then support appraisal, stock creation and accurate vehicle descriptions, reducing the need to enter the same information across multiple systems.

Auto Trader valuations add a view of vehicle value for different selling contexts, including retail, trade, private sale and part-exchange. Retail metrics provide further insight into market conditions. Depending on the service and licence available, these can include supply, demand, Retail Rating and estimated days to sell. Together, valuations and metrics help businesses consider both a vehicle’s potential selling price and how well it may perform in the market.

How businesses use Auto Trader data

Stock management: Identify vehicles, retrieve specification details and populate stock records with consistent information. Data can flow into dealer management systems, websites and other applications used to prepare vehicles for sale. Adding valuation and retail metrics information gives stock teams more context when reviewing the forecourt.

Retail pricing: Use valuation data as a starting point for setting or reviewing an advertised price. Retail metrics can help teams assess demand and expected speed of sale, supporting decisions about when to adjust a price. This is useful for businesses that need to balance margin with stock turn across many vehicles.

Part-exchanges: Build appraisal journeys that begin with a registration lookup and return the correct vehicle details. A part-exchange valuation can inform the initial assessment, while specification and market information give the team a fuller picture before making an offer. The resulting workflow can support both online enquiries and conversations in the showroom.

Stock buying: Evaluate vehicles before committing to an acquisition. Combining identification, valuation and retail metrics helps buying teams compare opportunities, consider likely retail performance and decide which vehicles suit their business. The same data can support buying from consumers, trade sources or auctions.

Market intelligence: Monitor the conditions affecting pricing and demand for different vehicles. Supply, demand, Retail Rating and days-to-sell estimates can help teams review their stock mix and understand how particular vehicles may perform. Making these insights available within existing tools helps decision-makers act on the data during their normal workflow.

Auto Trader data through One Auto API

One Auto API gives licensed users a route to Auto Trader data alongside access to other automotive data providers through a single API. A business might use Auto Trader valuations and retail metrics for pricing, then add a vehicle history check or another specialist dataset to support a wider appraisal or stock buying process. This approach allows teams to build the workflow they need without maintaining a separate technical integration for every source.

Access to Auto Trader data is subject to the relevant licence and permitted use. We can help you identify which services fit your application and how they should be incorporated into it. That matters whether you are extending a dealership’s existing tools or building a product for multiple licensed users.

If you are searching for an Auto Trader API integration partner in the UK, our team can help scope the vehicle data, valuation and metrics endpoints needed for your UK workflow. For developers looking for Auto Trader API documentation, One Auto API provides technical resources and a sandbox to help plan and test the integration.  We can discuss the applicable licensing arrangements, the services required and your expected usage before recommending an approach.

Whether your priority is faster stock creation, more informed retail pricing or a better part-exchange journey, One Auto API can help you put Auto Trader data to work within the systems your business already uses.

What the API Includes

Field NameField TypeExampleDefinition
0to100_kmph
Float
12.3Manufacturer's claimed time (in seconds) for 0 - 100 kilometers per hour.
0to60_mph
Float
12.3Manufacturer's claimed time (in seconds) for 0 - 60 miles per hour.
advertised_price
Int
The advertised price of the vehicle
asset_type
String
carThe asset type.
autotrader_asset_type
String
CarAuto Trader's asset type
autotrader_body_type_desc
String
ConvertibleAuto Trader's body type description
autotrader_derivative_id
String
1a2b345cf6d789ef1g0111h2i13j141kThe Auto Trader Derivative ID
autotrader_drivetrain_type_desc
String
Front Wheel DriveAuto Trader's drivetrain description
autotrader_fuel_type_desc
String
PetrolAuto Trader's fuel type
autotrader_generation_id
String
1a2b345cf6d789ef1g0111h2i13j141kThe Auto Trader identifier for that generation of vehicle
autotrader_manufacturer_id
String
1a2b345cf6d789ef1g0111h2i13j141kThe Auto Trader identifier for the vehicle manufacturer
autotrader_model_id
String
1a2b345cf6d789ef1g0111h2i13j141kAuto Trader identifier for the vehicle model range
autotrader_transmission_desc
String
ManualAuto Trader's transmission description
bootspace_seats_down_litres
Int
123The bootspace with seats down in litres
bootspace_seats_up_litres
Int
123The bootspace with seats up in litres
cab_type_desc
String
Crew cabCab type (applicable to commercial vehicles).
charge_port_type
String
Type 2Type of port for this charge port item.
charger_chargetime_0to100_mins
Int
2580Onboard charger chargetime 1 to 100% in minutes.
co2_gkm
Int
123CO2 in g/km
colour
String
REDExterior colour of vehicle.
country_of_origin
String
United KingdomWhere the vehicle was made and manufactured.
current_mileage
Int
12345Current mileage of the vehicle
current_production
Boolean
When supplying a "true" value will return only generations currently in production
cylinder_arrangement
String
InlineArrangement of the cylinders within the engine.
date_of_last_keeper_change
Date
2022-01-01Date of last keeper change.
days_to_sell
Float
123The expected number of days it will take to sell the vehicle.
delivery_price_ex_vat
Int
595Delivery price excluding VAT
delivery_price_vat
Float
1234.56The delivery price VAT
derivative_desc
String
Long Range Single MotorEV Database’s model variant.
discontinued_date
String
nullThe date the vehicle was available to in the market
drive_type_desc
String
4X2Number of wheels the engine is delivering power to.
effective_date
Date
Return the pricing relevant to the chosen vehicle for that moment in time.
effective_from_date
Date
2020-01-01The date the price is effective from
effective_to_date
Date
2020-01-01The date the price is effective to
electric_vehicle_supply_equipment_desc
String
230V10A1XElectric vehicle supply equipment description.
electric_vehicle_supply_equipment_power_kw
Float
2.3Rate of the power delivery in kilowatts.
emission_class
String
Euro 6European emission standard. Value indicates the emission levels in line with the age of the vehicle.
engine_badged_size_litres
Float
1.5Engine badged size in litres.
engine_bore_mm
Int
82Diameter measurement of the cylinder in millimetres.
engine_capacity_cc
Int
1499Cubic capacity of the engine.
engine_data
String
1197cc, 69 HP, 75Engine data
engine_manufacturer
String
MiniManufacturer of the engine.
engine_number
String
A12345678Vehicle engine number.
engine_stroke_mm
Int
95A measure (in millimetres) of the engine's cycle during which the piston travels from top to bottom or vice versa.
error
String
Example error detailsDetails of what went wrong with the api call
fast_charger_chargetime_10to80_percent_mins
Int
4010-80% fast charger charge time in minutes
feature_category
String
Audio and CommunicationsThe feature category
feature_desc
String
12Volt Socket in Front Centre ConsoleThe feature description
feature_generic_desc
String
12V SocketThe feature generic description
feature_status
String
StandardThe feature status (default options priced at '£0' & can be swapped for alternative option)
first_registration_date
Date
2020-01-01Date of first registration.
forecast_date
Date
This is the date when the forecasted value is required.
forecast_retail_valuation
Int
12345The suggested future market average retail valuation for the specified vehicle
forecast_trade_valuation
Int
12345The suggested future market average trade valuation for the specified vehicle
fuel_capacity_litres
Int
40Fuel capacity in litres.
fuel_delivery
String
InjectionFuel delivery method.
future_mileage
Int
he mileage the vehicle will complete by the forecast date
generation_desc
String
Hatchback (2018 - 2021)The generation description
gross_trainweight_kg
Int
1234Maximum weight a vehicle is allowed (including) a trailor in kilograms
gross_vehicleweight_kg
Int
2359Total weight of the vehicle including the Kerb Weight and Payload Weight in kilograms.
insurance_group_1to50
String
22The 1-50 insurance group
insurance_security_code
String
EThe Insurance group rating
introduced_date
String
2024-01-01The date the vehicle was available in the market from
is_exported
Boolean
trueVehicle is exported.
is_factory_fitted
Boolean
Is the feature factory fitted
is_imported
Boolean
trueVehicle is imported.
is_rde_compliant
Boolean
trueIs the vehicle rde compliant
is_scrapped
Boolean
trueHas the vehicle been scrapped.
is_startstop
Boolean
trueDoes the vehicle have start stop technology
is_stolen
Boolean
trueIs the vehicle stolen
list_price_ex_vat
Float
123.45The list price excluding VAT
list_price_inc_delivery_vat
Float
12345.67The list price + delivery price including VAT
list_price_inc_vat
Float
123.45The list price including VAT
list_price_vat
Float
12.34The list price VAT
location_market_rating
Float
12.34Modelled metric of the potential retail performance of a vehicle based on the Days to Sell, Supply and Demand for the given location (1-100) (1: poor performance, 100: good performance).
long_derivative_desc
String
1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)An expanded version of the derivative description
manufacturer_desc
String
MiniManufacturer description
market_condition
Float
0.12Modelled number to illustrate current market condition based on Supply & Demand metrics (-0-1+) (-0: poor market condition, 1+: average-good market condition).
market_demand
Float
1.23A comparison of the national demand observed on Auto Trader over the last 7 days relative to the level of demand that has been observed over the last 6 months (-0 to 1+) (-0: low demand, 1+: average-high demand).
market_supply
Float
1.2A comparison of the national market supply observed on Auto Trader over the last 7 days relative to the market supply that has been observed over the last 6 months (-0 to 1+) (-0: high supply, 1+: average-limited supply).
maximum_permissable_mass_kg
Int
2085Maximum permissable mass in kilograms.
miles_per_annum
Int
The expected annual mileage
min_kerbweight_kg
Int
1135Weight of the vehicle, including a full tank of fuel and all standard equipment in kilograms.
model_range_desc
String
HatchModel range description.
national_days_to_sell
Float
12.3 The expected number of days it will take to sell the vehicle based on the chosen advertised price at national level.
national_market_rating
Float
12.3The modelled metric of the potential retail performance of a vehicle based on the Days to Sell, Supply and Demand at national level.
nedc_combined_mpg
Float
12.3The NEDC Average miles per gallon between urban (city driving) and extra urban (B-road, A-road and motorway) driving ICE and SCH
nedc_extra_urban_mpg
Float
61.4NEDC number of miles per gallon B-road, A-road and motorway driving ICE
nedc_urban_mpg
Float
12.3The NEDC number of miles per gallon city driving ICE and SCH
number_axles
Int
2Number of axles.
number_cylinders
Int
3Number of cylinders within the engine.
number_doors
Int
2Number of doors.
number_gears
Int
1Number of gears.
number_previous_keepers
Int
1Number of previous keepers.
number_seats
Int
5Number of seats.
oem_body_type_desc
String
ConvertibleThe body type description as supplied by manufacturer
oem_colour
String
Midnight BlackThe exterior colour as supplied by manufacturer
oem_derivative_desc
String
Cooper ConvertibleThe derivative description as supplied by manufacturer
oem_drivetrain_desc
String
Front wheel driveThe drivetrain description as supplied by manufacturer
oem_edition_desc
String
TBCThe edition description as supplied by manufacturer
oem_engine_desc
String
58kWhThe engine description as supplied by manufacturer
oem_engine_tech_desc
String
TBCThe engine technical description as supplied by manufacturer
oem_engine_type_desc
String
DIG-TThe engine type description as supplied by manufacturer.
oem_manufacturer_desc
String
MINIThe manufacturer description as supplied by manufacturer
oem_model_range_desc
String
ConvertibleThe model range description as supplied by manufacturer
oem_roof_height_type_desc
String
LowThe roof height description as supplied by the manufacturer
oem_transmission_type_desc
String
ManualThe transmission type description as supplied by manufacturer
oem_wheelbase_type_desc
String
STDThe wheelbase description as supplied by the manufacturer
part_exchange_valuation
Int
12345The suggested market average part exchange valuation for the specified vehicle (location, market and condition adjusted).
payload_height_mm
Int
1234The payload height in mm
payload_length_mm
Int
1234The payload length in mm
payload_volume_cubicmetres
Int
123The payload volume in cubic metres
payload_weight_kg
Int
123Difference between the Kerb Weight and the Gross Weight in kilograms.
payload_width_mm
Int
1234The payload width in mm
post_code
String
AB1 2CDThe location of the stock vehicle used as the centre of the search.
power_bhp
Float
201.2Maximum BHP (Brake Horse Power) of this vehicle.
power_ps
Int
204Power PS.
previous_keeper_acquisition_date
Date
2020-01-01The previous keepers acquisition date
private_valuation
Int
12345The suggested market average private sale valuation for the specified vehicle (location, market and condition adjusted).
result
String
failHas the vehicle passed all lead validation tests.
retail_valuation
Int
12345The suggested market average retail valuation for the specified vehicle (cars only).
retail_valuation_ex_vat
Int
12345The suggested market average retail valuation excluding vat for the specified vehicle (cars only).
roof_height_type_desc
String
LowThe roof height description
style
String
tractorThe style of vehicle
substyle
String
large tractorThe substyle of vehicle
success
Boolean
trueWhether the api call was successful
top_speed_mph
Int
103Manufacturer's claimed top speed in miles per hour
torque_lbft
Float
291.5Maximum power described in Lb/ft (Pound per foot).
torque_nm
Int
395Maximum power described in Torque Nm (Torque Newton Metres).
trade_valuation
Int
12345The suggested market average trade valuation for the specified vehicle (location, market and condition adjusted).
trim_level_desc
String
CooperThe trim level description
valve_gear
String
Double Overhead CamshaftDescribes the type/placement.
valves
Int
12The number of valves
vehicle_condition
Int
Vehicle's condition (0-100 - where 0 is very poor and 100 is retail-ready)
vehicle_desc
String
Mini Cooper SThe Vehicle description
vehicle_height_mm
Int
1414Overall height of the vehicle, including roof-bars or aerial in millimetres.
vehicle_identification_number
String
ABCDE123456F78910Vehicle identification number (VIN).
vehicle_length_mm
Int
3821Overall length of the vehicle (bumper to bumper). Does not include any after market items, which may extended the length of the vehicle in millimetres.
vehicle_registration_mark
String
Vehicle registration number (VRM).
vehicle_sector
String
Supermini ConvThe vehicle sector as defined by Auto Trader
vehicle_wheelbase_mm
Int
2495Measurement between the centre of the wheels on either side of the vehicle in millimetres.
vehicle_width_mm
Int
1727Overall width, including the wing mirrors in millimetres.
wheelbase_type_desc
String
Short WheelbaseWheelbase type.
wltp_combined_mpg
Float
12.3The WLTP average number of miles per gallon tested under wltp (low, medium, high & extra high)
wltp_extra_high_mpg
Float
12.3The WLTP number of miles per gallon tested under wltp at speeds up to 81mph
wltp_high_mpg
Float
12.3The WLTP number of miles per gallon tested under wltp at speeds up to 60mph
wltp_low_mpg
Float
12.3The WLTP number of miles per gallon tested under wltp at speeds up to 35mph
wltp_medium_mpg
Float
12.3The WLTP number of miles per gallon tested under wltp at speeds up to 47mph

Auto Trader API Endpoints

Accelerator
Auto Trader Valuation from VRM
Powered by Auto Trader

Accurate vehicle values powered by millions of vehicles from a VRM. 100% data-driven pricing that reflects the current market.

Sample Auto Trader API Responses

Auto Trader Valuation from VRM
Derivatives
Future Values from ID
Future Values from VRM
Generations
Inventory Augmentation
Manufacturers
Model Ranges
MRRP from ID
Retail Check from ID
Retail Check from VRM
Technical Data & Features
Valuation & Metrics from ID
Valuation & Metrics from VRM
Valuation from ID
Vehicle Lookup from VRM
{
  "success": true,
  "result": {
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
    "retail_valuation": 12345,
    "retail_valuation_ex_vat": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "derivatives_data": [
      {
        "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
        "derivative_desc": "1.5 Cooper Classic Hatchback 3dr Petrol Manual Euro 6 (s/s) (136 ps)"
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "forecast_retail_valuation": 12345,
    "forecast_trade_valuation": 12345,
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k"
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "vehicle_registration_mark": "AB21ABC",
    "first_registration_date": "2020-01-01",
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
    "forecast_retail_valuation": 12345,
    "forecast_trade_valuation": 12345
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "generations_data": [
      {
        "autotrader_generation_id": "1a2b345cf6d789ef1g0111h2i13j141k",
        "generation_desc": "Convertible (2019- 2022)"
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "basic_vehicle_info": {
      "vehicle_registration_mark": "AB21ABC",
      "vehicle_identification_number": "ABCDE123456F78910",
      "first_registration_date": "2020-01-01",
      "country_of_origin": "United Kingdom",
      "colour": "Black",
      "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
      "autotrader_asset_type": "Car",
      "vehicle_sector": "Supermini Conv",
      "manufacturer_desc": "MINI",
      "model_range_desc": "Convertible",
      "generation_desc": "Convertible (2015 - 2018)",
      "derivative_desc": "1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "trim_level_desc": "Cooper",
      "autotrader_body_type_desc": "Convertible",
      "autotrader_fuel_type_desc": "Petrol",
      "cab_type_desc": "Crew cab",
      "autotrader_transmission_desc": "Manual",
      "wheelbase_type_desc": "STD",
      "roof_height_type_desc": "Low",
      "autotrader_drivetrain_type_desc": "Front Wheel Drive",
      "drive_type_desc": "4X2",
      "number_seats": 4,
      "number_doors": 2,
      "number_gears": 6,
      "number_axles": 2,
      "style": "tractor",
      "substyle": "large tractor"
    },
    "insurance_data": {
      "insurance_group_1to50": "22",
      "insurance_security_code": "E"
    },
    "performance_data": {
      "top_speed_mph": 123,
      "0to60_mph": 12.3,
      "0to100_kmph": 12.3
    },
    "weight_dimension_capacities_data": {
      "vehicle_length_mm": 1234,
      "vehicle_height_mm": 1234,
      "vehicle_width_mm": 1234,
      "vehicle_wheelbase_mm": 1234,
      "bootspace_seats_up_litres": 123,
      "bootspace_seats_down_litres": 123,
      "payload_length_mm": 1234,
      "payload_width_mm": 1234,
      "payload_height_mm": 1234,
      "payload_weight_kg": 123,
      "payload_volume_cubicmetres": 123,
      "min_kerbweight_kg": 1234,
      "gross_vehicleweight_kg": 1234,
      "maximum_permissable_mass_kg": 1234,
      "gross_trainweight_kg": 1234
    },
    "engine_data": {
      "engine_manufacturer": "MINI",
      "engine_number": "AB12345",
      "engine_badged_size_litres": 1.2,
      "engine_capacity_cc": 1234,
      "engine_bore_mm": 12,
      "engine_stroke_mm": 12,
      "fuel_delivery": "Turbo Common Rail",
      "fuel_capacity_litres": 12,
      "number_cylinders": 3,
      "cylinder_arrangement": "Inline",
      "valve_gear": "Double Overhead Camshaft",
      "valves": 12,
      "power_ps": 123,
      "power_bhp": 123.5,
      "torque_nm": 123,
      "torque_lbft": 123.45,
      "emission_class": "Euro 6",
      "is_rde_compliant": true,
      "co2_gkm": 123,
      "is_startstop": true,
      "nedc_extra_urban_mpg": 12.3,
      "nedc_urban_mpg": 12.3,
      "nedc_combined_mpg": 12.3,
      "wltp_low_mpg": 12.3,
      "wltp_medium_mpg": 12.3,
      "wltp_high_mpg": 12.3,
      "wltp_extra_high_mpg": 12.3,
      "wltp_combined_mpg": 12.3
    },
    "ev_data": {
      "onboard_charger_table": [
        {
          "charger_chargetime_0to100_mins": 210,
          "electric_vehicle_supply_equipment_power_kw": 22,
          "electric_vehicle_supply_equipment_desc": "22kW AC Three Phase",
          "charge_port_type": "Type 2"
        }
      ],
      "fast_charger_table": [
        {
          "fast_charger_chargetime_10to80_percent_mins": 40,
          "electric_vehicle_supply_equipment_power_kw": 50,
          "electric_vehicle_supply_equipment_desc": "50kW DC",
          "charge_port_type": "CCS"
        }
      ]
    },
    "oem_data": {
      "oem_manufacturer_desc": "MINI",
      "oem_model_range_desc": "Convertible",
      "oem_derivative_desc": "Cooper Convertible",
      "oem_body_type_desc": "Convertible",
      "oem_transmission_type_desc": "Manual",
      "oem_drivetrain_desc": "Front wheel drive",
      "oem_wheelbase_type_desc": "STD",
      "oem_roof_height_type_desc": "Low",
      "oem_engine_type_desc": "DIG-T",
      "oem_engine_tech_desc": "TBC",
      "oem_engine_desc": "58kWh",
      "oem_edition_desc": "TBC",
      "oem_colour": "Midnight Black"
    },
    "basic_vehicle_check": {
      "is_stolen": false,
      "is_scrapped": false,
      "is_exported": false,
      "is_imported": false,
      "number_previous_keepers": 1,
      "date_of_last_keeper_change": "2020-01-01",
      "previous_keeper_acquisition_date": "2020-01-01"
    },
    "features_data": [
      {
        "feature_desc": "12Volt Socket in Front Centre Console",
        "feature_generic_desc": "12V Socket",
        "feature_status": "Optional",
        "is_factory_fitted": false,
        "feature_category": "Audio and Communications",
        "list_price_ex_vat": 123.45,
        "list_price_vat": 12.34,
        "list_price_inc_vat": 123.45
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "manufacturers_data": [
      {
        "manufacturer_desc": "BMW",
        "autotrader_manufacturer_id": "1a2b345cf6d789ef1g0111h2i13j141k"
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "modelranges_data": [
      {
        "model_range_desc": "Hatch",
        "autotrader_model_id": "1a2b345cf6d789ef1g0111h2i13j141k"
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "prices_data": [
      {
        "effective_from_date": "2020-01-01",
        "effective_to_date": "2020-01-01",
        "list_price_ex_vat": 12345.67,
        "list_price_vat": 1234.56,
        "delivery_price_ex_vat": 12345.67,
        "delivery_price_vat": 1234.56,
        "list_price_inc_delivery_vat": 12345.67
      }
    ],
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k"
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "retail_valuation": 12345,
    "retail_valuation_ex_vat": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345,
    "national_market_rating": 12.3,
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k"
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "vehicle_registration_mark": "AB21ABC",
    "first_registration_date": "2020-01-01",
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
    "retail_valuation": 12345,
    "retail_valuation_ex_vat": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345,
    "national_market_rating": 12.3
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "basic_vehicle_info": {
      "country_of_origin": "United Kingdom",
      "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
      "autotrader_asset_type": "Car",
      "vehicle_sector": "Supermini Conv",
      "manufacturer_desc": "MINI",
      "model_range_desc": "Convertible",
      "generation_desc": "Convertible (2015 - 2018)",
      "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "trim_level_desc": "Cooper",
      "autotrader_body_type_desc": "Convertible",
      "autotrader_fuel_type_desc": "Petrol",
      "cab_type_desc": "Crew cab",
      "autotrader_transmission_desc": "Manual",
      "wheelbase_type_desc": "STD",
      "roof_height_type_desc": "Low",
      "autotrader_drivetrain_type_desc": "Front Wheel Drive",
      "drive_type_desc": "4X2",
      "number_seats": 4,
      "number_doors": 2,
      "number_gears": 6,
      "number_axles": 2,
      "derivative_desc": "1.5 Cooper Convertible (s/s) 2dr",
      "long_derivative_desc": "1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "introduced_date": "2020-01-01",
      "discontinued_date": "2020-01-01"
    },
    "insurance_data": {
      "insurance_group_1to50": "22",
      "insurance_security_code": "E"
    },
    "performance_data": {
      "top_speed_mph": 123,
      "0to60_mph": 12.3,
      "0to100_kmph": 12.3
    },
    "weight_dimension_capacities_data": {
      "vehicle_length_mm": 1234,
      "vehicle_height_mm": 1234,
      "vehicle_width_mm": 1234,
      "vehicle_wheelbase_mm": 1234,
      "bootspace_seats_up_litres": 123,
      "bootspace_seats_down_litres": 123,
      "payload_length_mm": 1234,
      "payload_width_mm": 1234,
      "payload_height_mm": 1234,
      "payload_weight_kg": 123,
      "payload_volume_cubicmetres": 123,
      "min_kerbweight_kg": 1234,
      "gross_vehicleweight_kg": 1234,
      "gross_trainweight_kg": 1234
    },
    "engine_data": {
      "engine_manufacturer": "MINI",
      "engine_badged_size_litres": 1.2,
      "engine_capacity_cc": 1234,
      "engine_bore_mm": 12,
      "engine_stroke_mm": 12,
      "fuel_delivery": "Turbo Common Rail",
      "fuel_capacity_litres": 12,
      "number_cylinders": 3,
      "cylinder_arrangement": "Inline",
      "valve_gear": "Double Overhead Camshaft",
      "valves": 12,
      "power_ps": 123,
      "power_bhp": 123.5,
      "torque_nm": 123,
      "torque_lbft": 123.45,
      "emission_class": "Euro 6",
      "is_rde_compliant": true,
      "co2_gkm": 123,
      "is_startstop": true,
      "nedc_extra_urban_mpg": 12.3,
      "nedc_urban_mpg": 12.3,
      "nedc_combined_mpg": 12.3,
      "wltp_low_mpg": 12.3,
      "wltp_medium_mpg": 12.3,
      "wltp_high_mpg": 12.3,
      "wltp_extra_high_mpg": 12.3,
      "wltp_combined_mpg": 12.3
    },
    "oem_data": {
      "oem_manufacturer_desc": "MINI",
      "oem_model_range_desc": "Convertible",
      "oem_derivative_desc": "Cooper Convertible",
      "oem_body_type_desc": "Convertible",
      "oem_transmission_type_desc": "Manual",
      "oem_drivetrain_desc": "Front wheel drive",
      "oem_wheelbase_type_desc": "STD",
      "oem_roof_height_type_desc": "Low",
      "oem_engine_type_desc": "DIG-T",
      "oem_engine_tech_desc": "TBC",
      "oem_engine_desc": "58kWh",
      "oem_edition_desc": "TBC",
      "oem_colour": "Midnight Black"
    },
    "feature_data": [
      {
        "feature_desc": "12Volt Socket in Front Centre Console",
        "feature_status": "Standard",
        "feature_category": "Audio and Communications",
        "list_price_ex_vat": 123.45,
        "list_price_vat": 12.34,
        "list_price_inc_vat": 123.45
      }
    ]
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
    "retail_valuation": 12345,
    "retail_valuation_ex_vat": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345,
    "market_supply": 1.2,
    "market_demand": 1.23,
    "market_condition": 0.12,
    "locations": [
      {
        "location_market_rating": 12.34,
        "days_to_sell": 123,
        "post_code": "AB12ABC"
      }
    ],
    "national_market_rating": 12.3,
    "national_days_to_sell": 12.3
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "vehicle_registration_mark": "AB21ABC",
    "first_registration_date": "2020-01-01",
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
    "retail_valuation": 12345,
    "retail_valuation_ex_vat": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345,
    "market_supply": 1.2,
    "market_demand": 1.23,
    "market_condition": 0.12,
    "locations": [
      {
        "location_market_rating": 12.34,
        "days_to_sell": 123,
        "post_code": "AB12ABC"
      }
    ],
    "national_market_rating": 12.3,
    "national_days_to_sell": 12.3
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
    "retail_valuation": 12345,
    "private_valuation": 12345,
    "trade_valuation": 12345,
    "part_exchange_valuation": 12345,
    "retail_valuation_ex_vat": 12345
  },
  "error": "If there is an error the message would go here"
}
{
  "success": true,
  "result": {
    "basic_vehicle_info": {
      "vehicle_registration_mark": "AB21ABC",
      "vehicle_identification_number": "ABCDE123456F78910",
      "first_registration_date": "2020-01-01",
      "country_of_origin": "United Kingdom",
      "colour": "Black",
      "autotrader_derivative_id": "1a2b345cf6d789ef1g0111h2i13j141k",
      "autotrader_asset_type": "Car",
      "vehicle_sector": "Supermini Conv",
      "manufacturer_desc": "MINI",
      "model_range_desc": "Convertible",
      "generation_desc": "Convertible (2015 - 2018)",
      "derivative_desc": "1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "vehicle_desc": "MINI Convertible 1.5 Cooper Convertible 2dr Petrol Manual (s/s) (136 ps)",
      "trim_level_desc": "Cooper",
      "autotrader_body_type_desc": "Convertible",
      "autotrader_fuel_type_desc": "Petrol",
      "cab_type_desc": "Crew cab",
      "autotrader_transmission_desc": "Manual",
      "wheelbase_type_desc": "STD",
      "roof_height_type_desc": "Low",
      "autotrader_drivetrain_type_desc": "Front Wheel Drive",
      "drive_type_desc": "4X2",
      "number_seats": 4,
      "number_doors": 2,
      "number_gears": 6,
      "number_axles": 2,
      "style": "tractor",
      "substyle": "large tractor"
    },
    "insurance_data": {
      "insurance_group_1to50": "22",
      "insurance_security_code": "E"
    },
    "performance_data": {
      "top_speed_mph": 123,
      "0to60_mph": 12.3,
      "0to100_kmph": 12.3
    },
    "weight_dimension_capacities_data": {
      "vehicle_length_mm": 1234,
      "vehicle_height_mm": 1234,
      "vehicle_width_mm": 1234,
      "vehicle_wheelbase_mm": 1234,
      "bootspace_seats_up_litres": 123,
      "bootspace_seats_down_litres": 123,
      "payload_length_mm": 1234,
      "payload_width_mm": 1234,
      "payload_height_mm": 1234,
      "payload_weight_kg": 123,
      "payload_volume_cubicmetres": 123,
      "min_kerbweight_kg": 1234,
      "gross_vehicleweight_kg": 1234,
      "maximum_permissable_mass_kg": 1234,
      "gross_trainweight_kg": 1234
    },
    "engine_data": {
      "engine_manufacturer": "MINI",
      "engine_number": "AB12345",
      "engine_badged_size_litres": 1.2,
      "engine_capacity_cc": 1234,
      "engine_bore_mm": 12,
      "engine_stroke_mm": 12,
      "fuel_delivery": "Turbo Common Rail",
      "fuel_capacity_litres": 12,
      "number_cylinders": 3,
      "cylinder_arrangement": "Inline",
      "valve_gear": "Double Overhead Camshaft",
      "valves": 12,
      "power_ps": 123,
      "power_bhp": 123.5,
      "torque_nm": 123,
      "torque_lbft": 123.45,
      "emission_class": "Euro 6",
      "is_rde_compliant": true,
      "co2_gkm": 123,
      "is_startstop": true,
      "nedc_extra_urban_mpg": 12.3,
      "nedc_urban_mpg": 12.3,
      "nedc_combined_mpg": 12.3,
      "wltp_low_mpg": 12.3,
      "wltp_medium_mpg": 12.3,
      "wltp_high_mpg": 12.3,
      "wltp_extra_high_mpg": 12.3,
      "wltp_combined_mpg": 12.3
    },
    "ev_data": {
      "onboard_charger_table": [
        {
          "charger_chargetime_0to100_mins": 210,
          "electric_vehicle_supply_equipment_power_kw": 22,
          "electric_vehicle_supply_equipment_desc": "22kW AC Three Phase",
          "charge_port_type": "Type 2"
        }
      ],
      "fast_charger_table": [
        {
          "fast_charger_chargetime_10to80_percent_mins": 40,
          "electric_vehicle_supply_equipment_power_kw": 50,
          "electric_vehicle_supply_equipment_desc": "50kW DC",
          "charge_port_type": "CCS"
        }
      ]
    },
    "oem_data": {
      "oem_manufacturer_desc": "MINI",
      "oem_model_range_desc": "Convertible",
      "oem_derivative_desc": "Cooper Convertible",
      "oem_body_type_desc": "Convertible",
      "oem_transmission_type_desc": "Manual",
      "oem_drivetrain_desc": "Front wheel drive",
      "oem_wheelbase_type_desc": "STD",
      "oem_roof_height_type_desc": "Low",
      "oem_engine_type_desc": "DIG-T",
      "oem_engine_tech_desc": "TBC",
      "oem_engine_desc": "58kWh",
      "oem_edition_desc": "TBC",
      "oem_colour": "Midnight Black"
    },
    "basic_vehicle_check": {
      "is_stolen": false,
      "is_scrapped": false,
      "is_exported": false,
      "is_imported": false,
      "number_previous_keepers": 1,
      "date_of_last_keeper_change": "2020-01-01",
      "previous_keeper_acquisition_date": "2020-01-01"
    }
  },
  "error": "If there is an error the message would go here"
}

FAQ

We provide access to vehicle lookups; specifications; current and forecast valuations; retail rating and market metrics - alongside data from other leading providers in a single API. Your level of data access will be determined by your licence with Auto Trader.

Dealers advertising with Auto Trader may have data access as part of an advertising package; other businesses will be required to purchase an enterprise licence from Auto Trader.

Set up your One Auto API account as normal, then let us know your Dealer ID (DID) and we will contact Auto Trader to enable access.

Auto Trader Retail Check combines the Auto Trader Valuation and Retail Rating in a single data package. Retail Rating scores how well a vehicle should sell based on supply and demand and is used when appraising part-exchanges, buying stock or to help implement a retail pricing strategy.

Online appraisal and part-exchange tools, stock acquisition, inventory management, pricing engines, and dealer management system integrations can all be supported with real-time valuation and market metrics data - alongside other data sources.

We provide access to Auto Trader data via a single API, alongside other data providers - with simpler authentication and harmonised field names for faster integration.

What Auto Trader data can I access via One Auto API?

We provide access to vehicle lookups; specifications; current and forecast valuations; retail rating and market metrics - alongside data from other leading providers in a single API. Your level of data access will be determined by your licence with Auto Trader.

Do I need my own Auto Trader account to use the Auto Trader API?

Dealers advertising with Auto Trader may have data access as part of an advertising package; other businesses will be required to purchase an enterprise licence from Auto Trader.

How to I connect my Auto Trader account to One Auto API?

Set up your One Auto API account as normal, then let us know your Dealer ID (DID) and we will contact Auto Trader to enable access.

What is Auto Trader Retail Check, and how is it delivered via API?

Auto Trader Retail Check combines the Auto Trader Valuation and Retail Rating in a single data package. Retail Rating scores how well a vehicle should sell based on supply and demand and is used when appraising part-exchanges, buying stock or to help implement a retail pricing strategy.

What use cases does the Auto Trader API support?

Online appraisal and part-exchange tools, stock acquisition, inventory management, pricing engines, and dealer management system integrations can all be supported with real-time valuation and market metrics data - alongside other data sources.

What are the advantages of integrating with the Auto Trader API via One Auto API?

We provide access to Auto Trader data via a single API, alongside other data providers - with simpler authentication and harmonised field names for faster integration.

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