CarGurus Instant Market Value API

Retrieve CarGurus Instant Market Value and deal rating for cars.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/cargurus-dealer-instant-market-value-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

cargurus-dealer-instant-market-value-api-openapi.yml Raw ↑
openapi: 3.0.3
info:
  title: CarGurus Developer APIs Car Selector Instant Market Value API
  description: 'Documented HTTP APIs published by CarGurus under the /Cars/api/ path. Four surfaces are described here: the open (no-auth) Car Selector API for building new/used listing search widgets, and three partner/dealer-gated APIs - Instant Market Value (IMV), Dealer Reviews, and Dealer Stats. The gated APIs authenticate with an appId and authToken issued by CarGurus and are passed as query parameters alongside a JSON body. Endpoint paths, methods, and the Car Selector, IMV, and Dealer Reviews schemas are taken directly from CarGurus developer documentation; the Dealer Stats response is modeled from CarGurus documentation and published examples (endpointsModeled). CarGurus does not publish a public inventory-listings pull API - dealer inventory is ingested via inventory feeds (feed providers / IMT) - and leads are delivered to dealer CRMs rather than exposed here.'
  version: '1.0'
  contact:
    name: CarGurus Developers
    url: https://www.cargurus.com/Cars/developers/
servers:
- url: https://www.cargurus.com/Cars/api/1.0
  description: CarGurus API v1.0 (Car Selector, IMV, Dealer Reviews)
- url: https://www.cargurus.com/Cars/api/2.0
  description: CarGurus API v2.0 (Dealer Stats)
tags:
- name: Instant Market Value
  description: Retrieve CarGurus Instant Market Value and deal rating for cars.
paths:
  /imvRequest.action:
    post:
      tags:
      - Instant Market Value
      summary: Get Instant Market Value
      description: Retrieve the CarGurus Instant Market Value and deal rating for one or more cars. Requires an appId and authToken issued by CarGurus, plus a JSON body describing the listings.
      operationId: imvRequest
      parameters:
      - name: appId
        in: query
        required: true
        description: Application id provided by CarGurus.
        schema:
          type: string
      - name: authToken
        in: query
        required: true
        description: Authentication token provided by CarGurus.
        schema:
          type: string
      - name: body
        in: query
        required: true
        description: JSON representation of the ImvRequest object.
        schema:
          $ref: '#/components/schemas/ImvRequest'
      responses:
        '200':
          description: Instant Market Value response.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ImvResponse'
components:
  schemas:
    ImvRequestListing:
      type: object
      properties:
        vin:
          type: string
        make:
          type: string
        model:
          type: string
        trim:
          type: string
        year:
          type: integer
        transmission:
          type: string
        mileage:
          type: integer
        options:
          type: string
          description: Comma separated string of available car options.
        is_certified:
          type: boolean
        price:
          type: integer
        postal_code:
          type: string
        last_updated_timestamp:
          type: string
          description: ISO-8601 formatted timestamp with UTC offset.
    ImvResponseListing:
      type: object
      properties:
        success:
          type: boolean
        error:
          $ref: '#/components/schemas/ApiError'
        vin:
          type: string
        instant_market_value:
          type: integer
        cg_make_name:
          type: string
        cg_model_name:
          type: string
        cg_year:
          type: integer
        cg_trim_name:
          type: string
        cg_entity_id:
          type: string
        rating:
          type: string
          enum:
          - GREAT_PRICE
          - GOOD_PRICE
          - OK_PRICE
          - FAIR_PRICE
          - POOR_PRICE
          - OVERPRICED
          - OUTLIER
          - NA
    ImvRequest:
      type: object
      properties:
        listings:
          type: array
          items:
            $ref: '#/components/schemas/ImvRequestListing'
    ApiError:
      type: object
      properties:
        error_code:
          type: integer
        description:
          type: string
    ImvResponse:
      type: object
      properties:
        success:
          type: boolean
        error:
          $ref: '#/components/schemas/ApiError'
        listings:
          type: array
          items:
            $ref: '#/components/schemas/ImvResponseListing'