Smartcar Vehicles API

openapi: 3.0.3
info:
  title: Smartcar Vehicles API
  description: >-
    The Smartcar Vehicles API provides a standardized REST interface for
    accessing connected vehicle data and sending commands to vehicles across
    multiple OEMs through a single integration. Retrieve signals such as
    battery level, odometer, location, fuel, engine oil life, and lock status,
    or issue commands like lock/unlock doors, start/stop charging, set charge
    limits, and set navigation destinations. Authentication uses OAuth 2.0
    with user-granted permissions per vehicle.
  version: 2.0.0
  termsOfService: https://smartcar.com/terms/
  contact:
    name: Smartcar Support
    url: https://smartcar.com/docs/
    email: [email protected]
  license:
    name: Smartcar API License
    url: https://smartcar.com/terms/
servers:
  - url: https://vehicle.api.smartcar.com/v2.0
    description: Smartcar Vehicle API v2.0
  - url: https://management.api.smartcar.com/v3
    description: Smartcar Management API v3
tags:
  - name: Connections
    description: Manage vehicle connections and user authorizations
  - name: Vehicle Data
    description: Read vehicle signals and status data
  - name: Vehicle Commands
    description: Send commands to control vehicle functions
  - name: Charging
    description: EV charging management and status
  - name: Security
    description: Vehicle security, locking and unlocking
  - name: Navigation
    description: Vehicle navigation and destination setting
  - name: Compatibility
    description: Check vehicle compatibility with Smartcar
security:
  - BearerAuth: []
paths:
  /connections:
    get:
      operationId: listConnections
      summary: List Connections
      description: Returns all vehicle connections associated with the authorized user.
      tags:
        - Connections
      responses:
        '200':
          description: List of vehicle connections
          content:
            application/json:
              schema:
                type: object
                properties:
                  connections:
                    type: array
                    items:
                      $ref: '#/components/schemas/Connection'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /connections/{id}:
    get:
      operationId: getConnection
      summary: Get Connection
      description: Retrieves a specific vehicle connection by connection ID.
      tags:
        - Connections
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
          description: Connection ID
      responses:
        '200':
          description: Connection details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Connection'
        '404':
          description: Connection not found
    delete:
      operationId: removeConnection
      summary: Remove Connection
      description: Removes a vehicle connection, revoking access to that vehicle.
      tags:
        - Connections
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
          description: Connection ID
      responses:
        '200':
          description: Connection removed
        '404':
          description: Not found
  /users/{id}:
    delete:
      operationId: removeUser
      summary: Remove User
      description: Removes all vehicle connections for a specific user.
      tags:
        - Connections
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
          description: User ID
      responses:
        '200':
          description: User removed
  /vehicles/{id}:
    get:
      operationId: getVehicle
      summary: Get Vehicle
      description: Retrieves attributes and metadata for a specific vehicle.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
          description: Vehicle ID
      responses:
        '200':
          description: Vehicle attributes
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Vehicle'
        '401':
          description: Unauthorized
        '404':
          description: Vehicle not found
  /vehicles/{id}/signals:
    get:
      operationId: getSignals
      summary: Get Vehicle Signals
      description: Reads all available signals (telemetry data) for a vehicle.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
          description: Vehicle ID
      responses:
        '200':
          description: Vehicle signals
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Signals'
  /vehicles/{id}/battery:
    get:
      operationId: getBatteryLevel
      summary: Get Battery Level
      description: >-
        Retrieves the current battery level and estimated range for an electric
        or hybrid vehicle. Requires the read_battery permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Battery status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Battery'
        '409':
          description: Vehicle state conflict
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
  /vehicles/{id}/charge:
    get:
      operationId: getChargeStatus
      summary: Get Charge Status
      description: >-
        Retrieves the current charging status of an EV including plug-in state
        and charge progression. Requires the read_charge permission.
      tags:
        - Charging
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Charging status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChargeStatus'
    post:
      operationId: controlCharge
      summary: Start Or Stop Charging
      description: >-
        Starts or stops charging for an electric vehicle. Requires the
        control_charge permission.
      tags:
        - Charging
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [action]
              properties:
                action:
                  type: string
                  enum: [START, STOP]
                  description: Whether to start or stop charging
      responses:
        '200':
          description: Command result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommandResult'
  /vehicles/{id}/charge/limit:
    get:
      operationId: getChargeLimit
      summary: Get Charge Limit
      description: Retrieves the current charge limit setting for an EV.
      tags:
        - Charging
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Charge limit
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ChargeLimit'
    post:
      operationId: setChargeLimit
      summary: Set Charge Limit
      description: >-
        Sets the maximum battery charge level (as a percentage) for an EV.
        Requires the control_charge permission.
      tags:
        - Charging
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [limit]
              properties:
                limit:
                  type: number
                  minimum: 0.5
                  maximum: 1.0
                  description: Charge limit as a decimal (0.5 to 1.0)
      responses:
        '200':
          description: Command result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommandResult'
  /vehicles/{id}/security:
    get:
      operationId: getLockStatus
      summary: Get Lock Status
      description: >-
        Retrieves the current lock/unlock status of the vehicle's doors, windows,
        storage, sunroof, and charge port. Requires the read_security permission.
      tags:
        - Security
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Security status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SecurityStatus'
    post:
      operationId: controlSecurity
      summary: Lock Or Unlock Doors
      description: >-
        Locks or unlocks the vehicle's doors remotely. Requires the
        control_security permission.
      tags:
        - Security
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [action]
              properties:
                action:
                  type: string
                  enum: [LOCK, UNLOCK]
                  description: Whether to lock or unlock the vehicle
      responses:
        '200':
          description: Command result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommandResult'
  /vehicles/{id}/location:
    get:
      operationId: getLocation
      summary: Get Location
      description: >-
        Retrieves the current GPS coordinates of the vehicle.
        Requires the read_location permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Vehicle location
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Location'
  /vehicles/{id}/odometer:
    get:
      operationId: getOdometer
      summary: Get Odometer
      description: >-
        Retrieves the vehicle's current odometer reading.
        Requires the read_odometer permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Odometer reading
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Odometer'
  /vehicles/{id}/fuel:
    get:
      operationId: getFuelTank
      summary: Get Fuel Tank
      description: >-
        Retrieves fuel tank status including percentage remaining, amount
        remaining, and estimated range. Requires the read_fuel permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Fuel tank status
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FuelTank'
  /vehicles/{id}/engine/oil:
    get:
      operationId: getEngineOil
      summary: Get Engine Oil Life
      description: >-
        Retrieves the remaining engine oil life as a percentage.
        Requires the read_engine_oil permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Engine oil life
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EngineOil'
  /vehicles/{id}/diagnostics/dtcs:
    get:
      operationId: getDiagnosticCodes
      summary: Get Diagnostic Trouble Codes
      description: >-
        Retrieves active diagnostic trouble codes (DTCs) from the vehicle's
        OBD-II system. Requires the read_diagnostics permission.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Diagnostic trouble codes
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DiagnosticCodes'
  /vehicles/{id}/permissions:
    get:
      operationId: getPermissions
      summary: Get Vehicle Permissions
      description: Lists all permissions granted for the vehicle.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Granted permissions
          content:
            application/json:
              schema:
                type: object
                properties:
                  permissions:
                    type: array
                    items:
                      type: string
  /vehicles/{id}/batch:
    post:
      operationId: batchRequests
      summary: Batch Vehicle Data Requests
      description: >-
        Sends multiple data requests in a single API call and returns
        all responses together, reducing round-trips.
      tags:
        - Vehicle Data
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                requests:
                  type: array
                  items:
                    type: object
                    properties:
                      path:
                        type: string
                        description: Endpoint path to batch (e.g., /battery, /fuel)
      responses:
        '200':
          description: Batch response
          content:
            application/json:
              schema:
                type: object
                properties:
                  responses:
                    type: array
                    items:
                      type: object
  /vehicles/{id}/commands/set-destination:
    post:
      operationId: setDestination
      summary: Set Navigation Destination
      description: >-
        Sets a navigation destination for the vehicle.
        Requires the control_navigation permission.
      tags:
        - Navigation
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required: [latitude, longitude]
              properties:
                latitude:
                  type: number
                  description: Destination latitude
                longitude:
                  type: number
                  description: Destination longitude
                address:
                  type: string
                  description: Optional human-readable destination address
      responses:
        '200':
          description: Command result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommandResult'
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: OAuth 2.0 access token obtained via Authorization Code or Client Credentials flow
  schemas:
    Connection:
      type: object
      properties:
        id:
          type: string
          description: Unique connection identifier
        vehicleId:
          type: string
          description: Associated vehicle identifier
        userId:
          type: string
          description: User who authorized this connection
        status:
          type: string
          enum: [ACTIVE, REVOKED]
        created:
          type: string
          format: date-time
    Vehicle:
      type: object
      properties:
        id:
          type: string
          description: Unique vehicle identifier
        make:
          type: string
          description: Vehicle manufacturer (e.g., Tesla, Ford)
        model:
          type: string
          description: Vehicle model name
        year:
          type: integer
          description: Vehicle model year
        vin:
          type: string
          description: Vehicle identification number
    Signals:
      type: object
      properties:
        battery:
          $ref: '#/components/schemas/Battery'
        charge:
          $ref: '#/components/schemas/ChargeStatus'
        location:
          $ref: '#/components/schemas/Location'
        odometer:
          $ref: '#/components/schemas/Odometer'
        fuel:
          $ref: '#/components/schemas/FuelTank'
    Battery:
      type: object
      properties:
        percentRemaining:
          type: number
          minimum: 0
          maximum: 1
          description: Battery charge level as a decimal (0.0 to 1.0)
        range:
          type: number
          description: Estimated remaining range in kilometers
      required: [percentRemaining, range]
    ChargeStatus:
      type: object
      properties:
        isPluggedIn:
          type: boolean
          description: Whether the vehicle is currently plugged in
        state:
          type: string
          enum: [CHARGING, FULLY_CHARGED, NOT_CHARGING]
          description: Current charging state
      required: [isPluggedIn, state]
    ChargeLimit:
      type: object
      properties:
        limit:
          type: number
          minimum: 0.5
          maximum: 1.0
          description: Maximum charge limit as a decimal
      required: [limit]
    SecurityStatus:
      type: object
      properties:
        isLocked:
          type: boolean
          description: Whether the vehicle is locked
        doors:
          type: array
          items:
            type: object
            properties:
              type:
                type: string
              status:
                type: string
                enum: [LOCKED, UNLOCKED, UNKNOWN]
    Location:
      type: object
      properties:
        latitude:
          type: number
          description: GPS latitude coordinate
        longitude:
          type: number
          description: GPS longitude coordinate
      required: [latitude, longitude]
    Odometer:
      type: object
      properties:
        distance:
          type: number
          description: Odometer reading in kilometers
      required: [distance]
    FuelTank:
      type: object
      properties:
        percentRemaining:
          type: number
          minimum: 0
          maximum: 1
          description: Fuel level as a decimal
        amountRemaining:
          type: number
          description: Fuel remaining in liters
        range:
          type: number
          description: Estimated remaining range in kilometers
      required: [percentRemaining]
    EngineOil:
      type: object
      properties:
        lifeRemaining:
          type: number
          minimum: 0
          maximum: 1
          description: Engine oil life remaining as a decimal
      required: [lifeRemaining]
    DiagnosticCodes:
      type: object
      properties:
        activeCodes:
          type: array
          items:
            type: object
            properties:
              code:
                type: string
                description: OBD-II DTC code (e.g., P0300)
              timestamp:
                type: string
                format: date-time
    CommandResult:
      type: object
      properties:
        status:
          type: string
          enum: [success, error, pending]
        message:
          type: string
          description: Human-readable result message
    Error:
      type: object
      properties:
        type:
          type: string
          description: Error category
        code:
          type: string
          description: Short error identifier
        title:
          type: string
          description: Human-readable error title
        detail:
          type: string
          description: Detailed error description
        status:
          type: integer
          description: HTTP status code
        resolution:
          type: string
          enum: [RETRY_LATER, REAUTHENTICATE, CONTACT_SUPPORT]
        suggestedUserMessage:
          type: string