openapi: 3.2.0
info:
  title: Booking.com Demand Common/autocomplete API
  version: 3.2-Beta
  summary: '**Beta version – experimental endpoints**


    This API version is **currently in Beta** and is offered to a limited set of pilot affiliate partners. Access is granted on request via your Booking.com account manager.


    > ⚠️ **Important:** This API is **under active development**. Endpoints, request/response structures, and functionality may change without prior notice. Specifications are updated frequently during the pilot phase.


    - Consult the [Changelog](/demand/docs/whats-new/changelog) for the latest updates.

    - All requests **require authentication** using your Affiliate ID and token credentials.'
  description: Use this endpoint to retrieve ranked suggestions based on a free-text query. Designed for real-time "as-you-type" autocomplete experiences.
servers:
- url: https://demandapi.booking.com/3.2
  description: Production environment – use for live integrations.
- url: https://demandapi-sandbox.booking.com/3.2
  description: Sandbox environment – use for testing and validation.
security:
- BearerAuth: []
tags:
- name: Common/autocomplete
  x-displayName: Autocomplete
  description: Use this endpoint to retrieve ranked suggestions based on a free-text query. Designed for real-time "as-you-type" autocomplete experiences.
paths:
  /common/autocomplete:
    post:
      summary: Retrieve autocomplete suggestions
      description: Returns ranked suggestions based on the free-text query, destination popularity, and the provided context. This endpoint is designed for real-time "as-you-type" autocomplete experiences.\n\nSupports prefix matching with basic typo tolerance and is optimised for low-latency search.\n\nYou can optionally restrict results by destination type using filters.types.\n\nEach suggestion includes a destination identifier, localised name, and geographic context.
      operationId: /common/autocomplete
      parameters:
      - $ref: '#/components/parameters/AffiliateIdHeader'
      tags:
      - Common/autocomplete
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/autoCompleteInput'
            examples:
              default:
                $ref: '#/components/examples/input'
      responses:
        '200':
          description: Successful response with ranked suggestions.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/autoCompleteOutput'
              examples:
                default:
                  $ref: '#/components/examples/output'
        '400':
          description: The request is invalid or contains unsupported parameter values (for example, query too short or invalid `filters.types`). Refer to the [Error handling section](/demand/docs/support/error-handling/about-errors) for more details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/error_response'
        '500':
          description: Internal server error.
components:
  schemas:
    autoCompleteResult:
      title: AutoCompleteResultOutput
      description: Represents a single ranked autocomplete suggestion with a display name in the requested language and geographic context.
      type: object
      properties:
        type:
          $ref: '#/components/schemas/destinationType'
        name:
          description: Display name in the requested language. Only one language key is returned.
          $ref: '#/components/schemas/translatedString'
        id:
          description: The identifier of the destination. The format depends on the destination type.
          type: string
        location:
          $ref: '#/components/schemas/autoCompleteLocation'
    languageId:
      description: 'A [IETF language tag code](https://en.wikipedia.org/wiki/IETF_language_tag) that uniquely identifies a supported human language or dialect. **Note:** Demand API only accepts lowercase for the language codes. Examples: "nl" for Dutch/Nederlands or "en-us" for English (US). To retrieve the full list of supported languages, call the `/common/languages` endpoint in the same Demand API version you are using.'
      type: string
      pattern: ^[a-z]{2}(-[a-z]{2})?$
      example: en-us
    cityId:
      description: A signed integer number that uniquely identifies a city. The full list can be obtained by calling <a href="/demand/docs/open-api/demand-api/commonlocations/common/locations/cities" target="_blank">common/locations/cities</a>.
      type: integer
    autoCompleteFilters:
      title: AutoCompleteFilters
      description: Filters to restrict autocomplete results.
      type: object
      properties:
        types:
          description: Restricts results to the specified destination types. If omitted, all destination types are considered.
          type: array
          items:
            $ref: '#/components/schemas/destinationType'
    autoCompleteInput:
      title: AutoCompleteInput
      type: object
      required:
      - query
      - country
      properties:
        query:
          description: Free-text search query used to generate suggestions. Leading and trailing whitespace is ignored. Must contain between 3 and 200 characters.
          type: string
          minLength: 3
          maxLength: 200
          examples:
          - ams
          - amster
          - amsterdam
        language:
          description: Language code used to localise names in the response. Only one language can be specified per request.
          $ref: '#/components/schemas/languageId'
          default: en-gb
        country:
          description: ISO 3166-1 alpha-2 country code used as the primary search context for autocomplete ranking. This field is required.
          $ref: '#/components/schemas/countryId'
        filters:
          description: Restricts results to the specified destination types. If omitted, all types are included. It should not be an empty object.
          $ref: '#/components/schemas/autoCompleteFilters'
    autoCompleteLocation:
      title: AutoCompleteLocation
      description: Geographic context of the suggestion, including city, country and coordinates.
      type: object
      properties:
        city:
          $ref: '#/components/schemas/cityId'
        city_name:
          $ref: '#/components/schemas/translatedString'
        coordinates:
          $ref: '#/components/schemas/dataTypes_coordinates'
        country:
          $ref: '#/components/schemas/countryId'
        country_name:
          $ref: '#/components/schemas/translatedString'
    translatedString:
      title: TranslatedString
      description: A string localised in multiple languages.
      type: object
      patternProperties:
        ^[a-z]{2}(-[a-z]{2})$:
          description: The content localised in this language.
          type:
          - string
          - 'null'
    requestId:
      description: Uniquely identifies the request. Please provide this identifier when contacting support.
      type: string
    error_response:
      title: ErrorResponse
      type: object
      properties:
        request_id:
          $ref: '#/components/schemas/requestId'
        errors:
          type: array
          items:
            type: object
            properties:
              id:
                type: string
              message:
                type: string
            required:
            - id
            - message
      required:
      - request_id
      - errors
    autoCompleteOutput:
      title: AutoCompleteOutput
      type: object
      properties:
        request_id:
          $ref: '#/components/schemas/requestId'
        data:
          type: array
          items:
            $ref: '#/components/schemas/autoCompleteResult'
    dataTypes_coordinates:
      title: Coordinates
      type: object
      properties:
        latitude:
          type: number
          format: double
        longitude:
          type: number
          format: double
    countryId:
      description: 'A two-letter code that uniquely identifies a country. This code is defined by the ISO 3166-1 alpha-2 standard (ISO2) as described here: https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2. The full list can be obtained by calling <a href="/demand/docs/open-api/demand-api/commonlocations/common/locations/countries" target="_blank">common/locations/countries</a>.'
      type: string
      pattern: ^[a-z]{2}$
      example: nl
    destinationType:
      description: The type of destination.
      type: string
      enum:
      - airport
      - hotel
      - landmark
      - city
      - district
      - region
      - country
  examples:
    output:
      request_id: 01khs9q981dta9fptx2edvq9r3
      data:
      - type: city
        name:
          en-gb: Amsterdam
        id: '-2140479'
        location:
          city: -2140479
          city_name:
            en-gb: Amsterdam
          coordinates:
            latitude: 52.378281
            longitude: 4.90007
          country: nl
          country_name:
            en-gb: Netherlands
      - type: hotel
        name:
          en-gb: Hotel Zuiderduin
        id: '10531'
        location:
          city: -2143979
          city_name:
            en-gb: Egmond aan Zee
          coordinates:
            latitude: 52.6163698767988
            longitude: 4.62512746453285
          country: nl
          country_name:
            en-gb: Netherlands
    input:
      query: amsterdam
      language: en-gb
      country: nl
      filters:
        types:
        - city
  parameters:
    AffiliateIdHeader:
      in: header
      name: X-Affiliate-Id
      schema:
        type: integer
      required: true
      description: Include here your Affiliate identifier number
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      bearerFormat: string
x-tagGroups:
- name: Travel services
  tags:
  - Accommodations
  - Attractions
  - Cars
  - Transfers
- name: Common
  tags:
  - Common/autocomplete
  - Common/locations
  - Common/payments
  - Common/languages
- name: Orders
  tags:
  - Orders
- name: Messaging
  tags:
  - Messages
  - Conversations
  - Attachments