HotelMonitor Price Check API

openapi: 3.2.0
info:
  title: HotelMonitor agent Price Check API
  version: 1.2.0
  description: 'Read-only answers about hotel prices, for AI assistants. Prices are tax-inclusive nightly figures from HotelMonitor''s own price scans (the Agoda share is an estimate of tax). They are past observations, not live quotes. Results include page_url, HotelMonitor''s price-history page, and where available book_url, a booking-site link with the dates filled in, so the person can confirm the current price. Booking links are affiliate links; HotelMonitor may earn a commission at no extra cost to the person. Rate limits per client (IP address, IPv6 by /64, plus user agent), shared with the MCP server: 60 requests a minute and 2,000 a day; over either you get 429 with Retry-After. X-RateLimit-* headers describe the per-minute window and RateLimit-Policy states both. The same tools are available over MCP at https://hotelmonitor.co.uk/mcp.'
  contact:
    name: HotelMonitor
    url: https://hotelmonitor.co.uk/developers#mcp
servers:
- url: https://hotelmonitor.co.uk/api/agent/v1
tags:
- name: Price Check
paths:
  /price-check:
    get:
      operationId: checkHotelPrice
      summary: Is this price high, low or usual for this hotel in that month?
      description: Compares a price with the hotel's own usual price for the check-in month. Returns verdict null (reason hotel_not_tracked or not_enough_data) when there are not enough scans of that hotel, with the destination's month figure as labelled context. book_url is included when checkout is given.
      parameters:
      - name: hotel
        in: query
        required: true
        schema:
          type: string
          maxLength: 120
      - name: destination
        in: query
        required: true
        schema:
          type: string
        description: Destination slug, e.g. tenerife, new-york. "New York" and new_york are accepted too.
      - name: checkin
        in: query
        required: true
        schema:
          type: string
          format: date
      - name: checkout
        in: query
        required: false
        schema:
          type: string
          format: date
        description: Required when per=stay. At most 30 nights.
      - name: price
        in: query
        required: true
        schema:
          type: number
          exclusiveMinimum: 0
        description: In GBP.
      - name: per
        in: query
        required: true
        schema:
          type: string
          enum:
          - night
          - stay
        description: Whether price is per night or for the whole stay.
      - name: adults
        in: query
        required: false
        schema:
          type: integer
          minimum: 1
          maximum: 8
          default: 2
      - $ref: '#/components/parameters/via'
      responses:
        '200':
          description: verdict below_usual, about_usual, above_usual, or null with reason. Includes page_url, and book_url when checkout is given.
        '400':
          description: Invalid input. An unknown destination returns the UnknownDestination shape; other errors the Error shape.
          content:
            application/json:
              schema:
                oneOf:
                - $ref: '#/components/schemas/UnknownDestination'
                - $ref: '#/components/schemas/Error'
        '429':
          description: Rate limited. See Retry-After.
      tags:
      - Price Check
components:
  parameters:
    via:
      name: via
      in: query
      required: false
      schema:
        type: string
        maxLength: 32
      description: Optional short name of your app or assistant (lower-case letters, digits, - or _), used in booking links so we can see where visits come from. Anything else is ignored and agent_api is used.
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
        hint:
          type: string
      required:
      - error
    UnknownDestination:
      type: object
      properties:
        error:
          type: string
          const: unknown_destination
        requested:
          type: string
        suggestions:
          type: array
          items:
            type: string
          description: Up to 5 valid slugs close to the one asked for.
        valid_destinations:
          type: array
          items:
            type: string
        hint:
          type: string
      required:
      - error
      - suggestions
      - valid_destinations
      - hint