aid: hopper-com
name: Hopper
description: >-
  Hopper is a Boston- and Montreal-based travel booking platform and B2B travel
  fintech provider serving more than 120 million travelers globally. Its
  consumer app aggregates flights, hotels, rental cars, and homes alongside
  proprietary price prediction and a family of "for any reason" fintech
  ancillaries — Price Freeze, Cancel For Any Reason (CFAR), Change For Any
  Reason, Leave For Any Reason, and Disruption Guarantee. Through its B2B
  division, Hopper Technology Solutions (HTS), the company licenses those same
  fintech ancillaries, agentic AI customer service (HTS Assist), white-label
  travel agency products (HTS Stays, HTS Cars, HTS Packages), and travel
  loyalty portals to airlines, banks, and travel providers. HTS exposes a
  documented OAuth2-secured REST API — the HTS Airline API v1.1 — for
  embedding CFAR and Disruption Guarantee contracts in airline booking flows,
  with OpenAPI-generated SDKs for Java, .NET, Angular, and iOS, plus a
  JavaScript SDK for hotel price-freeze integration.
type: Index
position: Provider
access: 3rd-Party
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Travel
  - Travel Fintech
  - Price Prediction
  - Cancel For Any Reason
  - Disruption Guarantee
  - Price Freeze
  - Airlines
  - Hotels
  - Car Rental
  - Vacation Rentals
  - Ancillary Revenue
  - B2B
  - Loyalty
  - Agentic AI
url: https://raw.githubusercontent.com/api-evangelist/hopper-com/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis:
  - aid: hopper-com:hts-airline-api
    name: HTS Airline API
    description: >-
      The Hopper Technology Solutions Airline API lets airlines embed Hopper's
      ancillary fintech products — Cancel For Any Reason (CFAR) and Disruption
      Guarantee (DG) — directly into their booking flow. Airlines call the API
      to create a user session, request CFAR or DG offers for an itinerary,
      bind an offer into a contract, take payment, update itinerary slices,
      and later exercise the contract (cancel, refund, or rebook) on behalf
      of the customer. The API is OAuth2 Client Credentials authenticated,
      uses an HC-Session-ID correlation header, and exposes 23 operations
      under https://airlines-api.hopper.com/airline/v1.1.
    humanURL: https://github.com/hopper/hc-airlines-java
    baseURL: https://airlines-api.hopper.com/airline/v1.1
    tags:
      - Airlines
      - Travel Fintech
      - Cancel For Any Reason
      - Disruption Guarantee
      - Ancillary Revenue
      - OAuth2
    properties:
      - type: OpenAPI
        url: openapi/hopper-airlines-openapi.yml
      - type: Documentation
        url: https://github.com/hopper/hc-airlines-java
      - type: SDK
        url: https://github.com/hopper/hc-airlines-java
      - type: SDK
        url: https://github.com/hopper/hts-airlines-dotnet
      - type: SDK
        url: https://github.com/hopper/hc-airlines-angular
common:
  - type: Website
    url: https://www.hopper.com
  - type: B2B
    url: https://hts.hopper.com
  - type: Product
    url: https://hts.hopper.com/cancel-for-any-reason
  - type: Product
    url: https://hts.hopper.com/disruption-assistance-for-any-reason
  - type: Product
    url: https://hts.hopper.com/hts-stays
  - type: Product
    url: https://hts.hopper.com/hts-cars
  - type: Product
    url: https://hts.hopper.com/hts-packages
  - type: Product
    url: https://hts.hopper.com/travel-loyalty-portals
  - type: Product
    url: https://hts.hopper.com/hts-assist
  - type: Company
    url: https://www.hopper.com/about
  - type: Press
    url: https://www.hopper.com/press
  - type: Careers
    url: https://www.hopper.com/careers
  - type: Contact
    url: https://hts.hopper.com/contact
  - type: GitHub
    url: https://github.com/hopper
  - type: Twitter
    url: https://twitter.com/hopper
  - type: LinkedIn
    url: https://www.linkedin.com/company/hopper
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com