aid: 9flats
name: 9flats
description: '9flats is a European vacation-rental marketplace, founded in Hamburg, Germany in 2010, that
  lists privately-owned apartments, houses and rooms for short-term stays and takes bookings directly
  from travellers. It operates 9flats.com in multiple languages and, in 2016, combined with its Berlin-based
  competitor Wimdu. 9flats published a public read API (v1, later v3) covering place search, place detail,
  photos, prices, reviews, availability calendars, user profiles, favourites and bookings, authenticated
  with OAuth 1.0a and shipped with a first-party Ruby SDK. That developer surface has decayed: the SDK
  was last released in 2011 and is marked unsupported by its own maintainers, and the API reference site
  the SDK links to has been deleted.'
url: https://raw.githubusercontent.com/api-evangelist/9flats/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: 'enrichment pass 2026-09-05: first-party Ruby SDK, GitHub org and OAuth 1.0a auth model
  found and captured; no machine-readable contract published and the live host is behind a Cloudflare
  managed challenge'
specificationVersion: '0.20'
created: '2026-09-05'
modified: '2026-09-05'
tags:
- Company
- Travel
- Hospitality
- Vacation Rentals
- Short-Term Rental
- Accommodation
- Marketplace
- Booking
- Europe
apis:
- aid: 9flats:9flats-api
  name: 9flats API
  description: 'The 9flats read API over the marketplace''s listing data: search places, fetch a place
    with its photos, prices, reviews and monthly availability calendar, and fetch a user with their favourites
    and (for the authenticated user) their bookings. Authenticated with OAuth 1.0a plus a client_id query
    parameter; responses are JSON envelopes keyed by resource name with links[] rel/href navigation and
    page-number pagination. Nine operations, all GET — no write surface is published. Reconstructed from
    9flats'' own client library, because the reference site the library points at has been withdrawn.'
  humanURL: https://github.com/9flats/nineflats-api
  baseURL: https://www.9flats.com/api/v1
  position: Producing
  tags:
  - Travel
  - Vacation Rentals
  - Search
  - Listings
  - Availability
  - Reviews
  - Booking
  tags_raw:
  - Travel
  - Vacation Rentals
  - Search
  - Listings
  - Availability
  - Reviews
  - Bookings
  properties:
  - type: SourceCode
    url: https://github.com/9flats/nineflats-api
  - type: SDKs
    url: packages/9flats-packages.yml
  - type: Authentication
    url: authentication/9flats-authentication.yml
  - type: Conventions
    url: conventions/9flats-conventions.yml
  - type: DataModel
    url: data-model/9flats-data-model.yml
  - type: RateLimits
    url: rate-limits/9flats-rate-limits.yml
  x-status: Unverified as reachable. The documented base host answers HTTP 403 behind a Cloudflare managed
    challenge to every non-browser client, so no operation could be called; the surface is described from
    the provider's own SDK source, not from a live response.
  x-contract: none published — no OpenAPI, AsyncAPI, GraphQL SDL, WSDL, .proto or Postman collection was
    found
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/9flats-domain-security.yml
- type: Website
  url: https://www.9flats.com
- type: GitHubOrganization
  url: https://github.com/9flats
- type: SourceCode
  url: https://github.com/9flats/nineflats-api
- type: Packages
  url: packages/9flats-packages.yml
- type: SDKs
  url: packages/9flats-packages.yml
- type: Authentication
  url: authentication/9flats-authentication.yml
- type: Conventions
  url: conventions/9flats-conventions.yml
- type: DataModel
  url: data-model/9flats-data-model.yml
- type: Conformance
  url: conformance/9flats-conformance.yml
- type: Lifecycle
  url: lifecycle/9flats-lifecycle.yml
- type: RateLimits
  url: rate-limits/9flats-rate-limits.yml
- type: Plans
  url: plans/9flats-plans-pricing.yml
- type: LLMsTxt
  url: llms/9flats-llms.txt
x-enrichment:
  date: '2026-09-05'
  status: enriched
  artifacts_added: 11
  pass: local-v3