JustBook

JustBook was a Berlin, Germany based mobile hotel booking startup that offered same-day and last-minute hotel deals at discounted rates, in a model similar to HotelTonight. Founded in 2012, it grew to cover last-minute inventory across more than 120 cities in Europe and the United States through its iOS, Android, and web apps. The company was backed by Creandum, DN Capital, and Earlybird Venture Capital (among roughly 21 investors, raising about $3.74M) and was acquired by UK luxury-travel company Secret Escapes in January 2014 to strengthen its German-market and mobile presence. JustBook no longer operates as an independent brand and publishes no public developer program, API, or documentation; this profile is retained as a network record of a defunct, acquired Creandum portfolio company. Note: the justbook.de domain is now an unrelated book price-comparison site (BookFinder) and is not connected to this company.

JustBook is profiled on the APIs.io network. Tagged areas include Company, Consumer, Travel, Hospitality, and Hotels.

6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyConsumerTravelHospitalityHotelsBookingMobileAcquiredDefunct

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/justbook: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Source (apis.yml)

apis.yml Raw ↑
aid: justbook
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/justbook.png
name: JustBook
description: 'JustBook was a Berlin, Germany based mobile hotel booking startup that offered same-day and last-minute hotel
  deals at discounted rates, in a model similar to HotelTonight. Founded in 2012, it grew to cover last-minute inventory across
  more than 120 cities in Europe and the United States through its iOS, Android, and web apps. The company was backed by Creandum,
  DN Capital, and Earlybird Venture Capital (among roughly 21 investors, raising about $3.74M) and was acquired by UK luxury-travel
  company Secret Escapes in January 2014 to strengthen its German-market and mobile presence. JustBook no longer operates
  as an independent brand and publishes no public developer program, API, or documentation; this profile is retained as a
  network record of a defunct, acquired Creandum portfolio company. Note: the justbook.de domain is now an unrelated book
  price-comparison site (BookFinder) and is not connected to this company.'
url: https://raw.githubusercontent.com/api-evangelist/justbook/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- creandum
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-status-reason: acquired-then-wound-down
x-acquired-by: secret-escapes
x-acquired-date: 2014-01
x-headquarters: Berlin, Germany
x-founded: '2012'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Consumer
- Travel
- Hospitality
- Hotels
- Booking
- Mobile
- Acquired
- Defunct
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence