Loose Cubes

Loosecubes, Inc. was a membership-based marketplace often described as the "Airbnb for shared office space" — it connected people looking for a place to work with companies that had vacant desks and coworking space. Founded in 2010 in Brooklyn, New York by Campbell McKellar (Walmsley) and Anna Thomas, it raised roughly $9M total, including a $7.8M Series A led by New Enterprise Associates with Revolution Ventures and Battery Ventures participating. The company shut down and permanently closed in late 2012. This profile was surfaced as a Battery Ventures portfolio lead; enrichment found no live API surface — the business is defunct and the loosecubes.com domain is now held by an unrelated owner.

Loose Cubes is profiled on the APIs.io network. Tagged areas include Company, Co-Working, Real-Estate, Marketplace, and Workspace.

🌐 Visit website 📡 Source on GitHub

5.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

Company Co-Working Real-Estate Marketplace Workspace Defunct

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 5.0/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.0 / 12

Discoverability 5.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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/loose-cubes: 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)

aid: loose-cubes
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/loose-cubes.png
name: Loose Cubes
description: Loosecubes, Inc. was a membership-based marketplace often described as the "Airbnb for shared office space" —
  it connected people looking for a place to work with companies that had vacant desks and coworking space. Founded in 2010
  in Brooklyn, New York by Campbell McKellar (Walmsley) and Anna Thomas, it raised roughly $9M total, including a $7.8M Series
  A led by New Enterprise Associates with Revolution Ventures and Battery Ventures participating. The company shut down and
  permanently closed in late 2012. This profile was surfaced as a Battery Ventures portfolio lead; enrichment found no live
  API surface — the business is defunct and the loosecubes.com domain is now held by an unrelated owner.
url: https://raw.githubusercontent.com/api-evangelist/loose-cubes/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-defunct-note: Loosecubes, Inc. permanently closed in 2012; no API surface. loosecubes.com now resolves to an unrelated third-party
  site.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Co-Working
- Real-Estate
- Marketplace
- Workspace
- Defunct
tags_raw:
- Company
- Coworking
- Real Estate
- Marketplace
- Workspace
- Defunct
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: nochange
  artifacts_added: 0
  pass: local-v1