AeroFS

AeroFS was an enterprise file sync-and-share and secure collaboration product built by Air Computing Inc., founded in 2010 out of Y Combinator with seed backing from Andreessen Horowitz (a16z Seed), SV Angel, Avalon Ventures, and angels including Chris Sacca, Maynard Webb, Jerry Yang, and Paul Buchheit. Its differentiator was peer-to-peer, private-cloud file sync that kept data on a company's own devices rather than a vendor's servers. Air Computing later pivoted to a team collaboration app called Amium. In 2017 the company merged with Redbooth (CEO and co-founder Yuri Sagalov became CEO of Redbooth), Amium was shut down on December 15, 2017, and the AeroFS technology was folded into Redbooth's product line. The standalone AeroFS product, developer program, and API are no longer operated; the aerofs.com domain is now a parked GoDaddy "for sale" page. This API Evangelist profile is retained as a historical/defunct-company record rather than an active developer surface.

AeroFS is profiled on the APIs.io network. Tagged areas include Company, Defunct, Acquired, File Sync, and File Sharing.

🌐 Visit website 📡 Source on GitHub

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

0 APIs

CompanyDefunctAcquiredFile SyncFile SharingEnterprise CollaborationCloud StoragePrivate CloudY Combinator

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/aerofs: 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: aerofs
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/aerofs.png
name: AeroFS
description: AeroFS was an enterprise file sync-and-share and secure collaboration product built by Air Computing Inc., founded
  in 2010 out of Y Combinator with seed backing from Andreessen Horowitz (a16z Seed), SV Angel, Avalon Ventures, and angels
  including Chris Sacca, Maynard Webb, Jerry Yang, and Paul Buchheit. Its differentiator was peer-to-peer, private-cloud file
  sync that kept data on a company's own devices rather than a vendor's servers. Air Computing later pivoted to a team collaboration
  app called Amium. In 2017 the company merged with Redbooth (CEO and co-founder Yuri Sagalov became CEO of Redbooth), Amium
  was shut down on December 15, 2017, and the AeroFS technology was folded into Redbooth's product line. The standalone AeroFS
  product, developer program, and API are no longer operated; the aerofs.com domain is now a parked GoDaddy "for sale" page.
  This API Evangelist profile is retained as a historical/defunct-company record rather than an active developer surface.
url: https://raw.githubusercontent.com/api-evangelist/aerofs/refs/heads/main/apis.yml
x-type: company
x-source: a16z-portfolio
x-tier: stub
x-tier-reason: portfolio-lead
x-status: defunct
x-acquired-by: Redbooth
x-legal-entity: Air Computing Inc.
x-founded: '2010'
x-shutdown: '2017'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-17'
tags:
- Company
- Defunct
- Acquired
- File Sync
- File Sharing
- Enterprise Collaboration
- Cloud Storage
- Private Cloud
- Y Combinator
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