aid: capsule8
name: Capsule8
description: 'Capsule8 was a New York-based cybersecurity company (founded 2016) that built high-performance
  runtime visibility, detection, and response for Linux production servers and containers across on-premises
  and cloud workloads. Its open-source sensor exposed a gRPC (v0) telemetry API for subscribing to security
  events. Sophos acquired Capsule8 in July 2021 and absorbed the technology into its Adaptive Cybersecurity
  Ecosystem (Intercept X server protection, XDR, and Managed Threat Response). The capsule8.com domain now
  redirects to Sophos, the flagship open-source sensor/API repository has been removed, and no independent
  Capsule8 developer API, portal, or documentation remains live. This profile was surfaced as a Bessemer
  Venture Partners portfolio company and is retained as an acquired-company record.'
url: https://raw.githubusercontent.com/api-evangelist/capsule8/refs/heads/main/apis.yml
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://avatars.githubusercontent.com/u/22600059?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- bessemer-venture-partners
x-tier: stub
x-tier-reason: portfolio-lead
x-status: acquired
x-acquired-by: sophos
x-acquired-date: '2021-07-07'
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Cybersecurity
- Linux Security
- Runtime Security
- Container Security
- Cloud Workload Protection
- Acquired
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://capsule8.com/
- type: GitHubOrganization
  url: https://github.com/capsule8
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence