Counterpane

Counterpane Internet Security, Inc. was a managed security services provider founded by cryptographer Bruce Schneier, growing out of his Counterpane Systems cryptography consultancy. Counterpane pioneered Managed Security Monitoring (MSM) — outsourced, 24x7 human-staffed security operations centers that monitored customer networks and devices for intrusions, rather than selling security products. It was venture-backed, with Accel among its investors, and was acquired by BT Group in 2006, after which its operations were folded into BT's managed security business. The company is defunct as an independent entity: it operates no product, developer portal, documentation, SDKs, or API surface today. As of the 2026-07-20 enrichment probe, counterpane.com resolves (209.17.116.163, Network Solutions nameservers) but refuses HTTPS on port 443, and plain HTTP redirects to https://www.schneier.com/ — Bruce Schneier's personal site. www.counterpane.com returns HTTP 404. There is no MX, SPF, DMARC, or CAA record on the domain. This profile is retained as a historical record; there is no API surface to enrich.

Counterpane is profiled on the APIs.io network. Tagged areas include Company, Cybersecurity, Managed Security Services, Security Monitoring, and Defunct.

📡 Source on GitHub
0.0/100 minimal Agent 0/100 human only Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0
0 APIs
CompanyCybersecurityManaged Security ServicesSecurity MonitoringDefunctAcquiredHistorical

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0
Composite quality — 0.0/100 · minimal
Contract Quality 0.0 / 21
Developer Ergonomics 0.0 / 17
Access Clarity 0.0 / 17
Operational Transparency 0.0 / 11
Contract Governance 0.0 / 10
Discoverability 0.0 / 9
Regulatory Posture 0.9 / 15
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
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/counterpane: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Counterpane Domain Security

no transport/DNS hardening detected

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Other 1

Properties that don't map to a standard resource type

ParentCompany
ParentCompany

Source (apis.yml)

apis.yml Raw ↑ 
aid: counterpane
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
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/counterpane.png
name: Counterpane
description: 'Counterpane Internet Security, Inc. was a managed security services provider founded by cryptographer Bruce
  Schneier, growing out of his Counterpane Systems cryptography consultancy. Counterpane pioneered Managed Security Monitoring
  (MSM) — outsourced, 24x7 human-staffed security operations centers that monitored customer networks and devices for intrusions,
  rather than selling security products. It was venture-backed, with Accel among its investors, and was acquired by BT Group
  in 2006, after which its operations were folded into BT''s managed security business. The company is defunct as an independent
  entity: it operates no product, developer portal, documentation, SDKs, or API surface today. As of the 2026-07-20 enrichment
  probe, counterpane.com resolves (209.17.116.163, Network Solutions nameservers) but refuses HTTPS on port 443, and plain
  HTTP redirects to https://www.schneier.com/ — Bruce Schneier''s personal site. www.counterpane.com returns HTTP 404. There
  is no MX, SPF, DMARC, or CAA record on the domain. This profile is retained as a historical record; there is no API surface
  to enrich.'
url: https://raw.githubusercontent.com/api-evangelist/counterpane/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- accel
x-tier: stub
x-tier-reason: defunct-no-api-surface
x-status: defunct
x-status-note: Acquired by BT Group (2006); no independent operations and no API surface. Domain redirects to schneier.com
  as of the 2026-07-20 probe.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Cybersecurity
- Managed Security Services
- Security Monitoring
- Defunct
- Acquired
- Historical
apis: []
common:
- type: ParentCompany
  url: https://apis.io/providers/bt-com/
  name: BT Group
  x-relationship: acquired
  x-evidence: It was venture-backed, with Accel among its investors, and was acquired by BT Group in 2006, after which its
    operations were folded into BT's managed security business.
- type: DomainSecurity
  name: Counterpane domain security posture (probed)
  url: security/counterpane-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 1
  pass: local-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io

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