Argon Networks

Argon Networks was a late-1990s networking infrastructure startup that developed a high-speed routing switch for what was then described as the next-generation multi-service Internet, combining IP routing with ATM switching in a single carrier-class platform. The company was venture backed by Canaan Partners (Series B, partner Eric Young), Matrix Partners, New Enterprise Associates and Greylock. Siemens acquired Argon Networks in March 1999 in a deal reported at roughly $240 million and folded the team into Unisphere Solutions / Unisphere Networks, the carrier-infrastructure unit later acquired by Juniper Networks in 2002. Argon Networks predates the public web API era: it shipped carrier networking hardware, never operated a developer program, and has no surviving website, documentation, SDKs or API surface. This profile is retained as a historical venture-portfolio record rather than as an active API provider.

Argon Networks is profiled on the APIs.io network. Tagged areas include Company, Networking, Internet Infrastructure, Routing, and Switching.

🌐 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

CompanyNetworkingInternet InfrastructureRoutingSwitchingTelecommunicationsAcquiredDefunct

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

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Resources

Other 1

Properties that don't map to a standard resource type

VentureBacking

VentureBacking

Source (apis.yml)

aid: argon
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/argon.png
name: Argon Networks
description: 'Argon Networks was a late-1990s networking infrastructure startup that developed a high-speed routing switch
  for what was then described as the next-generation multi-service Internet, combining IP routing with ATM switching in a
  single carrier-class platform. The company was venture backed by Canaan Partners (Series B, partner Eric Young), Matrix
  Partners, New Enterprise Associates and Greylock. Siemens acquired Argon Networks in March 1999 in a deal reported at roughly
  $240 million and folded the team into Unisphere Solutions / Unisphere Networks, the carrier-infrastructure unit later acquired
  by Juniper Networks in 2002. Argon Networks predates the public web API era: it shipped carrier networking hardware, never
  operated a developer program, and has no surviving website, documentation, SDKs or API surface. This profile is retained
  as a historical venture-portfolio record rather than as an active API provider.'
url: https://raw.githubusercontent.com/api-evangelist/argon/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- canaan-partners
- matrix-partners
x-tier: stub
x-tier-reason: defunct-no-api-surface
x-status: acquired
x-acquired-by: Siemens
x-acquired-date: 1999-03
x-successor: Unisphere Networks (later acquired by Juniper Networks, 2002)
x-api-surface: none
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Networking
- Internet Infrastructure
- Routing
- Switching
- Telecommunications
- Acquired
- Defunct
apis: []
common:
- type: VentureBacking
  name: Canaan Partners portfolio profile
  url: https://www.canaan.com/companies/argon-networks
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: nochange
  artifacts_added: 0
  pass: local-v1
  notes: Identified as Argon Networks, acquired by Siemens in March 1999. No live domain, no developer program, no API surface.
    No artifacts producible without fabrication.
  probes:
  - url: https://argon.io/
    status: 301
    result: redirects to aquasec.com (unrelated Argon, acquired by Aqua Security)
  - url: https://argonnetworks.com/
    status: 0
    result: no HTTPS response (parked A record 85.13.148.240)
  - url: https://www.argonnetworks.com/
    status: 0
    result: no HTTPS response
  - url: https://argon.net/
    status: 0
    result: no HTTPS response
  - url: https://argon.ai/
    status: 0
    result: no response
  - url: https://argon.dev/
    status: 0
    result: no response
  - url: https://argon.com/
    status: 0
    result: no response