Calxeda

Calxeda was an Austin, Texas semiconductor startup — founded in 2008 as Smooth-Stone by Barry Evans, Larry Wikelius and David Borland — that built ARM-based EnergyCore system-on-chip server processors (ECX-1000, ECX-2000/Midway) aimed at low-power, high-density data center workloads. It raised roughly $90-103M from venture investors including Battery Ventures, and its silicon shipped in Boston Limited Viridis appliances and HP Project Moonshot systems. Calxeda ceased operations in December 2013 after a refinancing round fell through, and its ARM server IP resurfaced under Silver Lining Systems in December 2014. The company published no public API, developer portal, or machine-readable API artifacts, and calxeda.com is now a parked domain listed for sale, so there is no live API surface for the API Evangelist network to catalog.

Calxeda is profiled on the APIs.io network. Tagged areas include Company, Semiconductors, Hardware, Servers, and ARM.

📡 Source on GitHub

0.0/100 minimal Agent 0/100 human only Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

0 APIs

Company Semiconductors Hardware Servers ARM Data Center DefunctSystem on a ChipInfrastructure

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 0.0 / 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/calxeda: 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 →

Resources

Documentation 1

Reference material describing how the API behaves

Reference

Reference

Source (apis.yml)

aid: calxeda
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/calxeda.png
name: Calxeda
description: Calxeda was an Austin, Texas semiconductor startup — founded in 2008 as Smooth-Stone by Barry Evans, Larry Wikelius
  and David Borland — that built ARM-based EnergyCore system-on-chip server processors (ECX-1000, ECX-2000/Midway) aimed at
  low-power, high-density data center workloads. It raised roughly $90-103M from venture investors including Battery Ventures,
  and its silicon shipped in Boston Limited Viridis appliances and HP Project Moonshot systems. Calxeda ceased operations
  in December 2013 after a refinancing round fell through, and its ARM server IP resurfaced under Silver Lining Systems in
  December 2014. The company published no public API, developer portal, or machine-readable API artifacts, and calxeda.com
  is now a parked domain listed for sale, so there is no live API surface for the API Evangelist network to catalog.
url: https://raw.githubusercontent.com/api-evangelist/calxeda/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-tier: stub
x-tier-reason: defunct-no-api-surface
x-status: defunct
x-defunct-date: '2013-12-19'
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Semiconductors
- Hardware
- Servers
- ARM
- Data Center
- Defunct
- System on a Chip
- Infrastructure
tags_raw:
- Company
- Semiconductors
- Hardware
- Servers
- ARM
- Data Center
- Defunct
- System on a Chip
- Infrastructure
- Data-Center
apis: []
common:
- name: Wikipedia
  description: Encyclopedia entry covering Calxeda's history, products and shutdown.
  url: https://en.wikipedia.org/wiki/Calxeda
  type: Reference
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 0
  pass: local-v1
  notes: Company defunct since 2013-12-19; calxeda.com parked/for-sale (redirects to Afternic), no /.well-known/* (all 404),
    no GitHub org, no docs, no API. No artifacts fabricated.

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