Cardiac Dimensions

Cardiac Dimensions is a privately held structural-heart medical device company headquartered in Kirkland, Washington, developing transcatheter therapies for patients with heart failure and functional mitral regurgitation. Its lead product is the CARILLON Mitral Contour System, a minimally invasive, catheter-delivered implant placed in the coronary sinus to reshape the mitral valve annulus and reduce functional mitral regurgitation without open-heart surgery. CARILLON carries a CE Mark in Europe and remains an investigational device in the United States, where the company is completing the EMPOWER pivotal trial. Cardiac Dimensions closed an oversubscribed $53M Series E in March 2025 led by Ally Bridge Group. The company manufactures an implantable Class III medical device and operates no public developer program, API, or software platform.

Cardiac Dimensions is profiled on the APIs.io network. Tagged areas include Company, Medical Devices, Cardiology, Heart Failure, and Structural Heart.

🌐 Visit website 📡 Profile data on GitHub

3.4/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Medical Devices Cardiology Heart Failure Structural HeartTranscatheterHealthcare Medical Technology

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 3.4/100 · 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 3.8 / 9

Regulatory Posture 0.7 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health 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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/cardiac-dimensions/apis.yml: open an issue on github.com/api-evangelist/cardiac-dimensions to ask a question or point us at an artifact you publish. 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.

Cardiac Dimensions Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: cardiac-dimensions
name: Cardiac Dimensions
description: Cardiac Dimensions is a privately held structural-heart medical device company headquartered in Kirkland, Washington,
  developing transcatheter therapies for patients with heart failure and functional mitral regurgitation. Its lead product
  is the CARILLON Mitral Contour System, a minimally invasive, catheter-delivered implant placed in the coronary sinus to
  reshape the mitral valve annulus and reduce functional mitral regurgitation without open-heart surgery. CARILLON carries
  a CE Mark in Europe and remains an investigational device in the United States, where the company is completing the EMPOWER
  pivotal trial. Cardiac Dimensions closed an oversubscribed $53M Series E in March 2025 led by Ally Bridge Group. The company
  manufactures an implantable Class III medical device and operates no public developer program, API, or software platform.
url: https://raw.githubusercontent.com/api-evangelist/cardiac-dimensions/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-secondary-market: https://forgeglobal.com/cardiac-dimensions_stock/
x-tier: stub
x-tier-reason: harvest
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
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Medical Devices
- Cardiology
- Heart Failure
- Structural Heart
- Transcatheter
- Healthcare
- Medical Technology
tags_raw:
- Company
- Medical Devices
- Cardiology
- Heart Failure
- Structural Heart
- Transcatheter
- Health Care
- Medical Technology
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/cardiac-dimensions-domain-security.yml
- type: Website
  url: https://cardiacdimensions.com/
x-enrichment:
  date: '2026-08-09'
  status: minimal
  artifacts_added: 1
  pass: local-v1
x-coverage:
  state: none
  reason: not-a-software-company
  detail: Cardiac Dimensions manufactures the CARILLON Mitral Contour System, an implantable Class III cardiac device, and
    certificate-transparency enumeration of every certificate ever issued for cardiacdimensions.com returns only mail, autodiscover,
    sslvpn, staging1/2 and www hosts — no api, developer, docs or portal hostname has ever existed — while the WordPress marketing
    site itself answers every path, including the homepage, with a SiteGround sgcaptcha interstitial.
  evidence:
  - url: https://crt.sh/json?q=cardiacdimensions.com
    status: 200
  - url: https://cardiacdimensions.com/developers
    status: 202
  - url: https://cardiacdimensions.com/openapi.json
    status: 202
  - url: https://cardiacdimensions.com/.well-known/agent-card.json
    status: 202
  - url: https://github.com/cardiacdimensions
    status: 404
  checked: '2026-08-09'

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