# Cardiogram

**Canonical:** https://apis.io/providers/cardiogram/  
**Website:** https://cardiogram.com  
**APIs profiled:** 0

Cardiogram is a digital-health company whose consumer app analyzes heart-rate and activity data from wearables such as the Apple Watch, Wear OS, Garmin, and Fitbit to help people understand their cardiovascular health. Its DeepHeart deep-neural-network technology was developed to screen heart-rate patterns for signs of conditions including atrial fibrillation, sleep apnea, diabetes, and hypertension, work studied in collaboration with academic health researchers. The company is backed by Andreessen Horowitz (a16z). This profile was added to the API Evangelist network as a venture-portfolio lead; as of this pass Cardiogram exposes no public developer or API surface and its primary website (cardiogram.com) does not complete an HTTPS/TLS handshake.

## Kin Score — 3.3 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 3.3).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Health**: 7.5 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Cardiogram Domain Security** — DMARC

## Tags

Company, Health, Healthcare, Digital Health, Wearables, Heart Rate, Cardiovascular, Machine-Learning, Consumer Health

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/cardiogram/). Scores are computed from the provider's own public artifacts under a published rubric.