Isono Health

iSono Health is a Sunnyvale, California medical device company behind ATUSA, described as the first AI-driven portable and automated 3D breast ultrasound scanner. ATUSA performs fully automated whole-breast imaging in about two minutes per breast without a trained sonographer, pairing a 3D ultrasound scanner and wearable accessory with a Windows desktop/tablet application and HIPAA-compliant cloud storage for real-time 2D and 3D visualization, lesion localization, and remote monitoring. The system is FDA 510(k) cleared and targets more accessible point-of-care breast cancer screening and monitoring. iSono Health is a Y Combinator-backed company. No public developer API, SDK, or documentation surface is currently published.

Isono Health is profiled on the APIs.io network. Tagged areas include Company, Medical Devices, Medical Imaging, Breast Imaging, and Ultrasound.

Isono Health’s developer surface includes support and 2 more developer resources.

🌐 Visit website 📡 Source on GitHub

4.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

0 APIs

Company Medical Devices Medical ImagingBreast ImagingUltrasound Women's Health Diagnostics Health FDA Cleared Y Combinator

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 4.3/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.8 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.3 / 9

Regulatory Posture 1.1 / 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 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/.

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/isono-health: 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.

Isono Health Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: isono-health
name: Isono Health
description: iSono Health is a Sunnyvale, California medical device company behind ATUSA, described as the first AI-driven
  portable and automated 3D breast ultrasound scanner. ATUSA performs fully automated whole-breast imaging in about two minutes
  per breast without a trained sonographer, pairing a 3D ultrasound scanner and wearable accessory with a Windows desktop/tablet
  application and HIPAA-compliant cloud storage for real-time 2D and 3D visualization, lesion localization, and remote monitoring.
  The system is FDA 510(k) cleared and targets more accessible point-of-care breast cancer screening and monitoring. iSono
  Health is a Y Combinator-backed company. No public developer API, SDK, or documentation surface is currently published.
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://isonohealth.com/wp-content/uploads/2025/11/Atusa_rgb_blue.png
url: https://raw.githubusercontent.com/api-evangelist/isono-health/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Medical Devices
- Medical Imaging
- Breast Imaging
- Ultrasound
- Women's Health
- Diagnostics
- Health
- FDA Cleared
- Y Combinator
apis: []
common:
- type: Website
  url: https://isonohealth.com
- type: Support
  url: https://isonohealth.com/contact-us/
- type: DomainSecurity
  url: security/isono-health-domain-security.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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