Lumius

Lumius is a Y Combinator (Spring 2026) medical-imaging startup building fast, smart, accessible real-time 3D ultrasound systems — described as "a 3D camera for the body." The technology aims to move ultrasound beyond traditional 2D imaging to intelligent, AI-assisted 3D visualization across larger volumes, with an initial focus on vascular access and central-line placement (where roughly half of first attempts fail among new clinicians) and future targets including blood-clot detection, tumor diagnosis, and biopsy guidance. The company partners with academic institutions such as Duke University and Columbia University. Lumius is a hardware/device company with no public API, SDK, or developer platform; its products are pre-market and not intended for medical use. This profile was added to the API Evangelist network as a VC portfolio lead and has been reviewed by the enrichment pipeline.

Lumius is profiled on the APIs.io network. Tagged areas include Company, Medical Imaging, Ultrasound, Healthcare, and Medical Devices.

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2.2/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

0 APIs

CompanyMedical ImagingUltrasoundHealthcareMedical DevicesArtificial IntelligenceHardwareY Combinator

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 2.2/100 · 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 4.3 / 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

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.

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/. This rating is computed from github.com/api-evangelist/lumius: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Company 3

The organization behind the API

Website

Website

LinkedIn

Crunchbase

Crunchbase

Source (apis.yml)

aid: lumius
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/lumius.png
name: Lumius
description: Lumius is a Y Combinator (Spring 2026) medical-imaging startup building fast, smart, accessible real-time 3D
  ultrasound systems — described as "a 3D camera for the body." The technology aims to move ultrasound beyond traditional
  2D imaging to intelligent, AI-assisted 3D visualization across larger volumes, with an initial focus on vascular access
  and central-line placement (where roughly half of first attempts fail among new clinicians) and future targets including
  blood-clot detection, tumor diagnosis, and biopsy guidance. The company partners with academic institutions such as Duke
  University and Columbia University. Lumius is a hardware/device company with no public API, SDK, or developer platform;
  its products are pre-market and not intended for medical use. This profile was added to the API Evangelist network as a
  VC portfolio lead and has been reviewed by the enrichment pipeline.
url: https://raw.githubusercontent.com/api-evangelist/lumius/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: '2026-07-20'
tags:
- Company
- Medical Imaging
- Ultrasound
- Healthcare
- Medical Devices
- Artificial Intelligence
- Hardware
- Y Combinator
apis: []
common:
- type: Website
  url: https://www.lumius-imaging.com
- type: LinkedIn
  url: https://www.linkedin.com/company/lumius-imaging/
- type: Crunchbase
  url: https://www.ycombinator.com/companies/lumius
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-20'
  status: nochange
  artifacts_added: 0
  pass: local-v1