Lucis

Lucis is a Paris-based, AI-powered preventative health platform (Y Combinator P25; backed by General Catalyst) that helps members understand their biology through comprehensive lab testing and personalised coaching. Members receive two annual lab assessments (blood, urine, and saliva) at 450+ partner labs across Europe, producing 110+ data points across 11 body systems — metabolic, cardiovascular, hormonal, nervous, and more — which an AI engine turns into personalised action plans spanning nutrition, supplementation, sleep, activity, and mental health. The platform ingests wearable data (Garmin, Withings, Oura, Strava; Apple Watch and Whoop coming soon) for ongoing monitoring. Lucis is a consumer health product; as of this profile it exposes a member web/mobile application and a compliance portal but publishes no public developer API surface.

Lucis is profiled on the APIs.io network. Tagged areas include Company, Health, Preventative Health, Longevity, and Biomarkers.

Lucis’ developer surface includes signup flow, engineering blog, support, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub

20.2/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyHealthPreventative HealthLongevityBiomarkersBlood TestingWearablesArtificial IntelligenceConsumer HealthDigital Health

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 20.2/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 8.4 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

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

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/lucis: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

Login

Access & Security 2

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: lucis
name: Lucis
description: Lucis is a Paris-based, AI-powered preventative health platform (Y Combinator P25; backed by General Catalyst)
  that helps members understand their biology through comprehensive lab testing and personalised coaching. Members receive
  two annual lab assessments (blood, urine, and saliva) at 450+ partner labs across Europe, producing 110+ data points across
  11 body systems — metabolic, cardiovascular, hormonal, nervous, and more — which an AI engine turns into personalised action
  plans spanning nutrition, supplementation, sleep, activity, and mental health. The platform ingests wearable data (Garmin,
  Withings, Oura, Strava; Apple Watch and Whoop coming soon) for ongoing monitoring. Lucis is a consumer health product; as
  of this profile it exposes a member web/mobile application and a compliance portal but publishes no public developer API
  surface.
url: https://raw.githubusercontent.com/api-evangelist/lucis/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: stub
x-tier-reason: portfolio-lead
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://www.lucis.life/assets/seo/lucis-opengraph-en.png
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Health
- Preventative Health
- Longevity
- Biomarkers
- Blood Testing
- Wearables
- Artificial Intelligence
- Consumer Health
- Digital Health
apis: []
common:
- type: Website
  url: https://www.lucis.life
- type: SignUp
  url: https://app.lucis.life/register
- type: Login
  url: https://app.lucis.life/signin
- type: Blog
  url: https://www.lucis.life/en/blog
- type: Support
  url: https://faq.lucis.life/
- type: PrivacyPolicy
  url: https://www.lucis.life/legal/en/privacy
- type: TermsOfService
  url: https://www.lucis.life/legal/en/terms
- type: TrustCenter
  url: https://compliance.lucis.life
- type: DomainSecurity
  url: security/lucis-domain-security.yml
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: 1
  pass: local-v1