Stylus Medicine

Stylus Medicine is a Cambridge, Massachusetts biotechnology company developing in vivo genetic medicines built on engineered recombinases. Its platform aims to generate precise, durable CAR-T cells directly inside the body using cell-targeted lipid nanoparticle delivery to immune cells, with therapeutic programs spanning oncology, autoimmune disease, and genetic disorders. The company is a portfolio company of Khosla Ventures. It operates as a research-stage therapeutics company and does not currently publish a public developer API, SDK, or documentation surface.

Stylus Medicine is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Genetic Medicine, Cart, and Cell Therapy.

🌐 Visit website 📡 Source on GitHub
3.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
0 APIs
CompanyBiotechnologyGenetic MedicineCartCell TherapyOncologyLife Sciences

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 3.3/100 · 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 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
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/stylusmedicine: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Stylusmedicine Domain Security

TLSv1.3 · HSTS · 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)

apis.yml Raw ↑ 
aid: stylusmedicine
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/stylusmedicine.png
name: Stylus Medicine
description: Stylus Medicine is a Cambridge, Massachusetts biotechnology company developing in vivo genetic medicines built
  on engineered recombinases. Its platform aims to generate precise, durable CAR-T cells directly inside the body using cell-targeted
  lipid nanoparticle delivery to immune cells, with therapeutic programs spanning oncology, autoimmune disease, and genetic
  disorders. The company is a portfolio company of Khosla Ventures. It operates as a research-stage therapeutics company and
  does not currently publish a public developer API, SDK, or documentation surface.
url: https://raw.githubusercontent.com/api-evangelist/stylusmedicine/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- khosla-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Biotechnology
- Genetic Medicine
- Cart
- Cell Therapy
- Oncology
- Life Sciences
tags_raw:
- Company
- Biotechnology
- Genetic Medicine
- CAR-T
- Cell Therapy
- Oncology
- Life Sciences
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/stylusmedicine-domain-security.yml
- type: Website
  url: https://www.stylusmedicine.com/
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 1
  pass: local-v1