Loyal

Loyal (Cellular Longevity, Inc.) is a clinical-stage veterinary biotechnology company developing drugs intended to extend the healthy lifespan of dogs. Its lead programs — including LOY-002 for metabolic dysfunction in senior dogs and LOY-001/LOY-003 for large- and giant-breed dogs — are advancing through the FDA Center for Veterinary Medicine approval process, with more than 1,300 dogs enrolled across clinical studies. Loyal also runs a veterinary Learning Hub for practitioner education. The company is backed by Bain Capital Ventures and First Round Capital. As of this enrichment pass Loyal publishes no public developer API, OpenAPI/AsyncAPI specification, SDK, MCP server, or /.well-known discovery surface; this profile captures its public web identity and a live domain-security probe.

Loyal is profiled on the APIs.io network. Tagged areas include Company, Healthcare, Biotechnology, Veterinary, and Animal Health.

Loyal’s developer surface includes engineering blog, support, and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub

11.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyHealthcareBiotechnologyVeterinaryAnimal HealthPharmaceuticalsLongevityLife Sciences

Kin Score

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

Composite quality — 11.9/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 2.1 / 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/loyal: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: loyal
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/loyal.png
name: Loyal
description: Loyal (Cellular Longevity, Inc.) is a clinical-stage veterinary biotechnology company developing drugs intended
  to extend the healthy lifespan of dogs. Its lead programs — including LOY-002 for metabolic dysfunction in senior dogs and
  LOY-001/LOY-003 for large- and giant-breed dogs — are advancing through the FDA Center for Veterinary Medicine approval
  process, with more than 1,300 dogs enrolled across clinical studies. Loyal also runs a veterinary Learning Hub for practitioner
  education. The company is backed by Bain Capital Ventures and First Round Capital. As of this enrichment pass Loyal publishes
  no public developer API, OpenAPI/AsyncAPI specification, SDK, MCP server, or /.well-known discovery surface; this profile
  captures its public web identity and a live domain-security probe.
url: https://raw.githubusercontent.com/api-evangelist/loyal/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- bain-capital-ventures
- first-round-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Healthcare
- Biotechnology
- Veterinary
- Animal Health
- Pharmaceuticals
- Longevity
- Life Sciences
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://loyal.com/
- type: DomainSecurity
  url: security/loyal-domain-security.yml
- type: Blog
  url: https://loyal.com/blog
- type: PrivacyPolicy
  url: https://loyal.com/privacy-policy
- type: Support
  url: https://loyal.com/contact
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 1
  pass: local-v1