Juvenescence

Juvenescence Limited is a clinical-stage, AI-enabled drug development company headquartered in Ramsey, Isle of Man, with operations in the United Kingdom, the United States and Abu Dhabi, founded by Jim Mellon, Dr Gregory Bailey and Dr Declan Doogan and led by CEO Dr Richard Marshall CBE. It develops medicines that target core mechanisms of aging in order to prevent rather than only treat age-related disease, working across small molecules, biologics and cell therapies. Its lead programme is the PAI-1 inhibitor MDI-2517, which completed a Phase 1 trial with a Phase 2 proof-of-concept study planned in metabolic and fibrotic disease, alongside a CD38 inhibitor programme run with the Buck Institute for Research on Aging. The company closed a $76m first tranche of Series B-1 financing led by Abu Dhabi's M42 in 2025 and acquired the AI drug-discovery company Ro5 Inc. in June 2025, bringing in the HydraScreen structure-based screening and ADMET modelling stack. Juvenescence has founded or capitalised a portfolio of longevity biotechs including LyGenesis, Napa Therapeutics, Souvien Therapeutics, Morphoceuticals, Relation Therapeutics, Chrysea Labs, Selah Therapeutics and BYOMass. Juvenescence runs no developer program and publishes no product API. The machine-readable surfaces it does expose are the anonymously readable WordPress REST content API behind juvlabs.com, a provider-published llms.txt, and the open-source HydraScreen and bio2d research code released under the Ro5-ai GitHub organisation.

Juvenescence publishes 1 API on the APIs.io network. Tagged areas include Company, Biotechnology, Pharmaceuticals, Longevity, and Drug Discovery.

Juvenescence’s developer surface includes documentation, API reference, engineering blog, support, authentication, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub

23.5/100 emerging ▼ -6.6 Agent 9/100 agent aware Front door AI 3/6 light saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

AccessOpen

1 API

Company Biotechnology Pharmaceuticals Longevity Drug Discovery Life Sciences Clinical Trials Artificial Intelligence Aging content-api

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 23.5/100 · emerging

Contract Quality 0.4 / 21

Developer Ergonomics 7.6 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 4.3 / 15

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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/juvenescence: 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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Juvenescence Website (WordPress REST)

The public WordPress REST API (wp-json) of the Juvenescence website at juvlabs.com: the route index of the site's content management system, catalogued as one site surface rathe...

Pricing Plans 1

Published pricing tiers and plan structures.

Juvenescence Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Juvenescence Rate Limits

0 limits

RATE LIMITS

Security Posture 2

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

Juvenescence Authentication

0 schemes

SECURITY

Juvenescence Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Lifecycle

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

PressReleases

Contact

Support

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 5

The organization behind the API

Website

Blog

BlogRSS

About

LinkedIn

Other 8

Properties that don't map to a standard resource type

Publications

Science

Pipeline

Management

CookiePolicy

RefundPolicy

SecondaryMarket

Overlay

Scroll for all 8

Source (apis.yml)

aid: juvenescence
name: Juvenescence
description: Juvenescence Limited is a clinical-stage, AI-enabled drug development company headquartered in Ramsey, Isle of
  Man, with operations in the United Kingdom, the United States and Abu Dhabi, founded by Jim Mellon, Dr Gregory Bailey and
  Dr Declan Doogan and led by CEO Dr Richard Marshall CBE. It develops medicines that target core mechanisms of aging in order
  to prevent rather than only treat age-related disease, working across small molecules, biologics and cell therapies. Its
  lead programme is the PAI-1 inhibitor MDI-2517, which completed a Phase 1 trial with a Phase 2 proof-of-concept study planned
  in metabolic and fibrotic disease, alongside a CD38 inhibitor programme run with the Buck Institute for Research on Aging.
  The company closed a $76m first tranche of Series B-1 financing led by Abu Dhabi's M42 in 2025 and acquired the AI drug-discovery
  company Ro5 Inc. in June 2025, bringing in the HydraScreen structure-based screening and ADMET modelling stack. Juvenescence
  has founded or capitalised a portfolio of longevity biotechs including LyGenesis, Napa Therapeutics, Souvien Therapeutics,
  Morphoceuticals, Relation Therapeutics, Chrysea Labs, Selah Therapeutics and BYOMass. Juvenescence runs no developer program
  and publishes no product API. The machine-readable surfaces it does expose are the anonymously readable WordPress REST content
  API behind juvlabs.com, a provider-published llms.txt, and the open-source HydraScreen and bio2d research code released
  under the Ro5-ai GitHub organisation.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://juvlabs.com/wp-content/uploads/2024/07/juvenescence-logo-green.png
url: https://raw.githubusercontent.com/api-evangelist/juvenescence/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enriched
specificationVersion: '0.23'
created: '2026-08-23'
modified: '2026-08-23'
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Longevity
- Drug Discovery
- Life Sciences
- Clinical Trials
- Artificial Intelligence
- Aging
- content-api
tags_raw:
- Company
- biotechnology
- pharmaceuticals
- longevity
- drug-discovery
- life-sciences
- clinical-trials
- artificial-intelligence
- aging
- content-api
apis:
- aid: juvenescence:juvlabs-com-website-wordpress-rest
  name: Juvenescence Website (WordPress REST)
  description: 'The public WordPress REST API (wp-json) of the Juvenescence website at juvlabs.com: the route index of the
    site''s content management system, catalogued as one site surface rather than as separate APIs.'
  baseURL: https://juvlabs.com/wp-json
  tags:
  - WordPress
  x-surface: platform-generated
  properties:
  - type: Documentation
    url: https://juvlabs.com/wp-json
  x-platform: wordpress
  x-platform-surface: rest
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://juvlabs.com/
- type: Documentation
  url: https://developer.wordpress.org/rest-api/
- type: APIReference
  url: https://juvlabs.com/wp-json/wp/v2
- type: Blog
  url: https://juvlabs.com/news/
- type: BlogRSS
  url: https://juvlabs.com/sitemap.rss
- type: PressReleases
  url: https://juvlabs.com/news/category/press-releases/
- type: Publications
  url: https://juvlabs.com/news/category/publications/
- type: Science
  url: https://juvlabs.com/science/
- type: Pipeline
  url: https://juvlabs.com/our-pipeline/
- type: Management
  url: https://juvlabs.com/our-team/
- type: About
  url: https://juvlabs.com/our-approach/
- type: Contact
  url: https://juvlabs.com/contact-us/
- type: Support
  url: https://juvlabs.com/contact-us/
- type: TermsOfService
  url: https://juvlabs.com/terms-of-service/
- type: PrivacyPolicy
  url: https://juvlabs.com/privacy-notice/
- type: CookiePolicy
  url: https://juvlabs.com/cookie-notice/
- type: RefundPolicy
  url: https://juvlabs.com/refund-policy/
- type: LinkedIn
  url: https://www.linkedin.com/company/juvenescence1
- type: GitHubOrganization
  url: https://github.com/Ro5-ai
- type: SecondaryMarket
  url: https://forgeglobal.com/juvenescence_stock/
- type: Overlay
  url: overlays/juvenescence-content-overlay.yaml
- type: Authentication
  url: authentication/juvenescence-authentication.yml
- type: Conventions
  url: conventions/juvenescence-conventions.yml
- type: Conformance
  url: conformance/juvenescence-conformance.yml
- type: ErrorCatalog
  url: errors/juvenescence-problem-types.yml
- type: Lifecycle
  url: lifecycle/juvenescence-lifecycle.yml
- type: DataModel
  url: data-model/juvenescence-data-model.yml
- type: DomainSecurity
  url: security/juvenescence-domain-security.yml
- type: Packages
  url: packages/juvenescence-packages.yml
- type: SDKs
  url: packages/juvenescence-packages.yml
- type: Plans
  url: plans/juvenescence-plans-pricing.yml
- type: RateLimits
  url: rate-limits/juvenescence-rate-limits.yml
- type: LLMsTxt
  url: llms/juvenescence-llms.txt
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-08-23'
  status: enriched
  artifacts_added: 28
  pass: local-v1

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