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 9 APIs on the APIs.io network, including Posts API, Pages API, Media API, and 6 more. Tagged areas include Company, Biotechnology, Pharmaceuticals, Longevity, and Drug Discovery.

Juvenescence’s developer surface includes documentation, API reference, engineering blog, support, authentication, and 30 more developer resources.

🌐 Visit website 📡 Source on GitHub

42.9/100 developing Agent 35/100 agent ready Full breakdown ↓
scored 2026-08-24 · rubric v0.12.1

9 APIs

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

Kin Score

Kin Score How this is scored →
scored 2026-08-24 · rubric v0.12.1

Composite quality — 42.9/100 · developing

Contract Quality 11.2 / 21

Developer Ergonomics 8.5 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.6 / 11

Contract Governance 3.1 / 10

Discoverability 6.9 / 9

Regulatory Posture 5.8 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 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

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

APIs 9

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

Rate Limits 1

Documented rate limits and quota policies.

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

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.
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:juvenescence-posts-api
  name: Juvenescence Posts API
  description: Juvenescence's news stream — 57 published posts across Press Releases, In the News, Juv on the Road, Publications
    and Videos — read from the WordPress REST content API behind juvlabs.com.
  humanURL: https://juvlabs.com/news/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Posts
  - News
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-posts-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-pages-api
  name: Juvenescence Pages API
  description: The 35 published corporate, science, pipeline, leadership-biography and policy pages of juvlabs.com, read from
    the WordPress REST content API.
  humanURL: https://juvlabs.com/our-approach/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Pages
  - Content
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-pages-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-media-api
  name: Juvenescence Media API
  description: The 466-item juvlabs.com media library — brand marks, leadership portraits, press and conference imagery —
    with per-item MIME type, source URL and generated size variants.
  humanURL: https://developer.wordpress.org/rest-api/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Media
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-media-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-categories-api
  name: Juvenescence Categories API
  description: The 7 post categories that organise the Juvenescence news stream, five of which carry posts.
  humanURL: https://juvlabs.com/news/category/press-releases/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Categories
  - Taxonomy
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-categories-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-tags-api
  name: Juvenescence Tags API
  description: The 25 post tags on juvlabs.com, a vocabulary dominated by Juvenescence portfolio companies and research collaborators
    alongside a legacy consumer-nutrition set.
  humanURL: https://juvlabs.com/news/tag/juvenescence/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Tags
  - Taxonomy
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-tags-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-comments-api
  name: Juvenescence Comments API
  description: The comments collection on juvlabs.com. Registered and anonymously readable, but empty — the site does not
    use comments.
  humanURL: https://developer.wordpress.org/rest-api/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Comments
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-comments-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-search-api
  name: Juvenescence Search API
  description: Cross-content search over Juvenescence posts, pages, the portfolio type and taxonomy terms — the single best
    entry point for an agent that needs to find material without walking every collection.
  humanURL: https://developer.wordpress.org/rest-api/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-search-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-portfolio-api
  name: Juvenescence Portfolio API
  description: The site's registered `portfolio` custom post type and its `portfolio_category` taxonomy. Registered, public
    and REST-exposed, but empty at derivation — Juvenescence's portfolio companies are currently carried in page copy and
    post tags rather than in this type.
  humanURL: https://developer.wordpress.org/rest-api/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Portfolio
  - Taxonomy
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-portfolio-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
- aid: juvenescence:juvenescence-discovery-api
  name: Juvenescence Discovery API
  description: The juvlabs.com REST discovery surface — site index, `wp/v2` namespace route index with per-argument schemas,
    registered content types, taxonomies and statuses, plus oEmbed URL resolution.
  humanURL: https://juvlabs.com/wp-json/
  baseURL: https://juvlabs.com/wp-json
  tags:
  - Discovery
  - Metadata
  properties:
  - type: OpenAPI
    url: openapi/juvenescence-discovery-api-openapi.yml
  - type: Authentication
    url: authentication/juvenescence-authentication.yml
  - type: ErrorCatalog
    url: errors/juvenescence-problem-types.yml
  - type: Conventions
    url: conventions/juvenescence-conventions.yml
  - type: DataModel
    url: data-model/juvenescence-data-model.yml
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: OpenAPI
  url: openapi/_original/juvenescence-content-openapi.yml
- 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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Juvenescence

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APIs 9

Juvenescence Posts API

Juvenescence Pages API

Juvenescence Media API

Juvenescence Categories API

Juvenescence Tags API

Juvenescence Comments API

Juvenescence Search API

Juvenescence Portfolio API

Juvenescence Discovery API

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Juvenescence Plans Pricing