35Pharma

35Pharma is a Canada-based, private, clinical-stage biopharmaceutical company headquartered in Montreal, Quebec, with a research hub in Boston, Massachusetts. It designs and develops next-generation protein-based therapeutics — multi-specific Activin x GDF ligand traps engineered against the TGF-beta superfamily — for pulmonary hypertension, heart failure, cardiometabolic disease and obesity. Its lead program, HS235, is a precision-engineered activin signalling inhibitor that has completed Phase I healthy-volunteer studies and is entering proof-of-principle trials in PAH and PH-HFpEF; a second program, HS370, targets heart failure and obesity. 35Pharma publishes no developer program, API, or machine-readable API artifacts of any kind — it is a therapeutics developer, not a software or data provider. On 25 February 2026 the company announced an agreement to be acquired by GSK plc.

35Pharma is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Pharmaceuticals, Biopharmaceutical, and Drug Development.

🌐 Visit website 📡 Profile data on GitHub

6.4/100 minimal ▬ flat Agent 0/100 human only Front door AI 1/6 silent Heartbeat 17/100 dormant Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

0 APIs

Company Biotechnology Pharmaceuticals Biopharmaceutical Drug Development Clinical Trials Life Sciences Protein Engineering Healthcare

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 6.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.2 / 9

Regulatory Posture 1.2 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes

13 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 10.5 — up to +17.9 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/35pharma/apis.yml: open an issue on github.com/api-evangelist/35pharma to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

35Pharma Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

PressReleases

PressReleases

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Careers

Careers

Other 1

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Source (apis.yml)

aid: 35pharma
name: 35Pharma
description: 35Pharma is a Canada-based, private, clinical-stage biopharmaceutical company headquartered in Montreal, Quebec,
  with a research hub in Boston, Massachusetts. It designs and develops next-generation protein-based therapeutics — multi-specific
  Activin x GDF ligand traps engineered against the TGF-beta superfamily — for pulmonary hypertension, heart failure, cardiometabolic
  disease and obesity. Its lead program, HS235, is a precision-engineered activin signalling inhibitor that has completed
  Phase I healthy-volunteer studies and is entering proof-of-principle trials in PAH and PH-HFpEF; a second program, HS370,
  targets heart failure and obesity. 35Pharma publishes no developer program, API, or machine-readable API artifacts of any
  kind — it is a therapeutics developer, not a software or data provider. On 25 February 2026 the company announced an agreement
  to be acquired by GSK plc.
url: https://raw.githubusercontent.com/api-evangelist/35pharma/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: none
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/679106f289641fbcc75092be/6920bf64870d13ff322aff0b_Open%20graph%20logo.jpg
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
x-parent-company: gsk
specificationVersion: '0.20'
created: '2026-09-05'
modified: '2026-09-05'
tags:
- Company
- Biotechnology
- Pharmaceuticals
- Biopharmaceutical
- Drug Development
- Clinical Trials
- Life Sciences
- Protein Engineering
- Healthcare
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.35pharma.com/
- type: PressReleases
  url: https://www.35pharma.com/news
- type: Careers
  url: https://www.35pharma.com/careers
- type: PrivacyPolicy
  url: https://cdn.prod.website-files.com/679106f289641fbcc75092be/690117401d052d425a9a6c62_35Pharma_PrivacyPolicy_EN_FR.pdf
- type: ParentCompany
  url: https://www.gsk.com
- type: DomainSecurity
  url: security/35pharma-domain-security.yml
x-enrichment:
  date: '2026-09-05'
  status: minimal
  artifacts_added: 2
  pass: local-v3
x-coverage:
  state: none
  reason: not-a-software-company
  detail: 35Pharma is a clinical-stage biopharmaceutical company developing Activin x GDF ligand-trap biologics (lead asset
    HS235); its entire public site is seven marketing pages — technology, pipeline, about, careers, news, publications — with
    no developer section, no API, and no machine-readable artifact on any probed path.
  evidence:
  - url: https://www.35pharma.com/sitemap.xml
    status: 200
  - url: https://www.35pharma.com/openapi.json
    status: 404
  - url: https://www.35pharma.com/llms.txt
    status: 404
  - url: https://www.35pharma.com/.well-known/agent-card.json
    status: 404
  - url: https://www.35pharma.com/apis.json
    status: 404
  checked: '2026-09-05'

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get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
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apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
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