# Janssen Pharmaceuticals

**Canonical:** https://apis.io/providers/janssen/  
**Website:** https://www.jnj.com/innovative-medicine  
**APIs profiled:** 0

Janssen Pharmaceuticals was a Belgian pharmaceutical company founded in 1953 by Paul Janssen and acquired by Johnson & Johnson in 1961. The company specialized in psychiatry, neurology, oncology, immunology, and infectious disease medicines, developing approximately 70 new active pharmaceutical substances over its history. In 2024 the Janssen brand was retired and the pharmaceutical operations were rebranded as Johnson & Johnson Innovative Medicine. As such, Janssen no longer operates as a standalone brand and does not maintain its own public APIs.

## Kin Score — 2.4 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 2.4).

| Facet | Score |
|---|---|
| Discoverability | 40.7 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Health**: 7.5 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Janssen Domain Security** — TLSv1.3 · DMARC

## Tags

Defunct Brand, Healthcare, Johnson & Johnson, Pharmaceuticals

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/janssen/). Scores are computed from the provider's own public artifacts under a published rubric.