# Retro Biosciences

**Canonical:** https://apis.io/providers/retro-biosciences/  
**Website:** https://www.retro.bio/  
**APIs profiled:** 0

Retro Biosciences is a Redwood City, California longevity biotechnology company founded in 2021 whose stated mission is to add ten years to healthy human lifespan. Its published preclinical pipeline spans RTR242, a small-molecule autophagy-flux booster aimed at Alzheimer's disease; RTR888, iPSC-derived microglial progenitors for CNS conditions; RTR890, iPSC-derived hematopoietic stem cells for blood disorders; AAV-delivered in vivo tissue reprogramming for osteoarthritis and age-related hearing loss; and AI-designed protein therapeutics, the last built on a 2025 collaboration with OpenAI on a protein-engineering model for reprogramming factors. Retro was seeded with $180M from Sam Altman and reported a $1.8B valuation in 2026. It is a therapeutics company rather than a software company: it operates a public GitHub organization of internal lab-automation and bioinformatics tooling, but publishes no API, SDK, developer portal or machine-readable contract of any kind.

## Kin Score — 7.0 / 100 (minimal)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 7.0).

| Facet | Score |
|---|---|
| Discoverability | 57.4 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 2.2 |
| Commercial 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 |
| 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 |

## Security (1)

- **Retro Biosciences Domain Security** — TLSv1.3 · HSTS

## Tags

Company, Biotechnology, Life Sciences, Longevity, Aging, Therapeutics, Cell Therapy, Gene Therapy, Drug Discovery, Regenerative Medicine, Neuroscience, United States

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