# Until Labs

**Canonical:** https://apis.io/providers/until-labs/  
**Website:** https://www.untillabs.com/  
**APIs profiled:** 0

Until Labs (branded "until") is a San Francisco deep-tech biotechnology company developing reversible cryopreservation technology for human donor organs. Its mission is to build a "pause button for biology" by safely vitrifying organs at ultra-low temperatures without ice formation, then rewarming them for transplant — extending the viability window for donor organs and improving transplant outcomes. The company builds perfusion hardware, cryoprotective agents, cooling and rewarming infrastructure, and organ-health assessment methods, working toward whole-body medical hibernation. Co-founded by Laura Deming and Hunter Davis, Until has raised over $100M including a $58M Series A (September 2025) led by Founders Fund with Lux Capital participating. As a wet-lab hardware and life-sciences company, Until publishes no public developer API, SDK, or software platform. This profile was surfaced as a Lux Capital portfolio company and enriched from public sources.

## Kin Score — 4.5 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 4.5).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 2.4 |
| 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)

- **Until Labs Domain Security** — TLSv1.3 · HSTS

## Tags

Company, Deep Tech, Biotechnology, Cryopreservation, Organ Transplant, Life Sciences, Medical Hardware

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