Until

Until (Until Labs) is a biotechnology company building the medical infrastructure to pause biological time. It is developing reversible cryopreservation systems for human organs, starting with organ-scale reversible cryopreservation to solve the donor-organ procurement and matching problem, and methodically scaling toward whole-body preservation. The lab translates the fundamentals of cryobiology into engineered workflows across five dimensions — perfusion, cryoprotectants, cooling, rewarming, and organ health assessment — using vitrification (glass, not ice) to prevent ice formation during preservation and safe rewarming. Founded by Laura Deming and Hunter Davis, Until has raised $100M+ to date and is backed by Founders Fund. Until is a research-and-development company with no public API surface; this profile captures its identity and public web properties for the API Evangelist network.

Until is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Health, Cryopreservation, and Cryobiology.

Until’s developer surface includes engineering blog, support, FAQ, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
8.0/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyBiotechnologyHealthCryopreservationCryobiologyOrgan PreservationMedical InfrastructureResearch

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 8.0/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 1.4 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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
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/until: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Operate 3

Status, limits, changes, and where to get help

Support
Support
 Roadmap
Roadmap
 FAQ
FAQ

Company 5

The organization behind the API

Website
Website
 Blog
Blog
 LinkedIn
LinkedIn
 Twitter
Twitter
 Careers
Careers

Source (apis.yml)

apis.yml Raw ↑ 
aid: until
name: Until
description: Until (Until Labs) is a biotechnology company building the medical infrastructure to pause biological time. It
  is developing reversible cryopreservation systems for human organs, starting with organ-scale reversible cryopreservation
  to solve the donor-organ procurement and matching problem, and methodically scaling toward whole-body preservation. The
  lab translates the fundamentals of cryobiology into engineered workflows across five dimensions — perfusion, cryoprotectants,
  cooling, rewarming, and organ health assessment — using vitrification (glass, not ice) to prevent ice formation during preservation
  and safe rewarming. Founded by Laura Deming and Hunter Davis, Until has raised $100M+ to date and is backed by Founders
  Fund. Until is a research-and-development company with no public API surface; this profile captures its identity and public
  web properties for the API Evangelist network.
url: https://raw.githubusercontent.com/api-evangelist/until/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://raw.githubusercontent.com/api-evangelist/until/refs/heads/main/until-logo.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- founders-fund
x-tier: profiled
x-tier-reason: no-api-surface
x-website: https://www.untillabs.com/
x-founders:
- Laura Deming
- Hunter Davis
x-industry: Biotechnology / Health
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Biotechnology
- Health
- Cryopreservation
- Cryobiology
- Organ Preservation
- Medical Infrastructure
- Research
apis: []
common:
- type: Website
  url: https://www.untillabs.com/
- type: Blog
  url: https://www.untillabs.com/blog
- type: Support
  url: https://www.untillabs.com/contact
- type: GitHubOrganization
  url: https://github.com/until-labs
- type: Roadmap
  url: https://www.untillabs.com/roadmap
- type: LinkedIn
  url: https://www.linkedin.com/company/untillabs
- type: Twitter
  url: https://x.com/untillabs
- type: Careers
  url: https://www.untillabs.com/careers
- type: FAQ
  url: https://www.untillabs.com/faq
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: minimal
  artifacts_added: 0
  pass: local-v1