Kronos Bio *

Kronos Bio was a clinical-stage biopharmaceutical company in the life-sciences sector, backed by GV, working on cancer therapeutics. It surfaced in the API Evangelist network as a GV portfolio lead. The company operates no public API, developer portal, SDK, or technical documentation surface. A live probe on 2026-07-19 found that kronosbio.com no longer hosts a corporate website: the apex and www hosts both return a GoDaddy domain-parking lander that answers HTTP 200 for every path, and the ir, docs, api, and developer subdomains do not resolve at all. No GitHub organization or public repositories were found. This profile is retained as a network record of a company with no API surface rather than as an active API provider.

Kronos Bio * is profiled on the APIs.io network. Tagged areas include Company, Life Sciences, Biotechnology, Oncology, and Pharmaceuticals.

🌐 Visit website 📡 Source on GitHub

4.4/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

0 APIs

Company Life Sciences Biotechnology Oncology Pharmaceuticals Drug Discovery

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 4.4/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 0.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.2 / 9

Regulatory Posture 1.1 / 15

Agent readiness — 3/100 · 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 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

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.

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/.

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/kronos-bio: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: kronos-bio
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kronos-bio.png
name: Kronos Bio *
description: 'Kronos Bio was a clinical-stage biopharmaceutical company in the life-sciences sector, backed by GV, working
  on cancer therapeutics. It surfaced in the API Evangelist network as a GV portfolio lead. The company operates no public
  API, developer portal, SDK, or technical documentation surface. A live probe on 2026-07-19 found that kronosbio.com no longer
  hosts a corporate website: the apex and www hosts both return a GoDaddy domain-parking lander that answers HTTP 200 for
  every path, and the ir, docs, api, and developer subdomains do not resolve at all. No GitHub organization or public repositories
  were found. This profile is retained as a network record of a company with no API surface rather than as an active API provider.'
url: https://raw.githubusercontent.com/api-evangelist/kronos-bio/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment-status: no-api-surface
x-website-status: parked
x-last-probed: '2026-07-19'
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Life Sciences
- Biotechnology
- Oncology
- Pharmaceuticals
- Drug Discovery
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/kronos-bio-domain-security.yml
- type: Website
  url: https://kronosbio.com
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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