Grail

GRAIL, Inc. is a healthcare company headquartered in Menlo Park, California, focused on detecting cancer early, when it can be cured. Its flagship product, the Galleri multi-cancer early detection (MCED) test, uses a single blood draw and methylation-based genomic sequencing to screen for a signal shared across more than 50 types of cancer, many of which lack any recommended screening today. GRAIL runs large clinical programs including the PATHFINDER, PATHFINDER 2, and NHS-Galleri studies, and distributes Galleri through health plans, employers, and partners such as Quest Diagnostics and Junction. GRAIL is a portfolio company of investors including GV and SV Angel. It does not publish a first-party public developer API; programmatic access to Galleri ordering is offered through third-party diagnostic infrastructure partners.

Grail is profiled on the APIs.io network. Tagged areas include Company, Life Sciences, Healthcare, Cancer Detection, and Diagnostics.

Grail’s developer surface includes engineering blog, support, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

15.6/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyLife SciencesHealthcareCancer DetectionDiagnosticsGenomicsMulti-Cancer Early DetectionBioinformatics

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 15.6/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.7 / 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/grail: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: grail
name: Grail
description: GRAIL, Inc. is a healthcare company headquartered in Menlo Park, California, focused on detecting cancer early,
  when it can be cured. Its flagship product, the Galleri multi-cancer early detection (MCED) test, uses a single blood draw
  and methylation-based genomic sequencing to screen for a signal shared across more than 50 types of cancer, many of which
  lack any recommended screening today. GRAIL runs large clinical programs including the PATHFINDER, PATHFINDER 2, and NHS-Galleri
  studies, and distributes Galleri through health plans, employers, and partners such as Quest Diagnostics and Junction. GRAIL
  is a portfolio company of investors including GV and SV Angel. It does not publish a first-party public developer API; programmatic
  access to Galleri ordering is offered through third-party diagnostic infrastructure partners.
url: https://raw.githubusercontent.com/api-evangelist/grail/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
- sv-angel
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
image: https://grail.com/wp-content/uploads/2021/03/GRAIL-logo.png
tags:
- Company
- Life Sciences
- Healthcare
- Cancer Detection
- Diagnostics
- Genomics
- Multi-Cancer Early Detection
- Bioinformatics
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://grail.com/
- type: GitHubOrganization
  url: https://github.com/grailbio
- type: Blog
  url: https://grail.com/news-center/
- type: Support
  url: https://grail.com/get-in-touch/
- type: TermsOfService
  url: https://grail.com/terms/
- type: PrivacyPolicy
  url: https://grail.com/privacy-notices/
- type: DomainSecurity
  url: security/grail-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence