Arcus Biosciences

Arcus Biosciences is a clinical-stage biopharmaceutical company focused on developing differentiated cancer immunotherapies, headquartered in Hayward, California. Its pipeline pairs multiple novel molecules across intra-tumoral immune pathways, including the HIF-2a inhibitor casdatifan, the CD73 inhibitor quemliclustat, the anti-TIGIT antibody domvanalimab, the anti-PD-1 antibody zimberelimab, and the CD39 inhibitor AB598. Surfaced as a portfolio company of GV and added to the API Evangelist network as a life-sciences company profile. Arcus publishes an agent-facing surface (llms.txt, an AI content map, and an Organization schema) but no public developer API.

Arcus Biosciences is profiled on the APIs.io network. Tagged areas include Company, Life Sciences, Biotechnology, Pharmaceuticals, and Oncology.

🌐 Visit website 📡 Source on GitHub

10.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyLife SciencesBiotechnologyPharmaceuticalsOncologyImmunotherapyCancerClinical Trials

Kin Score

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

Composite quality — 10.8/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 2.1 / 20

Operational Transparency 0.0 / 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/arcus-biosciences: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: arcus-biosciences
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/arcus-biosciences.png
name: Arcus Biosciences
description: Arcus Biosciences is a clinical-stage biopharmaceutical company focused on developing differentiated cancer immunotherapies,
  headquartered in Hayward, California. Its pipeline pairs multiple novel molecules across intra-tumoral immune pathways,
  including the HIF-2a inhibitor casdatifan, the CD73 inhibitor quemliclustat, the anti-TIGIT antibody domvanalimab, the anti-PD-1
  antibody zimberelimab, and the CD39 inhibitor AB598. Surfaced as a portfolio company of GV and added to the API Evangelist
  network as a life-sciences company profile. Arcus publishes an agent-facing surface (llms.txt, an AI content map, and an
  Organization schema) but no public developer API.
url: https://raw.githubusercontent.com/api-evangelist/arcus-biosciences/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Life Sciences
- Biotechnology
- Pharmaceuticals
- Oncology
- Immunotherapy
- Cancer
- Clinical Trials
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: http://arcusbio.com
- type: PrivacyPolicy
  url: https://arcusbio.com/privacy-policy/
- type: LLMsTxt
  url: llms/arcus-biosciences-llms.txt
- type: DomainSecurity
  url: security/arcus-biosciences-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence