Xaira

Xaira Therapeutics is a South San Francisco-based biotechnology company building the transformative artificial intelligence that discovers and develops the next generation of medicines. Founded in 2023 and launched publicly in 2024 out of ARCH Venture Partners and Foresight Labs, Xaira couples large-scale generative and predictive AI models with in-house wet-lab data generation to design novel therapeutics, shorten development timelines, and lower the cost of bringing medicines to patients. The company's research spans protein design, molecular machine learning, and genome-scale perturbation modeling (its open X-Cell diffusion language model). Xaira does not currently operate a public developer platform, API, or SDK; this API Evangelist profile tracks its public web, security, and open-source research surface.

Xaira is profiled on the APIs.io network. Tagged areas include Company, Biotechnology, Artificial Intelligence, Drug Discovery, and Machine Learning.

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

🌐 Visit website 📡 Source on GitHub
15.6/100 emerging ▬ flat Agent 4/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyBiotechnologyArtificial IntelligenceDrug DiscoveryMachine LearningProtein DesignLife SciencesTherapeutics

Kin Score

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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 — 4/100 · 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 4 / 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/xaira: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Xaira Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown

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

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: xaira
name: Xaira
description: Xaira Therapeutics is a South San Francisco-based biotechnology company building the transformative artificial
  intelligence that discovers and develops the next generation of medicines. Founded in 2023 and launched publicly in 2024
  out of ARCH Venture Partners and Foresight Labs, Xaira couples large-scale generative and predictive AI models with in-house
  wet-lab data generation to design novel therapeutics, shorten development timelines, and lower the cost of bringing medicines
  to patients. The company's research spans protein design, molecular machine learning, and genome-scale perturbation modeling
  (its open X-Cell diffusion language model). Xaira does not currently operate a public developer platform, API, or SDK; this
  API Evangelist profile tracks its public web, security, and open-source research surface.
url: https://raw.githubusercontent.com/api-evangelist/xaira/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- lightspeed-venture-partners
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: '2026-07-21'
tags:
- Company
- Biotechnology
- Artificial Intelligence
- Drug Discovery
- Machine Learning
- Protein Design
- Life Sciences
- Therapeutics
image: https://www.xaira.com/favicon.ico
apis: []
common:
- type: DomainSecurity
  url: security/xaira-domain-security.yml
- type: WellKnown
  url: well-known/xaira-well-known.yml
- type: Website
  url: https://www.xaira.com/
- type: Blog
  url: https://www.xaira.com/news-content
- type: PrivacyPolicy
  url: https://www.xaira.com/privacy-policy
- type: TermsOfService
  url: https://www.xaira.com/terms-of-use
- type: GitHubOrganization
  url: https://github.com/Xaira-Therapeutics
- type: Support
  url: mailto:info@xaira.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io