Inferact

Inferact is a startup founded by the creators and core maintainers of vLLM, the widely adopted open-source large language model inference engine. The company exists to supercharge vLLM adoption, developing inference and serving optimizations at the frontier where models meet hardware at scale and flowing those improvements back into the open-source community. As of January 2026 the company had raised roughly $150M at an $800M valuation and is recruiting engineers and researchers. As of this enrichment pass Inferact publishes only a company announcement page at inferact.ai and does not yet expose a public API, developer portal, SDKs, or commercial product docs.

Inferact is profiled on the APIs.io network. Tagged areas include Company, Artificial Intelligence, Machine Learning, LLM Inference, and Model Serving.

🌐 Visit website 📡 Source on GitHub
6.8/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
CompanyArtificial IntelligenceMachine LearningLLM InferenceModel ServingOpen SourceInfrastructure

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 6.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 0.0 / 20
Commercial Clarity 0.0 / 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/vllm-inferact: 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.

Vllm Inferact Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: vllm-inferact
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/vllm-inferact.png
name: Inferact
description: Inferact is a startup founded by the creators and core maintainers of vLLM, the widely adopted open-source large
  language model inference engine. The company exists to supercharge vLLM adoption, developing inference and serving optimizations
  at the frontier where models meet hardware at scale and flowing those improvements back into the open-source community.
  As of January 2026 the company had raised roughly $150M at an $800M valuation and is recruiting engineers and researchers.
  As of this enrichment pass Inferact publishes only a company announcement page at inferact.ai and does not yet expose a
  public API, developer portal, SDKs, or commercial product docs.
url: https://raw.githubusercontent.com/api-evangelist/vllm-inferact/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- lightspeed-venture-partners
x-founders:
- Simon Mo
- Woosuk Kwon
- Kaichao You
- Roger Wang
- Joseph Gonzalez
- Ion Stoica
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Artificial Intelligence
- Machine Learning
- LLM Inference
- Model Serving
- Open Source
- Infrastructure
apis: []
common:
- type: DomainSecurity
  url: security/vllm-inferact-domain-security.yml
- type: Website
  url: https://inferact.ai/
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: 1
  pass: local-v1