# Antigen

**Canonical:** https://apis.io/providers/antigen/  
**Website:** https://antigen.sh/  
**APIs profiled:** 0

Antigen is an AI-powered continuous offensive security platform for the enterprise. It deploys autonomous AI penetration-testing agents against production systems every night, maps and exploits the full attack surface, and pairs the automated testing with a monthly human red-team assessment. Findings ship with reproduction steps and remediation guidance delivered directly into engineering tools such as GitHub and Linear. Antigen serves financial services, healthcare, retail, and government sectors, and is a Y Combinator (Fall 2025) company backed by Lightspeed, DST Global, and Susa Ventures.

## Kin Score — 6.3 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 6.3).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 6.6 |
| Access Clarity | 6.6 |

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Antigen Domain Security** — TLSv1.2 · DMARC

## Tags

Company, Security, Cybersecurity, Penetration Testing, Offensive Security, Red Team, Artificial Intelligence, Vulnerability Management

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/antigen/). Scores are computed from the provider's own public artifacts under a published rubric.