About Excession Labs

Excession Labs builds AI tools for authorized security work and provides model APIs.

Incursion is our terminal agent for offensive security. Operators use it for reconnaissance, web and API testing, code audit, exploit development, reverse engineering and malware analysis.

How Incursion works

A planner splits an engagement into tasks and workers run them in parallel under per-tool allow, deny and ask rules. Each finding links to its evidence. Incursion has its own harness, including the agent loop, tools and session history.

One account for the agent and API

The Excession API serves models through endpoints compatible with OpenAI Chat Completions, OpenAI Responses and Anthropic Messages, with streaming and tool calls. The terminal agent and API share an account, plan credit and balance. See the documentation to get started.

Use and contact

Use Incursion only on systems you own or have permission to test. Read the Acceptable Use Policy for the full rules.