StableBrowse
Authenticated systems, end-to-end.
Cookies, SSO, and per-user secrets injected at the browser layer. Sessions persist across runs. Works with the legacy enterprise portals most agents can't reach.
Backed by Y Combinator
Enterprise Browser Agent Runtime
Browser Engine for AI Agents
Auth, reliability, and LLM intent, solved at the browser layer so your agents actually run in production.
What we solve
Three problems break browser agents in production. We fix all three.
Agents that survive UI changes.
Knowledge graphs route around DOM drift. Empirical reliability scores per node, selector fallbacks, and network-assisted extraction when the UI is flaky.
Hallucinations stopped before they execute.
Watchdogs detect runaway loops, repeated scrolls, and stale state. Policy checks gate risky actions. Circuit-breakers, not prayers.
Engineering
How the engine works under the hood.
Switch to the view to see the live structure.
Pre-indexed sites
Every site you connect is mapped into a structured graph upfront. Agents follow a verified surface instead of guessing through raw HTML.
Snapshot compression
Semantic accessibility trees plus KG-driven DOM pruning. 70% reduction without vision models. Works with any LLM, including small ones.
Self-healing routes
Reliability is tracked per node. When sites change, low-reliability paths are marked stale and the graph re-routes through verified alternatives.
Use cases
Built for enterprise workflows.
Live demos of agents running across authenticated portals.
Put a browser agent in production.
We'll show you the working agent for your workflow.