Early access · Limited spots

Your startup's
intelligence layer

One screen: behavioral PMF score, AI cost per feature, and autonomous incident response — for founders building AI products.

✓ You're on the list. We'll reach out before public launch.

No spam. Early access invite when we open the beta.

67%
PMF score — live, no survey
$0.06
AI cost per user, by feature
2:41am
Last auto-rollback. You slept.
📈

Behavioral PMF Score

Computed from retention curves and aha-moment detection — no survey required. The first tool that measures PMF from your actual user behavior.

First of its kind
💸

AI Cost per Feature

Know exactly which features are profitable and which are burning your OpenAI budget. Per-user, per-model, per-endpoint — in real time, not on your monthly invoice.

Autonomous Incident Response

A policy engine watches your production 24/7 and acts when something fires — auto-rollback, traffic shift, GitHub PR — while you sleep. Full audit trail of every action.

Sentinel
🎯

Three Personas, One Platform

Founder view: growth + PMF. On-call view: incidents + health. AI view: quality + cost. Same data, surfaced differently for what you need right now.

"We build AI SRE for Fortune 500 companies. What's ironic is that while building Traversal, we didn't have a tool like Vigil for our own stack. Every early-stage AI team needs this."

Raaz Dwivedi · Founder, Traversal — $48M, Sequoia + Kleiner Perkins

Built for founders who are
also the on-call engineer.

Replace Datadog + PostHog + Helicone + PagerDuty with one screen.