Get early access to production-grade contract monitoring
You run the protocols. We watch the contracts. Sentinel gives Web3 ops teams real-time visibility into the events that matter — before they become incidents.
What Sentinel monitors for your team
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Large transfers Every token transfer above your threshold, flagged and routed to your ops channel within 15 seconds.
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Ownership changes OwnershipTransferred events catch admin key rotations, multisig changes, and contract upgrades the moment they land on-chain.
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Pause / unpause events Protocol emergency stops, circuit breaker toggles, and pause state changes — surfaced immediately to your on-call.
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Multi-chain coverage Ethereum, Arbitrum, Base, Polygon, and Optimism — one dashboard, one alerting policy, no duplicated configuration.
Trusted by Web3 ops teams
We run a multi-sig treasury across three chains. The moment we wired Sentinel into our Slack, we caught an unexpected OwnershipTransferred event on our Arbitrum vault during off-hours. Without an alert, we would have seen it in the morning — way too late.
After the OZ Defender shutdown we evaluated three tools. Sentinel was the only one that was hosted, required zero infrastructure from us, and had HMAC-signed webhooks out of the box. Setup took under an hour.
Our governance contracts sit on Polygon and Base. We needed a single pane of glass for pause events across both — not two separate monitoring setups. Sentinel handles it with one alert policy. The 15-second latency on Pro is exactly what incident response needs.
Join the ops teams on the waitlist
Get early access updates and be notified when your monitoring goes live.
Share and earn early access
Know another Web3 ops team that needs this? Share your link — every referral moves you up the list.