The Safety Layer
For AI Agents.
Agents retry. They repeat everything - double charges, duplicate emails, redundant calls. ReplaySafe remembers what already happened, so retries skip what succeeded and resume from where they left off.
Execution Memory.
Autonomous agents fail. It’s inevitable. But retrying a failed agent job shouldn't charge your customer twice or corrupt your database.
Intercept Side Effects
Automatically pause and verify dangerous actions (Payments, Emails, DB Writes) before they execute.
Result Replay
Replaysafe remembers the outcome of successful steps. On retry, we skip the action and replay the original result.
"ReplaySafe detected a successful payment fingerprint in Attempt_01. Execution halted to prevent double-spend. Replaying cached receipt."
Drop-in safety for
// LangGraph node - UNSAFE on retry
async function chargeNode(state) {
// ⚠️ On retry: charges TWICE
const charge = await stripe
.charges.create({
amount: state.amount,
customer: state.customerId,
});
return { chargeId: charge.id };
}// LangGraph node - SAFE on retry
async function chargeNode(state, guard) {
// ✅ On retry: replays cached result
const charge = await guard.langGraph(
'stripe-charge',
{ amount: state.amount },
() => stripe.charges.create({
amount: state.amount,
customer: state.customerId,
})
);
return { chargeId: charge.id };
}Infrastructure Visibility
Infrastructure Telemetry.
Know when the infrastructure your agents depend on starts to degrade - before a retry turns into a disaster.
Heartbeat Monitoring
Zero-config cron and job monitoring. If your background job stops reporting, ReplaySafe fires an alert before any agent retries into a broken state.
Silent Tunnel Detection
WireGuard and SSH tunnels fail silently - the process stays UP while data stops flowing. Sentinel detects stale handshakes and latency spikes before they break autonomous access.
Failure Pattern Intelligence
ReplaySafe tracks recurring failure windows, health score trends, and cascade incidents - giving agents and engineers actionable context, not just raw alerts.
Beyond Payments
Every Provider. One Safety Net.
ReplaySafe sits between your agents and ALL your side-effect providers - Stripe is just one of many.
Plus any operation via guard.effect()