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Webhooks let your systems react the moment something happens at Nomos: a lead converts, a subscription activates, an invoice is finalized. Register an endpoint, subscribe to the topics you care about, and Nomos sends a signed HTTPS request as soon as the event occurs, so you can update your CRM, trigger downstream workflows, or notify your customers without polling.

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Event shape

Every delivery uses the same envelope. The context carries IDs only: fetch the resource when you need its current state. 
{
  "id": "evt_abc123def456ghi789jkl012",
  "timestamp": "2026-01-15T10:30:00.000Z",
  "topic": "subscription.created",
  "context": { "subscription": "sub_abc123def456ghi789jkl012" }
}

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Resources

Receive webhooks

Set up an endpoint and register it in the dashboard.

Verify requests

Validate the X-Nomos-Signature header.

Retries

Handle duplicates, out-of-order events, and timeouts.

Event topics

Browse every event Nomos sends.