Current Telegram and Discord Subscription Bot Webhooks

This archived URL previously described an older webhook integration. Use the current reference for event payloads, signature headers, and delivery behavior:

• Subscription bot webhook overview
• Register a project webhook
• Verify webhook signatures
• Handle webhook retries and duplicates

Current events use the id, event, created_at, schema_version, and data envelope. Delivery headers include X-Webhook-Signature and X-Project-ID. The event envelope's schema_version is v1; the REST route version is /v2.