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GlossaryConceptUpdated May 2026

Webhook

noun · also: trigger, polling, api-key

What is webhook?

A webhook is an HTTP request sent by one system to another when an event happens — the foundation of real-time integrations.

Definition

Full definition of webhook

Webhooks invert the usual API model. Instead of you calling an API to ask 'has anything changed?', the API calls you when something does. Most modern apps (Stripe, Shopify, GitHub, Calendly, Typeform) expose webhooks so platforms like Tiny Command can build real-time triggers. Tiny Command auto-registers webhooks with the third-party app when you set up a trigger — you don't have to manage URLs or secrets manually.

In practice

Webhook examples

Stripe webhook
When a charge succeeds, Stripe sends a POST request to Tiny Command's URL with the charge JSON in the body.
FAQ

Common questions about webhook

Are webhooks secure?
Yes — most apps sign webhook payloads with HMAC so receivers can verify authenticity. Tiny Command validates every signature automatically.
What if a webhook fails to deliver?
Reputable apps retry failed webhook deliveries with exponential backoff. Tiny Command's webhook endpoints are highly available (multi-region).