Can I verify the webhook is from FormLoom?

Yes — Pro and Team plans provide a signing secret; FormLoom HMAC-signs the payload and you verify the header.

Webhook

Glossary

A POST request FormLoom sends to a URL you control when a submission arrives — for Slack, Discord, or custom automation.

Definition

A webhook is an HTTP callback: when a FormLoom form receives a submission, FormLoom sends an outbound POST request to a URL you've configured, with the submission payload as JSON. FormLoom supports generic webhooks (raw JSON), Slack-formatted payloads (Markdown message to a channel), and Discord-formatted payloads. Pro and Team tiers support webhook signing secrets to verify the sender.

Why it matters for form backends

Webhooks let you pipe form submissions into Slack, Discord, Zapier, Make, or your own backend in real time without polling the API.

FAQ

One webhook (including Slack/Discord templates) is included on the free tier. Unlimited webhooks are Pro.

Related terms

Autoresponder Form endpoint API key

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