Make.com · api · fg-0035

Creating a custom webhook through the API returns 400 for missing parameters

400 on POST /hooks with typeName gateway-webhook

Verified 2026-07-16 · Confirmed by 0 builders · Trust 50/100

Cause

The gateway-webhook type requires headers, method and stringify in its data object, although they look optional.

Fix

Send all three explicitly.

Apply

POST /api/v2/hooks {"teamId": 123, "typeName": "gateway-webhook", "name": "probe", "data": {"headers": false, "method": false, "stringify": false}}

Affects: Make API v2, July 2026

claude mcp add --transport http footgun https://getfootgun.com/api/mcp