Reference

Expressions

Most text fields interpolate {{ … }} from the event payload.

1. 1

   Where they work

   HTTP body, AI prompts, email to, transform mapping, and most string config fields.

2. 2

   Helpers

   uppercase, lowercase, trim, length, and replace wrap another path: {{uppercase(email)}}.

{{email}}

Top-level field on the event payload

{{$json.email}}

Same payload via $json

{{items[0].name}}

First item in a list

{{$now}}

Current UTC timestamp

{{uppercase(email)}}

uppercase, lowercase, trim, length, replace