How to send push notifications with cURL

Updated on March 29, 2026

Learn how to send Signalgrid push notifications directly with cURL
from the command line.

Signalgrid makes it straightforward to send notifications from cURL. The platform uses a simple model built around your client_key, a target channel, and a few core fields such as title, body, type, and optional critical.

cURL is the fastest way to test the Signalgrid Push API, debug payloads, or wire notifications into existing tools that already run shell commands.

What you need

  • A Signalgrid account
  • Your client key
  • A channel token
  • cURL available in your environment

Basic example

The following example sends a simple notification with cURL.

curl -X POST https://api.signalgrid.co/v1/push   -d "client_key=YOUR_CLIENT_KEY"   -d "channel=YOUR_CHANNEL_TOKEN"   -d "title=Deployment Finished"   -d "body=The production deployment completed successfully"   -d "type=SUCCESS"

Required fields

Field
Description
client_key
Authenticates the request on behalf of your Signalgrid user
channel
The channel token that should receive the notification
title
Short notification title
body
Main notification message
type
Visual notification type such as INFO, WARN, SUCCESS, or CRIT
critical
Optional flag for urgent notifications

Environment variables

Keeping credentials outside your code is usually the better move.

export SIGNALGRID_CLIENT_KEY=your_client_key
export SIGNALGRID_CHANNEL=your_channel_token

Why cURL is useful

cURL is the fastest way to test the Signalgrid Push API, debug payloads, or wire notifications into existing tools that already run shell commands.

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