REST API

The CloudSignal REST API provides server-side access to manage MQTT resources programmatically. These endpoints are designed to be called from your backend, not from frontend code.

Authentication

All REST API endpoints use Secret Key authentication:

curl https://api.cloudsignal.app/v2/utilities/presence \
  -H "X-Secret-Key: sk_your_secret_key"

REST API endpoints require a secret API key (sk_ prefix). Create one in Dashboard → API Keys.

Base URL

https://api.cloudsignal.app/v2/utilities

Endpoints

Presence

Check which users are currently online, filter by topic

Retained Messages

List and delete retained messages

Topics

List active topics and their subscribers

User Management

Force disconnect users, query user subscriptions