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JunctionRelay Server - User Guide

Welcome to the JunctionRelay User Guide. This section contains all the documentation you need to install, configure, and use JunctionRelay across a wide variety of platforms and environments. Whether you're setting up your first server or configuring advanced payloads and services, this guide will walk you through every step.


📦 Server Installation

Learn how to install the JunctionRelay backend server on your preferred platform:

  • Unraid — Install via Community Applications.
  • Raspberry Pi — Deploy using Docker and Portainer.
  • Windows — Run the pre-built binaries with ease.

🔧 ESP32 Installation

Get your ESP32 devices connected and running JunctionRelay firmware:


🔐 Authentication

Understand the available authentication modes:

  • No authentication
  • Local login
  • Cloud-based OAuth via Clerk

Read more »


🧾 Licenses

Learn about the different license tiers:

  • Free license (default with Cloud login)
  • Pro license (supports project development and unlocks extra features)

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🗄️ Database

Explore how JunctionRelay stores and manages your data:

  • Local database options
  • Identity and backup/restore support

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📟 Devices

Manage and view the devices registered with your JunctionRelay instance.

Read more »


📥 Collectors

Configure data collectors to pull sensor, system, or network data into JunctionRelay.

Read more »


🧩 Services

Enable integrations and data forwarding services such as:

  • MQTT Broker for pub/sub messaging
  • Home Assistant integration

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📦 Payloads

Understand the structure and purpose of payloads:

  • How data is sent from Collectors to Devices

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🔀 Junctions

Junctions link your data sources to your devices with streaming logic and layouts.

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☁️ Cloud

Explore cloud-specific features, including cloud login, device sync, and more.

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📱 Mobile App

Information about the JunctionRelay mobile app and supported functionality.

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Need developer docs? See the Developer Guide.