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Installing the NSP daemon puts axon-daemon.exe on your machine, registers it as a Windows Service, and starts serving the NSP API on localhost:7842. Most users should use the GUI installer — it handles everything automatically. The manual path is available if you prefer scripted deployments or need to install without an interactive session.

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System Requirements

Before you install, confirm your environment meets these requirements:
Chrome, .NET, and JDK are only required for probing those specific runtime types. If you only probe V8-based apps you only need Chrome, and so on.
1

Download the installer

Go to www.nelieo.com and download Nelieo NSP Setup.exe. Save it anywhere on your machine.
2

Run as Administrator

Right-click Nelieo NSP Setup.exe and select Run as administrator. Accept the UAC prompt when it appears.
3

Complete the setup wizard

Follow the installer prompts. The installer automatically:
  • Places axon-daemon.exe at C:\Program Files\Nelieo\axon-daemon.exe
  • Adds C:\Program Files\Nelieo to the system PATH
  • Creates C:\ProgramData\Nelieo\axon.toml with default configuration
  • Creates C:\ProgramData\Nelieo\axon_keys.json (initially empty)
  • Registers NSPDaemon as an auto-start Windows Service
  • Starts the daemon immediately
4

Verify the installation

Open a new terminal (so the updated PATH is active) and run:
You should see:
5

Generate your first API key

The command prints your new key and adds it to the keys file immediately — no restart required. Store the key somewhere safe; the plaintext is shown only once.

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Option 2: Manual Installation

Use this path for scripted or headless deployments.
1

Download the binary

Download axon-daemon.exe directly:
2

Place the binary and update PATH

Run the following in an Administrator PowerShell session:
3

Create the config directory

4

Generate the default config

This writes C:\ProgramData\Nelieo\axon.toml with all defaults. Edit it before continuing if you need non-default settings. See Configuration.
5

Register and start the Windows Service

6

Verify the installation

Open a new terminal and run the health check:
Then generate an API key and confirm authenticated access works:

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Development Mode (No Service)

If you want to run the daemon without installing a Windows Service — for example, in a CI environment or during active development — skip the install and start steps and launch directly:
The daemon runs in the foreground and exits when you press Ctrl+C. All API endpoints are available on localhost:7842 exactly as they are in service mode.
Pair foreground mode with AXON_AUTH__REQUIRE_KEY=false and AXON_LOGGING__FORMAT=text for a frictionless development loop without needing to manage keys or parse JSON logs.

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Uninstalling

If you used the GUI installer, open Settings → Apps (or Control Panel → Programs → Uninstall a program), find Nelieo NSP, and click Uninstall.
Deleting C:\ProgramData\Nelieo removes your axon_keys.json and all API keys stored there. Back up any keys you want to keep before running this command.