Admin UI

Use the agentgateway Admin UI to view and manage your standalone proxy configuration in real time.

About

The agentgateway Admin UI is a built-in web interface that runs alongside the proxy on port 15000 by default. In standalone mode, the UI is fully interactive — you can inspect your current configuration and manage your proxy without restarting agentgateway.

The Admin UI is separate from the Web UI integrations, which are third-party AI chat frontends (such as Open WebUI or LibreChat) that you connect to agentgateway as a backend. The Admin UI is the management interface for agentgateway itself.

Open the Admin UI

1. Start agentgateway with a config file.

   agentgateway -f config.yaml

   Example output:

   INFO app  serving UI at http://localhost:15000/ui

2. Open http://localhost:15000/ui/ in your browser.

   The Admin UI dashboard shows your configured listeners and port bindings.

   

   

Customize the Admin UI port

By default, the Admin UI binds to localhost:15000. To use a different address or port, set adminAddr in the config section of your config file.

1. Add or update the adminAddr field in your config file. The value must use ip:port format.

   # yaml-language-server: $schema=https://agentgateway.dev/schema/config
   config:
     adminAddr: localhost:9090

2. Start agentgateway with the updated config.

   agentgateway -f config.yaml

   Example output:

   INFO app  serving UI at http://localhost:9090/ui

3. Open the UI at the new address. In this example, navigate to http://localhost:9090/ui/.