Build a Fullstack Agentic App

Build a Fullstack Agentic Ap

1. Start from the project template

Use the official OpenServ project template:

• Project template: Fullstack Agentic App

Create the workspace from this template, then:

1. Go to Secrets and set the secret for the frontend URL (where your app should receive callbacks).
2. Assign that secret to the REST API agent so it knows where to send responses.

2. Run the frontend

Clone the demo app:

• GitHub: demoapp-openserv

This app:

• Provides a chat interface for sending requests.
• Calls the REST API agent with your prompt + parameters.
• Waits for the callback from the agent and renders the result.

Point the app to your backend by:

• Updating the environment variable or config to use your ngrok or production URL (including the /api/callback route or similar expected endpoint).
• Keeping the secret in OpenServ updated with the latest URL.

Once wired, you can move from local ngrok URLs to a stable production domain without changing your agent logic.