This example contains a Travel Planner application with search capabilities using CoAgents.

These instructions assume you are in the coagents-travel/ directory

This agent is already hosted in LangGraph Platform. However, if you'd like to run it yourself first, install the dependencies:

cd agent
poetry install

Then, create a .env file inside ./agent with the following:

OPENAI_API_KEY=...
GOOGLE_MAPS_API_KEY=...

IMPORTANT: Make sure the OpenAI API Key you provide, supports gpt-4o.

Then, run the demo:

poetry run demo

First, install the dependencies:

cd ./ui
pnpm i

Then, create a .env file inside ./ui with the following:

OPENAI_API_KEY=...
NEXT_PUBLIC_CPK_PUBLIC_API_KEY=...

If you need a CopilotKit API key, you can get one here

Then, run the Next.js project:

pnpm run dev

Navigate to http://localhost:3000.

Run LangGraph studio, then load the ./agent folder into it.

Make sure to create the .env files mentioned above first!

A few things to try if you are running into trouble:

1. Make sure there is no other local application server running on the 8000 port.
2. Under /agent/travel/demo.py, change 0.0.0.0 to 127.0.0.1 or to localhost