pocketflow/cookbook/pocketflow-mcp/README.md

Simple PocketFlow Chat

A basic chat application using PocketFlow with OpenAI's GPT-4o model.

Features

• Conversational chat interface in the terminal
• Maintains full conversation history for context
• Simple implementation demonstrating PocketFlow's node and flow concepts

Run It

1. Make sure your OpenAI API key is set:

   export OPENAI_API_KEY="your-api-key-here"
   

   Alternatively, you can edit the utils.py file to include your API key directly.

2. Install requirements and run the application:

   pip install -r requirements.txt
   python main.py
   

Run the MCP

Run the server

python simple_server.py

Run the client

python simple_client.py

How It Works

flowchart LR
    chat[ChatNode] -->|continue| chat

The chat application uses:

• A single ChatNode with a self-loop that:
  • Takes user input in the prep method
  • Sends the complete conversation history to GPT-4o
  • Adds responses to the conversation history
  • Loops back to continue the chat until the user types 'exit'

Files

• main.py: Implementation of the ChatNode and chat flow
• utils.py: Simple wrapper for calling the OpenAI API