LangChain Tool Calling Agent

A conversational LangChain agent powered by GPT-4o with Scalekit integration that demonstrates tool calling capabilities. This project serves as a foundation for building LangChain agents with real API integrations.

Features

• 🤖 GPT-4o Agent: Uses OpenAI's GPT-4o for intelligent conversations and tool selection
• � Scalekit Tools: Integrated tools for various services (Gmail, etc.)
• �💬 Interactive Chat: Command-line interface for natural conversations
• 🔗 OAuth Authorization: Secure authorization flow for connected services

Prerequisites

⚠️ Required: You need both OpenAI and Scalekit credentials.

1. OpenAI API Key: Get from OpenAI Platform
2. Scalekit Credentials: Get from your Scalekit dashboard
3. Ensure you have sufficient credits in your OpenAI account

Installation

1. Clone or download this project
2. Install dependencies:

   pip install -r requirements.txt

3. Set up your environment variables:

   cp .env.example .env
   # Edit .env and add your credentials

Configuration

Create a .env file with the following variables:

# OpenAI Configuration
OPENAI_API_KEY=your_openai_api_key_here

# Scalekit Configuration From dashboard
SCALEKIT_CLIENT_ID=your_scalekit_client_id
SCALEKIT_CLIENT_SECRET=your_scalekit_client_secret
SCALEKIT_ENV_URL=your_scalekit_environment_url

get these from your Scalekit dashboard at app.scalekit.com Developers-> Settings -> API Credentials

Usage

1. Run the agent:

   python main.py

2. Follow the authorization prompts for each service (e.g., Gmail)

3. Start chatting with the agent

Example Usage

You: Hello!
Agent: Hi! I can help you with various tasks using connected services.

You: fetch my first unread email

Configuration Options

In main.py, you can customize:

user_name = "user-1234"  # Change to your desired identifier
connection_names = ["gmail"]  # Add more connection names as needed

Extending the Agent

To add more services:

1. Add your connection name to connection_names array
2. Ensure the connection is configured in your Scalekit dashboard app.scalekit.com Agent Actions -> Connections -> Create Connection
3. The agent will automatically include tools for the new service