theedon / africhain

Python based Langchain Agent

LangChain Agent

This project implements a Python-based LangChain agent that utilizes various tools to provide information based on natural language queries. The agent is exposed over a single FastAPI endpoint and can be interacted with using Postman.

Features

• Query Database: Queries the Northwind database.
• Search Internet: Performs general internet searches.
• Get Weather: Retrieves weather information.
• Get IP Info: Obtains IP-related information.
• Get Pokémon Info: Fetches details about Pokémon.
• Get Movie Info: Retrieves movie information.

Tools Integrated

1. query_db: Queries the Northwind database.
2. search_internet: Performs general internet searches.
3. get_weather: Retrieves weather information.
4. get_ip_info: Obtains IP-related information.
5. get_pokemon_info: Fetches details about Pokémon.
6. get_movie_info: Retrieves movie information.

FastAPI Endpoint

The agent is exposed over a single FastAPI endpoint where you can input a natural language query using Postman. The agent automatically selects the appropriate tool based on the query and responds with accurate information.

Endpoint

POST /query

Request

Body:

{
  "query": "Your natural language query here"
}

Response

Body:

{
  "response": "The agent's response based on your query"
}

Setup and Installation

1. Clone the repository:

   git clone https://github.com/Theedon/AfriChain.git
   cd AfriChain

2. Install dependencies: Ensure you have Poetry installed.

   poetry install

3. Set environment variables: Create a .env file in the root of your project and add the necessary environment variables:

    OPENAI_API_KEY=your_openai_api_key
    GOOGLE_API_KEY=your_google_api_key
    HUGGINGFACEHUB_API_TOKEN=your_huggingfacehub_api_token
    HF_TOKEN=your_hf_token
    LANGCHAIN_API_KEY=your_langchain_api_key
    MISTRAL_API_KEY=your_mistral_api_key
    TOGETHER_API_KEY=your_together_api_key
    ANTHROPIC_API_KEY=your_anthropic_api_key
    OPENWEATHERMAP_API_KEY=your_openweathermap_api_key
    OMDB_API_KEY=your_omdb_api_key
    TMDB_API_KEY=your_tmdb_api_key
    TAVILY_API_KEY=your_tavily_api_key
   

4. Run the application: Use Poetry to run the FastAPI application with Uvicorn, enabling hot reloading.

   poetry run africhain

Usage

You can interact with the agent using Postman. Send a POST request to http://0.0.0.0:8000/query with a JSON body containing your query.

Deployment

The project is deployed on render as a service at this url