smarta2a 0.1.0

A Python package for creating servers and clients following Google's Agent2Agent protocol

FastA2A

A Python package for creating a server following Google's Agent2Agent protocol

Features

✅ Full A2A Protocol Compliance - Implements all required endpoints and response formats

⚡ Decorator-Driven Development - Rapid endpoint configuration with type safety

🧩 Automatic Protocol Conversion - Simple returns become valid A2A responses

🔀 Flexible Response Handling - Support for Tasks, Artifacts, Streaming, and raw protocol types if needed!

🛡️ Built-in Validation - Automatic Pydantic validation of A2A schemas

⚡ Single File Setup - Get compliant in <10 lines of code

🌍 Production Ready - CORS, async support, and error handling included

Installation

pip install fasta2a

Simple Echo Server Implementation

from fasta2a import FastA2A

app = FastA2A("EchoServer")

@app.on_send_task()
def handle_task(request):
    """Echo the input text back as a completed task"""
    input_text = request.content[0].text
    return f"Echo: {input_text}"

if __name__ == "__main__":
    app.run()

Automatically contructs the response:

{
  "jsonrpc": "2.0",
  "id": "test",
  "result": {
    "id": "echo-task",
    "status": {"state": "completed"},
    "artifacts": [{
      "parts": [{"type": "text", "text": "Echo: Hello!"}]
    }]
  }
}

Development

To set up the development environment:

# Clone the repository
git clone https://github.com/siddharthsma/fasta2a.git
cd fasta2a

# Create and activate virtual environment
python -m venv venv
source venv/bin/activate  # On Windows: venv\Scripts\activate

# Install development dependencies
pip install -e ".[dev]"

License

This project is licensed under the MIT License - see the LICENSE file for details.