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Zero - Fast Python RPC Framework

Zero is a simple Python RPC framework to build fast and high performance microservices or distributed servers.

Key Features

  • ⚡ Faster communication between microservices using ZeroMQ or raw TCP
  • 💬 Message-based communication with traditional client-server patterns
  • 🔄 Support for both async and sync
  • 🚀 Multi-core support - Base server utilizes all CPU cores
  • 📦 Built-in schema support (Msgspec, Pydantic)
  • 🤖 Client Code generation with schema support
  • 📊 Exceptional performance - See benchmarks

Philosophy

  • Zero Learning Curve: Add functions and spin up a server - literally that's it! The framework hides the complexity of messaging patterns.
  • ZeroMQ Power: Built on the awesome ZeroMQ library for reliable, fast inter-service communication.

Quick Start

from zero import ZeroServer

app = ZeroServer(port=5559)

@app.register_rpc
def echo(msg: str) -> str:
    return msg

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

Call the server:

from zero import ZeroClient

client = ZeroClient("localhost", 5559)
print(client.call("echo", "Hello World!"))

Installation

pip install zeroapi

For additional features:

pip install "zeroapi[uvloop]"      # Better async performance
pip install "zeroapi[pydantic]"    # Pydantic support
pip install "zeroapi[tornado]"     # Windows async support
pip install "zeroapi[all]"         # All extras

Documentation

Explore the full documentation to get started:

Performance

Zero achieves exceptional performance across different protocols:

Protocol hello world (req/s) 99% latency (ms)
TCP 100,752 2.33
Async 41,092 4.41
Sync 27,571 6.65

See full benchmarks for more frameworks.

Contributing

Contributions are welcome! Please check out our contributing guide.

License

MIT License - see LICENSE file for details

Please leave a ⭐ if you like Zero!

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