Configuration that flows

Real-time updates pulse through your application instantly.
No restarts, no downtime, just pure performance.

pip install vein
31.7x faster than DynaConf Type-safe AWS Native Zero config
from vein import config
from vein.sources import from_env

# API key that auto-updates from environment
config.api_key = from_env("OPENAI_API_KEY")

# Use it anywhere - always fresh, no restart needed!
def call_ai(prompt):
    response = openai.chat.completions.create(
        api_key=config.api_key.value,  # ✨ Always current
        model="gpt-4",
        messages=[{"role": "user", "content": prompt}]
    )
    return response

# Change OPENAI_API_KEY env var → next request uses new key automatically
# Zero downtime. Zero code changes. Zero restarts.

Built for modern Python

Everything you need for configuration management, nothing you don't

🔄

Live Updates

Configuration changes propagate instantly. No restarts, no downtime, no hassle.

Blazing Fast

31.7x faster than alternatives. Just 0.5μs per access with intelligent caching.

🛡️

Type Safe

Full type hints and runtime validation. Works seamlessly with Pydantic.

☁️

AWS Native

First-class support for AppConfig, Parameter Store, and Secrets Manager.

🎯

Smart Defaults

Zero configuration required. Just import and use. Add complexity only when needed.

🔌

Extensible

Plugin architecture for custom sources, validators, and caching strategies.

Performance that matters

Built for serverless, optimized for speed

0.5μs
per access
31.7x
faster than DynaConf
50ms
saved per AWS call
100%
Python compatible