Python SDK¶

The Strahl Python SDK provides a typed client for the Strahl API, message parsing for OpenAI and Anthropic transcript formats, and a decorator-based tool registration API.

Install: pip install strahl
Requires: Python 3.10+
Dependency: httpx
Source: github.com/strahl-labs/strahl-client

Quickstart¶

import os
import strahl
from strahl import Label

strahl.set_api_key(os.environ["STRAHL_API_KEY"])
strahl.set_role_labels({
    "user":      Label(source={"user"},      visibility={"user"}),
    "assistant": Label(source={"assistant"}, visibility={"user"}),
})

@strahl.tool(
    requires=Label(source={"user"}, visibility={"user"}),
    produces=Label(source={"email-tool"}, visibility={"user"}),
)
def send_email(to: str, subject: str, body: str) -> str:
    ...

analysis = strahl.analyze(messages)
analysis.raise_if_denied()

In this section¶

Getting Started — installation, first analysis, where to call analyze()
Concepts — labels, policies, tag sets, how analysis works
Guides — prompt injection defense, multi-tenant isolation, provider formats
Reference — full API reference