The Python Tusk Drift SDK enables fast and deterministic API testing by capturing and replaying API calls made to/from your service. Automatically record real-world API calls, then replay them as tests using the Tusk CLI to find regressions. During replay, all outbound requests are intercepted with recorded data to ensure consistent behavior without side-effects.

Try it on a demo repo →

Documentation

For comprehensive guides and API reference, visit our full documentation.

SDK Guides

• Initialization Guide - Set up the SDK in your Python application
• Environment Variables - Environment variables reference
• Quick Start Guide - Record and replay your first trace

Requirements

• Python 3.9+

Tusk Drift currently supports the following packages and versions:

Package	Supported Versions
Flask	>=2.0.0
FastAPI	>=0.68.0
Django	>=3.2.0
Requests	all versions
HTTPX	all versions
aiohttp	all versions
urllib3	all versions
grpcio (client-side only)	all versions
psycopg	>=3.1.12
psycopg2	all versions
Redis	>=4.0.0
Kinde	>=2.0.1
PyJWT	all versions
urllib.request	all versions

If you're using packages or versions not listed above, please create an issue with the package + version you'd like an instrumentation for.

Installation

Step 1: Install the CLI

First, install the Tusk Drift CLI by following our CLI installation guide.

Step 2: Set up Tusk Drift

AI-powered setup (recommended)

Use our AI agent to automatically set up Tusk Drift for your service:

cd path/to/your/service
export ANTHROPIC_API_KEY=your-api-key
tusk setup

The agent will analyze your codebase, install the SDK, instrument it into your application, create configuration files, and test the setup with recording and replay.

Manual setup

Alternatively, you can set up Tusk Drift manually:

1. Install the SDK:

   pip install tusk-drift-python-sdk

2. Create configuration: Run tusk init to create your .tusk/config.yaml config file interactively, or create it manually per the configuration docs.

3. Initialize the SDK: Refer to the initialization guide to instrument the SDK in your service.

4. Record and replay: Follow the quick start guide to record and replay your first test!

Troubleshooting

Having issues?

• Check our initialization guide for common setup issues
• Create an issue or reach us at support@usetusk.ai.

Community

Join our open source community on Slack.