Record real traffic, replay as API tests
Tusk Drift automatically covers thousands of real-world edge cases in 10 lines of code.
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Tusk is trusted by engineering leaders at top companies
Install and initialize in 2 commands
Install Tusk CLI in service root
curl -fsSL https://cli.usetusk.ai/install.sh \| sh
# Set up Tusk automatically
tusk drift setup
Simulate real world traffic to detect regressions
Our SDK records API calls made to and from your Node.js and Python service in production to cover thousands of edge cases
Run fast, idempotent API tests without a live database or cache
Resolve regressions before they reach prod
Replay traces recorded from real traffic as tests to find unintended deviations in your PRs or locally via Tusk CLI. No need to write or maintain API tests.
Security-first with built-in PII redaction
Configure PII redaction rules and prevent specific domains or endpoints from being recorded. Our SDK and CLI are open source for transparency.
Run the highest-signal API tests in your CI
Tusk's AI filters recorded traces to create a high-quality API test suite. Auto-match relevant traces to your PR's code changes and run them as tests in CI.
Get your full API test suite with 10 lines of code.
Helpful resources on AI automated testing
Does Real API Traffic Make AI-Generated Tests Better? An A/B Evaluation of Tusk Drift
March 9, 2026
Scaling Parallel Agents with the Context-Verification-Harness Framework
March 8, 2026
What if Your Production Traffic Was Your Test Suite?
February 11, 2026
How Promptfoo Scaled Test Coverage Without Slowing Development
February 2, 2026