API load testing without the scripting pain
Skip the k6/JMeter learning curve. Upload your OpenAPI spec and get AI-generated, realistic load tests in 5 minutes. No scripting, no infrastructure, no headaches.
Free tier • No credit card required
See how your API behaves under realistic traffic
Experience realistic load scenarios instantly. No signup required.
Demo uses JSONPlaceholder by default. Enter any public GET endpoint.
Demo limit: 20 seconds max
The demo uses simplified scenarios. Full tests use AI-generated traffic patterns that mimic real user behavior and production usage.
Full reports include breaking point detection, traffic headroom, bottleneck analysis, and fix recommendations.
Want to test your own APIs? Create a free account →
Traditional load testing vs AI-powered
| Feature | k6 / JMeter / Locust | API Stress Lab |
|---|---|---|
| Setup time | 2-8 hours (write scripts) | 5 minutes (upload spec) |
| Scripting required | Yes (JavaScript/Groovy/Python) | No |
| Realistic traffic patterns | Manual (hard to get right) | AI-generated |
| Infrastructure | Self-hosted or expensive SaaS | Fully managed |
| Results interpretation | Raw metrics (you figure it out) | AI insights + recommendations |
| Maintenance | Update scripts when API changes | Auto-updates from spec |
| Pricing | Free (DIY) or $100+/mo (SaaS) | Pay per test (from $0) |
Load testing built for
modern engineering teams
Our AI understands your OpenAPI spec and generates realistic user journeys automatically. No more manual scripting, no more guessing at traffic patterns, no more infrastructure headaches.
AI creates realistic scenarios from your API spec
Baseline, ramp, spike, and chaos testing
Not just metrics — specific recommendations
Tests auto-update when your API changes
The technical details that matter
Built on industry-standard tools (k6 under the hood) with AI orchestration on top. You get the power of k6 without the complexity.
Distributed load generation
Multi-region testing from AWS infrastructure
Real HTTP(S) traffic
Actual requests to your API, not simulated
Performance metrics
P50, P95, P99 latency, RPS, error rates, and more
API authentication
Supports API keys, Bearer tokens, OAuth, and custom auth
Migrating from k6, JMeter, or Locust?
You already know the value of load testing. We just make it 10x easier. Keep your existing knowledge, skip the scripting. If you have an OpenAPI spec, you can run your first test in under 5 minutes.
From OpenAPI spec to results in 3 steps
Upload your OpenAPI spec (YAML or JSON)
Our AI parses your endpoints, parameters, and schemas to understand your API structure.
AI generates realistic test scenarios
User journeys, traffic patterns, and data flows modeled from your spec. No scripting required.
Get actionable insights in 5 minutes
Breaking point, bottlenecks, and specific recommendations to improve performance.
Try it free — no scripting required
Upload your OpenAPI spec and run your first load test in 5 minutes. Free tier includes 5 test runs.