Scale your SaaS without downtime or panic
Production-grade API stress testing for growing SaaS companies. Know your capacity limits, plan infrastructure scaling, and prevent revenue-killing outages before they happen.
Volume pricing available • Enterprise support
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 →
SaaS challenges we solve
for growing teams
As your SaaS grows, infrastructure questions become business-critical. Can we handle Black Friday traffic? Should we upgrade our database? How much headroom do we have? Get data-driven answers.
Used by SaaS companies scaling from 100 to 10,000+ concurrent users.
Know when to scale before users experience slowdowns
Test every major release under production load
Justify upgrades with concrete data, not guesses
Verify you can meet uptime and performance commitments
Production-grade features for SaaS teams
Everything you need to test, scale, and maintain high-performance APIs in production environments.
Multi-region load generation
Test from multiple AWS regions to simulate global user base
Historical trend analysis
Track performance metrics over time to spot regressions
Custom authentication flows
Support for complex OAuth, JWT refresh, and custom headers
Team collaboration
Share test results, compare runs, and plan capacity together
Common SaaS use cases
Before Black Friday / Peak Season
Test if your infrastructure can handle expected peak traffic. Plan scaling 2-4 weeks in advance.
Before Major Releases
Verify new features don't degrade performance. Catch regressions before customers do.
Infrastructure ROI Decisions
Should we upgrade the database? Add read replicas? Get concrete data to justify costs.
After Performance Incidents
Verify fixes worked. Ensure the same issue won't happen again at higher scale.
Enterprise Customer Onboarding
Large customer coming onboard? Test if your API can handle their expected usage patterns.
Quarterly Capacity Reviews
Regular testing to track capacity trends and plan infrastructure budget for next quarter.
Flexible pricing for growing SaaS teams
Pay-as-you-go testing with volume discounts. No fixed subscriptions. Scale your testing as your business grows.
Production-ready testing in 3 steps
Upload your OpenAPI spec
AI analyzes your production API and generates realistic user traffic patterns.
Configure test scenarios
Choose baseline, ramp, spike, or custom scenarios. Set concurrent user targets and duration.
Get capacity insights
Breaking point analysis, bottleneck identification, and infrastructure recommendations.
Know your limits. Scale with confidence.
Start with 5 free test runs. Pay-as-you-go after that. Volume pricing available for teams.