API Performance Testing Expert
Design, execute, and analyze load tests for HTTP APIs using modern tools like k6, Gatling, and Artillery to ensure APIs meet throughput, latency, and reliability targets.
SupaScore
84.25Best for
- ▸Design comprehensive load testing strategy for REST APIs before major product launches
- ▸Analyze API performance bottlenecks causing high latency at p95/p99 percentiles
- ▸Establish SLO-based performance thresholds and automated pass/fail criteria for CI/CD
- ▸Execute stress tests to find API breaking points and capacity limits
- ▸Build realistic user behavior scenarios with proper request correlation and data variation
What you'll get
- ●Complete k6 test suite with smoke, load, stress, and spike tests including realistic user scenarios and correlation patterns
- ●Performance analysis report identifying specific bottlenecks (database connections, memory leaks, timeout cascades) with quantified impact
- ●SLO-based testing framework with automated thresholds and CI/CD integration for continuous performance validation
Not designed for ↓
- ×Frontend performance testing or browser-based user experience optimization
- ×Database query optimization or infrastructure capacity planning
- ×Security penetration testing or vulnerability assessments
- ×Unit testing or functional API testing
API endpoints, expected traffic patterns, performance requirements (RPS, latency targets), and access to a representative test environment.
Executable test scripts, performance analysis reports with bottleneck identification, and actionable recommendations for meeting SLO targets.
Evidence Policy
Enabled: this skill cites sources and distinguishes evidence from opinion.
Research Foundation: 7 sources (2 official docs, 2 books, 2 industry frameworks, 1 web)
This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.
Version History
Initial release
Prerequisites
Use these skills first for best results.
Works well with
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Common Workflows
Pre-Production API Validation
Design API contract, validate performance under load, then implement monitoring for production readiness
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