API Testing Skills for AI Agents

API testing with Playwright APIRequestContext for REST and GraphQL endpoints

Production-grade REST API automation framework with REST Assured, POJO serialization using GSON, PayloadManager pattern, E2E integration workflows with TestNG ITestContext, and Allure reporting.

HTTP assertion library for Node.js API testing with Express, Koa, and Fastify

GraphQL API testing with schema validation, query testing, and mutation verification

Postman collections, environments, pre-request scripts, and Newman CI

API gateway testing skill covering rate limiting validation, request routing, authentication proxy testing, load balancing verification, circuit breaker testing, and gateway configuration validation for Kong, Envoy, and AWS API Gateway.

FastAPI application testing with TestClient, dependency injection overrides, async testing, database testing with SQLAlchemy, and OpenAPI validation.

Expert-level Robot Framework testing skill covering keyword-driven syntax, SeleniumLibrary, RequestsLibrary, custom Python keywords, data-driven testing, resource files, and parallel execution with Pabot.

Comprehensive testing patterns for Katalon Studio including codeless record-and-playback, Groovy scripted testing, custom keywords, data-driven testing, cross-browser execution, and CI/CD integration with Katalon TestOps.

AI-powered testing patterns with Mabl including auto-healing tests, visual regression, API testing, performance monitoring, CI/CD integration, and intelligent test maintenance using Mabl's machine learning capabilities.

Teach agents to run Nuclei DAST and API security scans in CI, write templates, and gate builds on actionable findings.

Comprehensive API security testing based on OWASP API Security Top 10 including broken authentication, injection attacks, rate limiting, BOLA/BFLA vulnerabilities, and automated security scanning with ZAP and custom scripts.

The complete QA skill for Claude Code — turn Claude into an expert QA engineer that picks the right test type, writes reliable Playwright, Cypress, and pytest tests, eliminates flaky tests, enforces coverage, and wires up CI. Claude Code QA testing done right.

Automatically generate comprehensive API test suites from OpenAPI specifications covering CRUD operations, error handling, authentication, pagination, and edge cases

SOAP web service testing including WSDL validation, XML schema testing, WS-Security, and SOAP fault handling verification.

Validate API responses against OpenAPI/Swagger specifications, JSON Schema definitions, and consumer-driven contracts to prevent breaking changes

End-to-end test automation using testRigor's plain English syntax for writing maintainable tests without coding, covering cross-browser testing, mobile testing, API validation, and integrations with CI/CD pipelines.

Effective test automation patterns with Cursor AI IDE including Composer for test suite generation, Cmd+K for inline test edits, Chat for test debugging, codebase-aware test generation, and rules configuration for testing conventions.

Java REST API testing with REST Assured including JSON schema validation

Automated detection of breaking API changes including response format changes, removed endpoints, type changes, and deprecation enforcement.

Enterprise-grade Playwright test automation framework using 8-layer architecture with Page Object Model, Module Pattern, custom fixtures, API testing layer, structured logging, data generators, multi-browser support, Docker, CI/CD pipelines, and custom HTML reporting.

Testing API versioning strategies including URL path, header, and query parameter versioning with backward compatibility validation.

Comprehensive SDET interview preparation covering coding challenges, system design for testing, automation framework design, CI/CD pipeline questions, testing strategy discussions, and behavioral interview patterns for QA engineering roles.

Generate consumer-driven contract tests using Pact framework to verify API provider-consumer compatibility and prevent integration breaking changes

Comprehensive testing patterns for Model Context Protocol servers including tool validation, transport testing, schema verification, and end-to-end MCP integration testing with stdio and SSE transports.

End-to-end type-safe API testing with tRPC covering router testing, middleware testing, subscription testing, and client-server integration testing patterns

Streaming API testing skill covering Server-Sent Events testing, chunked transfer encoding, gRPC streaming, real-time data validation, backpressure testing, connection resilience, and AI/LLM streaming response testing.

Effective patterns for using GitHub Copilot to generate, refactor, and maintain test code including prompt engineering for test generation, Copilot Chat for debugging, inline suggestions for assertions, and workspace context optimization.

Comprehensive test strategy design methodology covering risk-based testing, test pyramid optimization, coverage planning, environment strategy, data management, and test automation ROI analysis for enterprise and startup contexts.

gRPC service testing including protobuf validation, streaming tests, error handling, deadline testing, and load testing for gRPC endpoints.

Building test reporting dashboards with real-time execution metrics, trend analysis, flaky test detection, coverage visualization, and integration with Allure, ReportPortal, and custom dashboards using Grafana and Prometheus.

OpenAPI/Swagger specification validation and testing to ensure API implementations match their documented contracts with automated drift detection.

Consumer-driven contract testing with Pact and Pact Broker

Automated API testing using Postman collections with Newman CLI for CI/CD integration, environment management, and test reporting.

Systematic patterns for prompting AI coding agents to generate high-quality tests including prompt engineering for test creation, coverage-driven generation, mutation-aware testing, and review checklists for AI-generated test code.

Testing webhook implementations including delivery verification, retry logic, signature validation, idempotency, and failure handling patterns.

Testing API schema evolution patterns including additive changes, field deprecation, type widening, and backward-compatible migration strategies.

Expert-level Codeception testing skill for PHP applications. Covers acceptance, functional, and unit testing with the Actor pattern, BDD-style syntax, Page Objects, API testing, and database helpers.

Testing pagination implementations including cursor-based, offset-based, keyset pagination with edge cases, performance, and consistency verification.

Flask application testing with test client, fixture patterns, SQLAlchemy model testing, blueprint testing, and Flask-specific extension testing.

Automatically generating API tests from OpenAPI/Swagger specifications including request validation, response schema checking, and edge case generation.

Comprehensive RESTful API testing patterns covering HTTP methods, status codes, request/response validation, authentication, error handling, and contract testing.

Express.js API testing with supertest, middleware testing, route handler testing, error handling verification, and authentication testing.

API endpoint fuzzing for discovering unexpected behaviors, crashes, and security vulnerabilities through malformed requests, boundary values, and protocol violations.

NestJS application testing with @nestjs/testing, dependency injection mocking, e2e testing with supertest, guard testing, and pipe validation testing.