Can I use this for CI/CD automation?

Yes, it includes specific strategies and configuration examples for Newman and GitHub Actions to automate your API test suites in build pipelines.

What testing frameworks are supported?

The skill includes detailed implementation examples for Pytest (Python), Jest (JavaScript/TypeScript), and Apollo Client for GraphQL.

How does this skill integrate with Postman?

It provides configuration and command patterns for the Postman MCP server, allowing Claude to run collections, use environments, and parse results directly.

Does it support contract testing?

Yes, it provides implementations for OpenAPI specification validation and consumer-driven contract testing using the Pact framework.

What types of tests can I build with this skill?

You can construct a complete testing pyramid, including unit tests for business logic, integration tests for dependencies, and E2E workflow tests.

API Testing Mastery

Name: API Testing Mastery
Author: karchtho

bykarchtho

0•

Security & Testing

Implements comprehensive API testing strategies, automation workflows, and Postman MCP integrations for reliable backend services.

The API Testing skill equips Claude with the expertise to design and implement robust testing infrastructures, covering everything from unit and integration tests to complex end-to-end workflows. It provides deep integration patterns for Postman and Newman via the Model Context Protocol (MCP), enabling automated execution of collections directly within the development environment. Whether you are validating GraphQL queries, performing contract testing with Pact, or securing endpoints with specialized auth tests, this skill ensures your APIs meet high standards for reliability, security, and performance throughout the CI/CD lifecycle.

Key Features

01Framework-specific testing patterns for Pytest and Jest

02Contract testing and OpenAPI specification validation

03Comprehensive GraphQL query and mutation testing templates

040 GitHub stars

05Automated Postman collection execution via MCP integration

06End-to-end testing strategies using Newman for CI/CD pipelines

Use Cases

01Implementing contract testing to ensure consumer-provider compatibility

02Integrating Postman collections into Claude Code for interactive test execution

03Setting up automated API testing infrastructure for new backend services

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add karchtho/my-claude-marketplace api-testing

For use in Claude.ai and ChatGPT

Download Skill