atototo/api-lab-mcp

API development

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api test mcp

概要

Transform Claude into your AI-powered API testing laboratory. Test, debug, and document APIs through natural conversation. Stop switching between tools. Stop writing repetitive test scripts. Start having conversations with your APIs. Traditional API testing tools require constant context switching, manual script writing, and repetitive workflows that slow down development. API Lab MCP integrates directly with Claude Desktop and Claude Code, allowing you to test APIs through natural language while you code. No more jumping between Postman, terminal, and your IDE.

README

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API Lab MCP 🧪

Transform Claude into your AI-powered API testing laboratory. Test, debug, and document APIs through natural conversation.

🌟 Why API Lab MCP?

Stop switching between tools. Stop writing repetitive test scripts. Start having conversations with your APIs.

The Problem: Traditional API testing tools require constant context switching, manual script writing, and repetitive workflows that slow down development.

The Solution: API Lab MCP integrates directly with Claude Desktop and Claude Code, allowing you to test APIs through natural language while you code. No more jumping between Postman, terminal, and your IDE.

What makes it different?

🤖 AI-First Design: Built specifically for Claude’s conversational interface
💬 Natural Language: Test APIs by describing what you want, not clicking through UIs
🔄 Zero Context Switching: Stay in your development flow
📚 Auto Documentation: Generate API docs from your test conversations
🎯 Smart Assertions: Claude understands your intent and creates appropriate tests

✨ Key Features

🔐 Universal Authentication - Bearer tokens, API keys, OAuth2, session cookies, and CSRF tokens
📊 Intelligent Response Analysis - Automatic validation of status codes, headers, and JSON paths
⚡ Real-time Performance Metrics - Response times, payload sizes, and Core Web Vitals
🎯 Conversational Testing - Test complex scenarios through natural dialogue
📋 Spec-based Test Generation - Auto-generate test suites from OpenAPI/Swagger docs
🔄 Batch Testing - Run multiple APIs in parallel or sequence
🧪 MCP Server Testing - Test other MCP servers’ tools and resources
🌍 Environment Management - Switch between dev, staging, and production seamlessly

🚀 Quick Start (30 seconds)

For Claude Code

# Install globally
npm install -g api-lab-mcp

# Add to Claude Code
claude mcp add api-lab-mcp api-lab-mcp

# Start testing!
# Tell Claude: "Test my API at localhost:3000"

For Claude Desktop

# Install via npm
npm install -g api-lab-mcp

# Then add to Claude Desktop config (see Installation section)

That’s it! You’re ready to test APIs with Claude.

📸 Live Demo with Claude Desktop

Watch API Lab MCP in action with Claude Desktop - testing real APIs through conversation:

Real Results from Claude Desktop

GitHub で README 全文を見る

インストール

npx -y api-lab-mcp

MCP 初心者？mcpskill.org のガイドから始めましょう →

設定

{
  "mcpServers": {
    "api-lab-mcp": {
      "command": "npx",
      "args": ["-y", "api-lab-mcp"]
    }
  }
}