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MCP REST API Tester

Source

A TypeScript-based MCP server that enables testing of REST APIs through Cline. This tool allows you to test and interact with any REST API endpoints directly from your development environment.

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Overview

MCP REST API Tester is a TypeScript-based tool that allows developers to test and interact with REST API endpoints directly from their development environment using Cline.

To use the MCP REST API Tester, install it via Smithery or npm, configure Cline with appropriate instructions, and run tests on your API endpoints.

  • Supports various HTTP methods (GET, POST, PUT, DELETE) - Handles multiple authentication methods (Basic, Bearer, API Key) - Provides detailed response information - Configurable SSL verification options - Automatic endpoint normalization
  1. Testing specific API endpoints during development
  2. Debugging API responses to ensure functionality
  3. Validating API request/response formats dynamically

Add to your AI client

Use these steps to connect MCP REST API Tester in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "mcp-rest-api-dkmaker": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "mcp-rest-api-dkmaker": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "mcp-rest-api-dkmaker": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "mcp-rest-api-dkmaker": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "mcp-rest-api-dkmaker": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "mcp-rest-api-dkmaker": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-mcp-rest-api-dkmaker"
      ]
    }
  }
}

FAQ

What authentication methods does it support?

The tool supports Basic Authentication, Bearer Token, and API Key.

Can I test local APIs?

Yes, you can use it to test local development servers as well.

How do I handle sensitive data?

Proper configurations are provided to handle sensitive data securely.

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