MCP HTTP Client Server

A powerful Model Context Protocol (MCP) server for making HTTP requests, GraphQL queries, and TCP/Telnet connections from AI assistants. Inspired by Postman but designed for AI-native workflows with enhanced response formatting, intelligent caching, and multiple content type support.

Why Use This?

• Seamlessly integrates with AI assistants like Claude

• 13.7x faster with intelligent LRU caching

• Auto-formatted JSON, status emojis, performance metrics

• JSON, form-data, URL-encoded - all supported

• very request shows response time

• atural language commands, no complex setup

Related MCP server: MCP API Server

Installation

Choose your preferred installation method:

Option 1: npm (Recommended for easy setup)

npm install -g @mcp/http-client

Option 2: Homebrew (macOS/Linux)

brew tap ferPrieto/mcp-http-client
brew install mcp-http-client

Option 3: GitHub Packages (for Kotlin/JVM projects)

Add the repository and dependency to your build.gradle.kts:

repositories {
    maven {
        url = uri("https://maven.pkg.github.com/ferPrieto/MCP-Http-Client")
        credentials {
            username = project.findProperty("gpr.user") as String? ?: System.getenv("GITHUB_ACTOR")
            password = project.findProperty("gpr.key") as String? ?: System.getenv("GITHUB_TOKEN")
        }
    }
}

dependencies {
    implementation("ferprieto.mcp:httpclient:1.0.0")
}

Note: GitHub Packages requires authentication. Generate a Personal Access Token with read:packages scope.

Option 4: Build from Source

git clone https://github.com/ferPrieto/MCP-Http-Client.git
cd MCP-Http-Client
./gradlew clean build

This generates build/libs/mcp-http-client-all.jar.

Configuration

Add to your MCP client configuration file:

• Cursor: ~/.cursor/mcp.json

• Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json

If installed via npm:

{
  "mcpServers": {
    "http-client": {
      "command": "npx",
      "args": ["@mcp/http-client"]
    }
  }
}

If installed via Homebrew:

{
  "mcpServers": {
    "http-client": {
      "command": "mcp-http-client"
    }
  }
}

If using JAR directly:

{
  "mcpServers": {
    "http-client": {
      "command": "java",
      "args": ["-jar", "/path/to/mcp-http-client-all.jar"]
    }
  }
}

Comparison with Postman

Advanced Features

Content-Type Auto-Detection

The server automatically:

• Detects JSON responses and pretty-prints them

• Sets appropriate Content-Type headers based on bodyType

• Handles form-data with proper multipart boundaries

• URL-encodes form parameters automatically

Performance Metrics

Every request automatically tracks:

• Total request duration

• Response size

• Status codes

• Timing information

Roadmap

Future features planned for upcoming releases:

• Collections: Save and organize API requests (like Postman collections)

• Environments: Manage variables across different environments (Dev, Staging, Production)

• Authentication Helpers: Built-in support for Basic Auth, Bearer Token, API Key, OAuth2

• Request Chaining: Use response values in subsequent requests with variable substitution

• Postman Import: Import existing Postman collections for easy migration

License

MIT License

Made with ❤️ for the AI-native development workflow. Simpler than Postman, faster than manual curl commands, perfect for AI assistants!