MCP Developer Subagent
A specialized framework for Model Context Protocol (MCP) development featuring 8 Claude Code sub-agents, security hooks, and production-ready FastMCP server templates. Provides immediate MCP development assistance through markdown-driven agents with
What is MCP Developer Subagent?
MCP Developer Subagent is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to specialized framework for model context protocol (mcp) development featuring 8 claude code sub-agents, security hooks, and production-ready fastmcp server templates. provides immediate mcp development...
A specialized framework for Model Context Protocol (MCP) development featuring 8 Claude Code sub-agents, security hooks, and production-ready FastMCP server templates. Provides immediate MCP development assistance through markdown-driven agents with
This server falls under the Coding Agents category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- A specialized framework for Model Context Protocol (MCP) dev
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx mcp-developer-subagentConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use MCP Developer Subagent
MCP Developer Subagent is a specialized Python framework for accelerating MCP server development using 8 Claude Code sub-agents, each focused on a distinct aspect of the development lifecycle: orchestration, FastMCP implementation, protocol specification, security and authentication, performance optimization, deployment, troubleshooting, and context management. It includes production-ready FastMCP server templates and Claude Code security hooks, enabling developers to generate, review, and deploy MCP servers through AI-assisted workflows without starting from scratch.
Prerequisites
- Python 3.8 or higher installed
- An Anthropic API key (set as ANTHROPIC_API_KEY) for CLI validation and sub-agent features
- Claude Code installed (optional but required for sub-agent features)
- Git for cloning the repository
- pip for installing Python dependencies
Clone the repository
Clone the MCP Developer SubAgent repository from GitHub.
git clone https://github.com/gensecaihq/MCP-Developer-SubAgent.git
cd MCP-Developer-SubAgentSet your Anthropic API key
Export your Anthropic API key as an environment variable. This is needed for the CLI validation tool and sub-agent features.
# macOS/Linux
export ANTHROPIC_API_KEY=sk-ant-your-key-here
# Windows PowerShell
$env:ANTHROPIC_API_KEY="sk-ant-your-key-here"
# Windows Command Prompt
set ANTHROPIC_API_KEY=sk-ant-your-key-hereValidate your setup
Run the built-in setup validation to confirm all dependencies and configurations are correct.
python3 claude_code_sdk/cli_simple.py validate-setupInstall the package
Install in editable mode. Use the [auth] extra if you need authentication support in generated servers.
pip install -e .
# or with optional auth support:
pip install -e .[auth]Add the MCP server to your client config
Register the server with Claude Desktop or Claude Code to access the sub-agent capabilities through your AI client.
{
"mcpServers": {
"mcp-developer-subagent": {
"command": "python3",
"args": ["/path/to/MCP-Developer-SubAgent/main.py"],
"env": {
"ANTHROPIC_API_KEY": "sk-ant-your-key-here"
}
}
}
}Generate a FastMCP server using the sub-agents
Use the orchestrator to request a new MCP server. Provide a JSON task describing the tools, transport, and auth requirements.
python3 claude_code_sdk/cli_simple.py validate-setup
# Then ask Claude: "Generate a FastMCP server with a weather tool and API key authentication"MCP Developer Subagent Examples
Client configuration
Claude Desktop config for the MCP Developer SubAgent, using Python to run the server directly.
{
"mcpServers": {
"mcp-developer-subagent": {
"command": "python3",
"args": ["/path/to/MCP-Developer-SubAgent/main.py"],
"env": {
"ANTHROPIC_API_KEY": "sk-ant-your-key-here"
}
}
}
}Prompts to try
Example prompts to use once the MCP Developer SubAgent is connected in Claude.
- "Generate a FastMCP server that exposes a tool to query a PostgreSQL database"
- "Review my MCP server code for security vulnerabilities using the security sub-agent"
- "Create a production-ready FastMCP template with JWT authentication and rate limiting"
- "Debug why my MCP tool is returning malformed responses"
- "Optimize my MCP server for high-throughput concurrent tool calls"Troubleshooting MCP Developer Subagent
validate-setup reports missing dependencies
Run 'pip install -e .' from the project root to install all 12 required Python dependencies. Check INSTALL.md for platform-specific guidance on macOS, Windows, and Linux if pip install fails.
Sub-agent features are unavailable (Claude Code not detected)
Install Claude Code following the official Anthropic instructions and ensure the 'claude' command is available in your PATH. Sub-agent delegation requires Claude Code to be installed and authenticated.
ANTHROPIC_API_KEY is not recognized
Make sure the environment variable is exported in your shell session before running any commands. On macOS/Linux, add 'export ANTHROPIC_API_KEY=sk-ant-...' to your ~/.zshrc or ~/.bashrc and restart your terminal.
Frequently Asked Questions about MCP Developer Subagent
What is MCP Developer Subagent?
MCP Developer Subagent is a Model Context Protocol (MCP) server that specialized framework for model context protocol (mcp) development featuring 8 claude code sub-agents, security hooks, and production-ready fastmcp server templates. provides immediate mcp development assistance through markdown-driven agents with It connects AI assistants to external tools and data sources through a standardized interface.
How do I install MCP Developer Subagent?
Follow the installation instructions on the MCP Developer Subagent GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with MCP Developer Subagent?
MCP Developer Subagent works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is MCP Developer Subagent free to use?
Yes, MCP Developer Subagent is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
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Set Up MCP Developer Subagent in Your Editor
Choose your AI client for step-by-step setup instructions.
Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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