CUGA
CUGA is an open-source generalist agent harness for the enterprise, supporting complex task execution on web and APIs, OpenAPI/MCP integrations, composable architecture, reasoning modes, and policy-aware features.
What is CUGA?
CUGA is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to cuga is an open-source generalist agent harness for the enterprise, supporting complex task execution on web and apis, openapi/mcp integrations, composable architecture, reasoning modes, and policy-aw...
CUGA is an open-source generalist agent harness for the enterprise, supporting complex task execution on web and APIs, OpenAPI/MCP integrations, composable architecture, reasoning modes, and policy-aware features.
This server falls under the Coding Agents category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- CUGA is an open-source generalist agent harness for the ente
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx cuga-agentConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use CUGA
CUGA is an open-source enterprise agent harness that enables complex task execution across web services and APIs with OpenAPI and MCP integrations. Connecting CUGA to Claude gives you a policy-aware, composable agent framework with built-in guardrails, allowing you to deploy production-grade AI agents that handle sophisticated workflows while maintaining security and architectural control.
Prerequisites
- Node.js 16+ installed
- An MCP client such as Claude Desktop or Cursor
- Access to the CUGA repository for manual setup if needed
Install CUGA Agent
Use npx to install and run the CUGA Agent MCP server directly.
npx cuga-agentAdd CUGA to your MCP client configuration
Edit your MCP client's config file to include the CUGA Agent server. This enables your AI client to communicate with the agent harness.
{
"mcpServers": {
"cuga-agent": {
"command": "npx",
"args": ["cuga-agent"]
}
}
}Configure OpenAPI and MCP integrations
Review the CUGA repository README to configure OpenAPI endpoints and other MCP servers you want the agent to access.
git clone https://github.com/cuga-project/cuga-agent
cd cuga-agent
cat README.mdSet up policy and guardrail rules
Configure policies in CUGA's configuration to define which operations the agent can perform and security constraints.
# Check CUGA documentation for policy configuration files
# Policies define what the agent can and cannot doRestart your MCP client
After updating the configuration, restart Claude Desktop or Cursor to load the CUGA Agent server.
Test the agent with complex tasks
Ask your AI assistant to execute multi-step workflows using the CUGA Agent. The agent will handle API calls, OpenAPI operations, and tool composition.
CUGA Examples
MCP Configuration
Add CUGA Agent to your MCP client configuration file.
{
"mcpServers": {
"cuga-agent": {
"command": "npx",
"args": ["cuga-agent"]
}
}
}Prompts to try
Example prompts for using CUGA Agent with Claude.
- Execute a multi-step workflow that fetches data from an API, transforms it, and stores it in a database
- Create a policy-aware agent that can read files but never delete sensitive configuration files
- Use OpenAPI integrations to orchestrate operations across multiple web services with automatic error handlingTroubleshooting CUGA
CUGA Agent fails to start
Ensure Node.js 16+ is installed and working. Run 'npx cuga-agent' directly in your terminal to check for errors. Check the CUGA repository for version compatibility and system requirements.
Agent cannot access configured APIs
Verify that OpenAPI endpoints are correctly configured in your CUGA setup. Check network connectivity and API credentials. Review policy rules to ensure the agent has permission to access the APIs.
MCP server not visible in client
Confirm the configuration file syntax is valid JSON. Restart your MCP client completely after updating the configuration. Check logs for connection errors.
Frequently Asked Questions about CUGA
What is CUGA?
CUGA is a Model Context Protocol (MCP) server that cuga is an open-source generalist agent harness for the enterprise, supporting complex task execution on web and apis, openapi/mcp integrations, composable architecture, reasoning modes, and policy-aware features. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install CUGA?
Follow the installation instructions on the CUGA GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with CUGA?
CUGA works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is CUGA free to use?
Yes, CUGA is open source and available under the NOASSERTION license. You can use it freely in both personal and commercial projects.
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Set Up CUGA 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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