Mcp Server Js

What is Mcp Server Js?

Mcp Server Js is a Model Context Protocol server that enables AI platforms to interact with YepCode's infrastructure. It allows AI assistants to run LLM-generated scripts and turn YepCode processes into dynamic tools, defined with JSON Schema parameters and implemented in Python or Node.js.

How to use Mcp Server Js?

Requires Node.js 18+ or Docker and a YepCode API token. Configure your AI client (e.g., Cursor, Claude Desktop) with the command npx -y @yepcode/mcp-server and the YEPCODE_API_TOKEN environment variable. Alternatively, use Docker with docker run. The hosted MCP server at https://cloud.yepcode.io/mcp requires no local installation.

Key features of Mcp Server Js

• Expose YepCode processes as MCP tools with JSON Schema parameters
• Execute code securely in YepCode’s isolated environment via run_code
• Manage environment variables, storage files, and processes
• Polyglot tool implementations in Python or Node.js in one server
• Control which tools are enabled via YEPCODE_MCP_TOOLS (tags and categories)
• Enterprise-grade security with OAuth, API tokens, or workspace credentials

Use cases of Mcp Server Js

• AI assistants executing LLM-generated code in a secure sandbox
• Managing YepCode processes, schedules, variables, and storage through AI
• Creating personalized AI tools by tagging custom processes as mcp-tool
• Building a dynamic MCP tools server that mixes multiple programming languages

FAQ from Mcp Server Js

What tools does Mcp Server Js provide?

Built-in tools include run_code for arbitrary code execution, set_env_var and remove_env_var for environment variables, and storage tools (list_files, upload_file, download_file, delete_file). Additionally, tagged YepCode processes become individual MCP tools.

How do I expose my own YepCode processes as MCP tools?

Tag your processes (e.g., mcp-tool, core) and set YEPCODE_MCP_TOOLS to a comma-separated list of those tags. Each tagged process will appear as a separate tool named by its slug.

What are the runtime requirements?

Node.js version 18 or higher (for NPX) or Docker. You must have a YepCode account and an API token stored in the YEPCODE_API_TOKEN environment variable.

Can I skip the run_code cleanup or coding rules?

Yes. Set the YEPCODE_MCP_OPTIONS environment variable to runCodeCleanup to keep source code after execution, or skipCodingRules to exclude included coding rules from the tool schema. Combine options as a comma-separated list.

How do I debug the MCP server?

Since MCP servers communicate over stdio, use the MCP Inspector by running npm run inspector locally. This provides a browser-based debugging interface.