mcp_server_js

What is mcp_server_js?

mcp_server_js is an MCP server that exposes a single tool for executing JavaScript code. It is designed for developers who need to run JavaScript snippets within an MCP‑enabled application.

How to use mcp_server_js?

Configure the server in your MCP client using either the stdio transport (pointing to the server binary) or the SSE transport (running the server on a port and connecting via URL). Invoke the exposed tool by passing a source code string.

Key features of mcp_server_js

• Single tool js(source_code=…) for executing JavaScript
• Supports stdio transport for local integration
• Supports SSE transport for remote or network‑based use

Use cases of mcp_server_js

• Evaluate ad‑hoc JavaScript expressions in an MCP workflow
• Run small code snippets without leaving your MCP client

FAQ from mcp_server_js

What tool does mcp_server_js provide?

It provides one tool named js that accepts a source_code parameter containing JavaScript code.

How do I run mcp_server_js over SSE?

Start the server with ./mcp_server_js --port 8080 and configure your MCP client to connect to http://localhost:8080/sse.

Can I use mcp_server_js via stdio?

Yes. Add the server command to the mcpServers configuration with the path to the binary.

Does mcp_server_js require any runtime dependencies?

The README does not specify any runtime dependencies beyond the server binary itself.