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mcp-js

🔧MCP Server

r33drichards/mcp-js

What it does

A Rust-based MCP server exposing a V8 JavaScript runtime as a tool for AI agents, with persistent heap snapshots via S3 or local filesystem.

localfile

Installation

Claude CLIAdd MCP server via Claude CLIAuto-generated from README. View full documentation on GitHub →

claude mcp add mcp-v8 -- mcp-v8 --directory-path /tmp/mcp-v8-heaps # stateful

Claude CLIAdd MCP server via Claude CLI

claude mcp add mcp-v8 -- mcp-v8 --stateless # stateless

Claude Desktop ConfigurationServer configuration (JSON)

{ "mcpServers": { "js": { "command": "mcp-v8", "args": ["--stateless"] } } }...

Last UpdatedFeb 27, 2026