28
Health
stale
42
Popularity
MCP server that exposes a V8 JavaScript runtime as a tool for AI agents like Claude and Cursor. Supports persistent heap snapshots via S3 or local filesystem, and is ready for integration with modern AI development environments.
43stars
8forks
Rust
0BSD
Updated May 10, 2026
Add to Claude Desktop
Paste this into your claude_desktop_config.json file:
{
"mcpServers": {
"js": {
"command": "npx",
"args": [
"-y",
"mcp-js"
]
}
}
}Config file location: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)
Installation
npx mcp-js
Maintenance Healthstale
Freshness15/40
Issue response3/30
Org backing5/20
Longevity5/10
› Updated this year
› Most issues unresolved
› Solo project
Server Info
Categorytools
LanguageRust
License0BSD
StatusACTIVE
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