What is javascript?
javascript is a MCP server by reflagcom that manage Reflag feature flags from chat in your IDE. It is listed under Developer tools and has 25 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | reflagcom |
| Repository | reflagcom/javascript |
| Popularity | 25 GitHub stars |
| Category | Developer tools |
| Security | Review before installing (76/100) |
| Rank | #1,179 of 4,418 MCP servers; #287 in Developer tools |
| License | MIT |
| Last commit | 2026-10-15 |
| Runs | Cloud service |
| Language | TypeScript |
Is javascript safe to install?
javascript scores 76/100 on the MCPMods security check: Review before installing. Things to review: sends your data to a cloud service; can take actions such as send, write or deploy. It passed 4 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Published by the service itself | Pass |
| Sends your data to a cloud service | Review |
| No credentials mentioned | Pass |
| Can take actions such as send, write or deploy | Review |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install javascript?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/reflagcom/javascript/tree/main/packages/cli#model-context-protocol
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add javascript -- <command from README> claude mcp add --transport http javascript <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs javascript for you:
Add the "javascript" MCP server from https://github.com/reflagcom/javascript/tree/main/packages/cli#model-context-protocol to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.