offprompt

Lets an assistant request API keys from the user through a browser page and save them into a local .env file, without the model seeing the values.

What it does

This local MCP server opens a browser page where the human enters API keys, then writes those keys into a .env file on the user's machine. According to the registry description, the model only sees the key names, not the secret values. It is distributed as the npm package offprompt and runs over stdio.

When to use it

Useful when an assistant needs credentials for another tool or service and you want to supply them yourself rather than paste secrets into the chat. It fits local, desktop-based workflows where a .env file is the expected place for configuration.

Requirements

Runs as a local process over stdio, installed from the npm package offprompt, so Node.js and npm are needed. It is desktop-only and not available as a web executable. No authentication, environment variables, or headers are declared in the manifest.