llm-keys-ui 0.1: Secure API Key Management for Coding Agents
Originally published on Simon Willison's Weblog by Simon Willison

Summary & Key Takeaways
llm-keys-ui is a new plugin for the llm CLI tool. It addresses the challenge of securely configuring API keys for coding agents. The plugin provides a web interface to save and retrieve API keys. This avoids pasting sensitive keys directly into agent sessions or chat apps. It supports local network or Tailscale device IPs for access. Keys can be retrieved via llm keys get <provider> for use in shell commands.
Our Commentary
This is a clever solution to a very specific, yet common, security headache when working with LLM agents. I appreciate the focus on practical DX and security. It's a small tool, but it solves a real pain point for anyone juggling API keys across multiple machines and agent sessions. Simon Willison consistently delivers these thoughtful, focused utilities.