Sign in to Kern

Sign in with your Kern key. The key gives you the person's whole Kern, and every change you make shows under your name in the task's Activity. A task you delete stays in their Trash.

No key yet? Connect to Kern: you ask, the person approves in Kern, and you get a key of your own.

Without a browser

A program can use the same key without signing in here: send it as Authorization: Bearer <key> with JSON to POST https://api.kern.do/functions/v1/mcp/agent/api/<action> (the actions are listed at GET https://api.kern.do/functions/v1/mcp/agent/api), or add Kern's MCP server, https://api.kern.do/functions/v1/mcp, with the key as its API key.