API keys
A key is what your agent sends to drive this account. Create one, copy it once, give it to the agent with the docs.
Send the key as Authorization: Bearer <key>. Each key carries only the scopes you give it, and 600 requests an hour.
Connected apps
Chat apps that cannot hold a key sign in here instead: add the MCP server inside Claude or ChatGPT and the app appears below. Disconnect ends its access at once.