---title: Connectionsdescription: "A connection is a configured instance of an integration. One integration can have many connections."--- A **connection** is a configured instance of an [integration](/concepts/integrations).A single integration can have many connections: the same API authenticated for twodifferent accounts, say. A connection doesn't have to be authenticated: public APIs and public MCP servers can beconnected with no credentials. Executor runs tool calls in a sandbox, so the agent can never access the credentials.