Salesforce spent 2026 tearing down the wall between its platform and the browser. The headline move is Headless 360: an umbrella push, expanded again on August 19, 2026, that turns Salesforce's clouds into a set of APIs, MCP servers, and CLI commands that any coding agent or custom front end can call directly, without going through a page built in Salesforce's own UI. What actually shipped Headless 360 MCP Server (open beta) lets AI agents discover and invoke Salesforce capab