MCP, the Model Context Protocol, is an open standard that lets an AI assistant connect to outside tools and services in one consistent way. A service speaks MCP once and works with any assistant that also speaks it, instead of a separate integration for every pairing.
For a Birta user, MCP is the channel the connected agent uses to actually publish a site: list projects, upload files, and roll back a version, all without a repository or a build pipeline in the middle.
For the host, client and server pieces, the tools/resources/prompts model, and what changes when you want a website specifically, see what MCP is and why it matters for publishing.