MCP (Model Context Protocol) is an open standard that lets AI assistants use external tools. An MCP server describes what it can do in a format any compatible assistant understands, so Claude or another agent can discover the tools and call them directly, without anyone writing integration code.
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How MCP works
A service runs an MCP server that exposes its capabilities as named tools, for example "create a publish job" or "list connected accounts". An AI assistant connects to the server, reads the tool list, and calls whichever tool the task needs. The protocol handles the plumbing; the API behind the server does the actual work.
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