What it means
An MCP server sits between an AI assistant and a system such as a CRM, database or file store. It describes the tools it offers, such as "search contacts" or "create invoice", and runs them when the assistant asks. Some run on your own computer, others are hosted by the vendor.
Because MCP is a standard, one server can be used by many assistants, including Claude and others that support the protocol.
Why it matters for a business
MCP servers are how AI assistants get access to real business data and actions. Choosing trusted servers and giving them the least access they need is what makes that access safe.
A business example
Things to watch
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Prefer official servers from vendors.
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Review community servers before use.
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Start read-only and add actions carefully.
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Keep logs of tool calls.