MCP is becoming the default answer to every enterprise-agent architecture question. Access internal data? MCP. Call company APIs? MCP. Two agents need to communicate? MCP. Build the internal AI platform? Put an MCP server in front of everything.
An MCP server is not an AI platform.
It does not decide which source is authoritative. It does not preserve business transactions. It does not establish whether an employee may authorize a payment. It does not execute a process that waits three days for human approval. It does not determine whether an agent selected the right tool or produced the correct outcome.
MCP standardizes one boundary: the connection between an AI application and a capability. An enterprise agent platform must handle several others.
Who built what, and why it matters
