An agent becomes useful when it can do things: look up an order, file a ticket, update a record. MCP is a standard way to give it those abilities.
What you need
- Tool calling and MCP and the manifest on upfyn.com.
The shape of it
Describe the tools
Each tool has a name, what it does, and the inputs it takes.
Let the agent choose
The agent decides which tool to call and with what, and you run it.
Loop until done
Feed the result back and let the agent continue — see The tool loop.
This is taught in depth in Month 2 of AI Fluency — "API Wrappers, Tools, MCP".