Shippo is a shipping API: rates, labels, and tracking. It is the pipe when the brand's own software buys the label.
The label, the rate, the carrier, and tracking.
They attach to the order so margin can see the label cost.
Tracking can be written back to the channel. Buying the label stays inside the shipping rule the brand already set.
Whether Shippo is the label pipe, which carriers are on, and whether label cost belongs in the margin question.
An API is the door the system opens for orders, stock, and listings. An MCP server is a tool surface the AI can call, with the same guardrails. The call names who holds the login, which objects are read, and which writes wait for a person.
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