Your keys
Create a key, watch what it spends, and put a card behind it when the trial runs out. No one needs to approve anything.
Using a key
curl https://pricemend.com/v1/deadline?store=best_buy&purchased=2026-11-01 \
-H "Authorization: Bearer pm_live_…"
The API reference lists every endpoint. The MCP server needs no key at all.
Need the whole corpus as a file?
A one-off dataset licence is the one thing not sold from this page, because it is a contract rather than a subscription. Email api@pricemend.com and say what you are building.