Square
FreeLiveLast verified 24 Sept 2026
Take payments, manage orders, inventory and customers for a Square seller account via REST API.
Example request
curl https://connect.squareup.com/v2/locations -H 'Authorization: Bearer $API_KEY' -H 'Square-Version: 2026-09-16'
Free tier, in plain English
Calling the API is free with no monthly fee; Square instead charges a per-transaction processing fee (from 2.6%+15c) on payments you actually take.
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