How much does the developer API cost?
You pay per number, at the wholesale price plus a markup of 80 % that falls to 50 % with volume.
There is no subscription: you pay per number, from your normal balance. The developer price is the wholesale price plus a markup of 80 %, which falls to 70 % from 100 USD, 60 % from 500 USD and 50 % from 2,000 USD of developer spend in the last 30 days. It is never below 0.10 USD and never above the app price. Numbers without a code are refunded as usual. See Developer prices and volume tiers.
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