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Register for free WorldTides API credits.

New accounts receive 100 free credits for one month, so you can test real tide predictions, datums, and API responses before choosing a paid plan.

100 free credits Test real requests against locations your application cares about.
Developer-ready API Request tide extremes, sampled heights, datums, time zones, and forecast graphics.
Usage visibility Track credit usage from your account and receive low-balance notifications.
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