Pricing built around API credits
WorldTides uses a simple credit model so you can request only the tide data your application needs: extremes, sampled heights, datums, and rendered plots.
High and low tides
A seven-day high/low tide prediction costs one credit for a location.
Sampled heights
Graph-ready water heights sampled every 30 minutes for seven days cost one additional credit.
Datums
Returning the full datum list costs one additional credit. Selecting one datum for heights or extremes does not add a credit.
Credit calculator
Use this calculator to estimate the cost of a typical API request before you build it into your workflow.
extremes&length=604800Individual Plan (yearly)
For individual use. Commonly used for apps that ask users to get their own API key.
| Yearly price | Credits |
|---|---|
| $3.99/year | 1,000 |
Mobile (monthly, pre-paid)
Each request is for a single end-user. They are allowed to cache their result and view it as many times as they like. Use subscriptions for a better price per credit and use pre-paid credits to cover traffic spikes.
Monthly subscriptions
| Monthly price | Credits |
|---|---|
| $4.99/month | 20,000 |
| $9.99/month | 50,000 |
| $17.99/month | 100,000 |
| $29.99/month | 200,000 |
| $59.99/month | 500,000 |
| $99.99/month | 1,000,000 |
| $159.00/month | 2,000,000 |
| $299.00/month | 5,000,000 |
| $499.00/month | 10,000,000 |
Prepaid credits
| Prepaid price | Credits |
|---|---|
| $9.99 | 20,000 |
| $19.99 | 50,000 |
| $34.99 | 100,000 |
| $59.99 | 200,000 |
| $124.99 | 500,000 |
| $199.00 | 1,000,000 |
Website (monthly)
Public webpages on one website, shared server-side caching, and unlimited viewers. The webpages must be accessible without a login. Website plans do not cover web apps that require a login or distribution to mobile apps. Displaying cached predictions uses no additional API credits.
| Monthly price | Credits |
|---|---|
| $7.49/month | 1,000 |
| $12.49/month | 2,000 |
| $24.99/month | 5,000 |
| $44.99/month | 10,000 |
| $74.99/month | 20,000 |
License
Website plans allow predictions to be cached and displayed to unlimited visitors on public webpages of one website, accessible without a login. Individual and Mobile plans retrieve predictions on behalf of an individual end user; each different user requires a separate prediction request.
You may cache a prediction for the individual user who requested it and display it to that same user more than once. You may also cache and share the station list, which is useful for maps, location search, and station proximity checks.
Please review the Terms of Service for the complete license language.
Payment options
We accept PayPal, Stripe, or direct deposit. Direct deposit is available by arrangement for larger or recurring accounts.
Start with free credits
Create an account to test real API responses with your own locations before choosing a paid credit package.


