Terms for using WorldTides data, APIs, and forecasts.
These terms apply to WorldTides websites, APIs, forecast graphics, tide stations, datums, and related data products. They supplement the general Brainware LLC terms of service and privacy policy.
Last updated
July 12, 2026
Applies to
WorldTides.info, WorldTides.com, API access, forecast images, tide stations, datums, and account features.
Provider
WorldTides is operated by Brainware LLC, California, USA.
These terms work with the general Brainware terms
Use of WorldTides is governed by the Brainware LLC Terms of Service, the Privacy Policy, and the additional WorldTides provisions on this page. If there is a conflict for WorldTides data or API use, these WorldTides provisions control for that specific use.
By using WorldTides, creating an account, making API requests, downloading forecast graphics, or integrating WorldTides data into a product, you agree to these terms.
Copyright notices must remain visible to end users
The copyright field embedded in API responses must be reproduced in any website, app, report, product, or service using the returned data. This message may vary depending on the original data source.
Alternatively, the following notice may be used when the link to www.worldtides.info/copyright is accessible and clickable by the end user:
Licensed for use of individual spatial coordinates by an end user.
NO GUARANTEES ARE MADE ABOUT THE CORRECTNESS OF THIS TIDAL DATA.
You may not use this data if anyone or anything could come to harm as a result of using it, including navigation or safety-critical operations.
Tidal data is obtained from various sources and is covered in part or whole by various copyrights. For details see: www.worldtides.info/copyright
Permitted API use
You may use WorldTides to retrieve tide predictions, water levels, tide stations, datums, time zones, and related API outputs for individual spatial coordinates on behalf of end users.
You may cache results for performance and reliability when doing so is reasonable for your application and does not replace the need for an active license or account.
Restricted use
You may not resell WorldTides data as a standalone dataset, bulk database, or competing tide API without written permission. You may not remove attribution, conceal source notices, scrape the service, bypass usage limits, or share API keys outside your organization.
WorldTides is not for navigation or safety-critical decisions
Tide predictions are provided without guarantees of correctness, completeness, timeliness, or fitness for a particular purpose. Predictions may differ from actual water levels because of weather, river flow, storm surge, seismic activity, sensor errors, source-data gaps, datum differences, and other local conditions.
Do not use WorldTides as the only source for navigation, emergency response, life-safety decisions, environmental protection, or any use where people, property, vessels, infrastructure, or the environment could be harmed.
You are responsible for your account and API credentials
You are responsible for activity under your account, including API calls made with your keys. Keep credentials secure, rotate exposed keys promptly, and contact us if you believe your account has been compromised.
We may suspend or limit access when usage appears abusive, fraudulent, technically harmful, unpaid, or inconsistent with these terms.
You may delete your account from the settings page. Deletion permanently disables account access and the associated API key, so applications using that key will no longer receive data. We retain the account email address to prevent future registration and repeated claims or misuse of new-account credits, as described in our Privacy Policy.
Paid services, credits, and subscriptions
Paid WorldTides access may be offered as prepaid credits, subscriptions, custom agreements, or other account plans. Brainware LLC tracks API requests and associated fees according to the active account plan.
- Prepaid credits are consumed as qualifying API calls are made and may expire according to the plan or purchase terms shown at checkout.
- Subscriptions provide a monthly request allowance or agreed service level and may renew automatically until cancelled.
- Payment may be handled through PayPal, Stripe, Coinbase/crypto, or direct deposit. Your use of a payment provider may also be governed by that provider's terms.
- Direct deposit is available by arrangement for larger, recurring, or enterprise accounts.
WorldTides combines multiple official and research data sources
WorldTides aggregates and analyzes data from government hydrographic offices, oceanographic research institutes, universities, satellite products, and other source providers. Source availability, licensing, coverage, update frequency, and local quality can vary by region.
We may add, remove, replace, reprocess, or correct data sources at any time to improve coverage, comply with licensing obligations, or maintain service quality.
Terms and service availability may change
We may update these WorldTides terms as the product, data sources, payment options, or licensing requirements change. Continued use of WorldTides after an update means you accept the updated terms.
Questions about licensing, attribution, enterprise use, or custom agreements can be sent through the contact page.
