Effective date: November 13, 2026.
This Data license is part of the GolfAPI.dev Terms of service. "Catalog data" means any data you receive from GolfAPI.dev, including values, identifiers, slugs, structure and the catalog as a compilation.
Ownership
Arc Gnomon LLC ("Arc Gnomon", "we", "us") owns the GolfAPI.dev catalog as a compilation, including its selection, coordination, arrangement, identifiers and structure. Catalog data is licensed, not sold. All rights not expressly granted in this license are reserved.
Your rights to use catalog data come only from this license. Its restrictions apply to all catalog data you receive from GolfAPI.dev, whether or not an individual value is protected by copyright or another law.
Pro application license
While your account has an active Pro subscription, or an Enterprise agreement signed by Arc Gnomon, and complies with the Terms, Arc Gnomon grants it a limited, nonexclusive, non-transferable, non-sublicensable and revocable license to retrieve catalog data within your plan's entitlements and limits, and to use it in your own applications, websites and internal tools. This includes commercial applications and displaying catalog data to your end users as part of functionality your application provides.
Hobby personal license
While your account has an active Hobby subscription and complies with the Terms, Arc Gnomon grants it a limited, nonexclusive, non-transferable, non-sublicensable and revocable license to retrieve catalog data within your plan's entitlements and limits for personal and non-commercial use. Private prototypes and internal evaluation before a launch are allowed. Using catalog data in a product or service you sell, or one that earns revenue, needs Pro.
Your contractors may use catalog data on your behalf and only for your benefit. You are responsible for their compliance with this license.
Free license
The Free plan includes sandbox keys only. Free access grants a limited, nonexclusive, non-transferable, non-sublicensable and revocable license to use the sandbox sample to test GolfAPI.dev, to develop an integration, and for your own personal and non-commercial use, such as asking an AI assistant about the clubs in the sample. It does not grant access to the production catalog, or a right to display catalog data publicly, publish it or distribute it. Using catalog data in anything you publish or sell, or that earns revenue, needs Pro.
Storage and caching
During your paid subscription, you may privately store and cache entitled API responses for your applications, including an internal copy of the catalog built through requests within your plan's limits. Keep that copy access-controlled. Do not make it available for download or access as a standalone dataset. Caching does not grant extra resources or views, or a right to bypass request limits.
Catalog values change between builds. Use conditional requests and your application's refresh process to keep displayed information current. A cached response is a copy of a published build, not a statement that the information is still current.
End-user display
You may display the catalog data reasonably needed for the feature an end user is using, such as the specifications of clubs the user views, searches, compares or buys. Ordinary display does not give an end user any right to extract or redistribute catalog data. Keep GolfAPI.dev credentials on your server.
Restrictions
You may not, and may not permit anyone else to:
- sell, license, sublicense, rent or distribute catalog data as a dataset, or include it in a data product provided to others;
- create a standalone catalog mirror, public dump, bulk export or substitute catalog API, including through a proxy or export feature whose purpose or effect is to redistribute the catalog;
- use catalog data to train or fine-tune a machine learning model, or to create datasets, embeddings or model outputs that substitute for the catalog outside your application. Supplying catalog data to a model inside your own application to answer an end user's request is display under this license;
- use catalog data to build or improve a product that competes with the GolfAPI.dev catalog or API;
- extract catalog data beyond your plan's limits, combine accounts to increase limits or scrape golfapi.dev;
- present a launch price as a current price, a retailer's price or an offer; or
- use the GolfAPI.dev name or marks other than to state accurately that your application uses GolfAPI.dev data, or in a way that implies endorsement by Arc Gnomon or a manufacturer.
Resale, bulk redistribution and export delivery require a separate written agreement signed by Arc Gnomon. Redistribution and display after cancellation are available only under a written Enterprise agreement. Contact hello@golfapi.dev to discuss them. No bulk export product is included in a subscription.
Accuracy and reliance
Catalog data is provided as is, under the disclaimers and limitation of liability in the Terms. Coverage and individual specifications are incomplete and may contain errors. A missing value is unknown, not zero or false. A launch price (intro_price) is the US MSRP stated at the club's launch; it is historical and does not describe a current price. You are responsible for checking catalog data before you rely on it for purchasing, fitting, pricing displays or statements to consumers.
Manufacturer and third-party materials
This license does not transfer ownership of manufacturer names, trademarks, images or other third-party materials, or imply endorsement by a manufacturer. Manufacturer names may be used to identify the clubs described.
When paid access ends
Cancellation leaves this license active through the end of the paid period. Within 30 days after paid access ends, stop using and displaying catalog data and delete it from your production systems, caches, data stores and archives. A new subscription is required to resume use.
These exceptions apply:
- Customer transaction records, such as the club named in a completed order, may remain where needed to preserve that transaction's history. This does not permit keeping a reusable catalog or continuing to serve catalog information.
- Copies in routine backups may remain until the backups are overwritten in their normal rotation, and no later than 90 days after paid access ends. Backup copies may not be accessed, queried or restored for any purpose other than disaster recovery of unrelated data.
- Records you must keep under a legal retention duty may remain for that duty's duration and only for that purpose.
Within 10 business days of our written request, certify in writing that you have complied with this section.
Compliance information
During your subscription and for 12 months after it ends, you will provide information reasonably needed to confirm your compliance with this license, such as a description of where catalog data is stored and how it is displayed, within 10 business days of our written request. We will not make a routine request more than once in any 12-month period. We may request more when we have a reasonable basis to believe this license has been breached.
Breach and remedies
We may suspend or revoke this license immediately if you breach it. A breach of the restrictions or of the duties when paid access ends would cause Arc Gnomon irreparable harm for which money damages are not an adequate remedy. Arc Gnomon may seek injunctive relief without posting a bond, in addition to any other remedy. For any use beyond your plan's entitlements or limits, you will also pay fees at our then-current list prices for the plan that would have covered that use.
The ownership, restrictions, accuracy and reliance, end-of-access, compliance information and remedies sections survive the end of your subscription.