Terms of service

These terms govern use of the Human Design API operated by HumanDesign.AI LTD ("we", "us"), a company registered in England and Wales, company number 14696719, with its registered office at 128 City Road, London, EC1V 2NX. By requesting a key or calling the API you accept them. If you are agreeing on behalf of a company, you confirm you may bind it.

Your account and keys

You are responsible for everything done with your keys and for keeping them secure. Keys belong on your server. Do not ship them in a browser, a mobile binary, a public repository or anywhere a third party can read them. Tell us promptly if a key is exposed and we will issue a replacement.

One account, one integration. You may not share a key across separate businesses, sublicense it, or operate a proxy, wrapper or gateway that lets others reach the API through your key.

Fair use

Each plan carries a monthly allowance that resets on your billing date, and different operations consume different amounts of it. When the allowance is exhausted the API returns a quota error rather than continuing to bill you, so a loop in your code cannot generate an unexpected invoice.

Beyond the numeric allowance we ask for ordinary good behaviour: reasonable concurrency, retries with backoff rather than in a tight loop, and caching of results you will use more than once. A chart for a given birth moment never changes, so recalculating it repeatedly wastes your allowance and our capacity. We may rate limit, throttle or suspend a key that degrades the service for other customers, and we will tell you why.

What you may do with the output

You may display chart data returned by the API inside your own product, presented and styled however suits it, including under your own branding, and you do not need to credit us. You may cache and store results in your own systems for the operation of your product.

What you may not do

You may not reverse engineer, decompile, disassemble or otherwise attempt to derive the source code, calculation methods or internal structure of the API or any software we provide, except to the extent that restriction is unenforceable under applicable law.

You may not systematically extract, harvest or bulk download responses in order to reconstruct our reference libraries or build a competing chart calculation service or dataset. Calling the API to serve your own users is the point. Calling it to copy it is not.

You may not resell raw API access, remove or obscure security or rate limiting, probe or test the service for vulnerabilities without written permission, or use the API to build a product that competes directly with the Human Design API itself.

Ownership

We retain all rights in the API, its software, documentation, reference libraries and calculation methodology. These terms grant a limited, revocable, non-exclusive, non-transferable right to call the API and use its output as described above, and nothing more. You retain rights in your own product and in the data you supply.

Your users and their data

Where you send us birth details belonging to your users, you are responsible for collecting them lawfully and for having any consent your jurisdiction requires. We do not retain that input; see the privacy policy for what we do record.

Responsible use of Human Design information

API output is informational. It is not medical, psychological, legal or financial advice, it is not a diagnosis, and it is not a measurement of anything about a person. Do not use it, and do not build a product that uses it, to make or justify decisions about employment, insurance, credit, housing, healthcare or anything else where it could cause material harm. If your product presents this information publicly, say so somewhere your users will see it.

Availability

We work to keep the service reliable but offer no uptime guarantee, and you should build for the case where a call fails. Handle errors and missing results honestly rather than inventing chart fields when the service is unavailable. Endpoints, fields and limits may change, and we will give reasonable notice of anything that breaks an existing integration where it is practical to do so.

Suspension and termination

You may stop at any time by cancelling in your account; see the refund policy. We may suspend or terminate access for breach of these terms, non-payment, or use that threatens the service or other customers. Where the problem is fixable we will normally tell you and give you a chance to fix it first.

Warranties and liability

The API is provided as is. To the extent permitted by law we exclude implied warranties, including fitness for a particular purpose, and we do not warrant that output will be uninterrupted, error free or suitable for any specific use. Nothing here limits liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be limited.

Subject to that, our total liability arising from these terms is limited to the fees you paid us in the twelve months before the claim, and we are not liable for indirect or consequential loss, lost profits, or loss of data.

Changes

We may update these terms. Material changes will be notified by email to the address on your account or by notice on this site, and continued use after they take effect is acceptance. The date below is the current version.

Governing law

These terms are governed by the laws of England and Wales, and the courts of England and Wales have exclusive jurisdiction, without affecting any mandatory rights you have where you live.

Contact

Write to [email protected]. We answer in writing.