> For the complete documentation index, see [llms.txt](https://docs.altum.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.altum.ai/english/platform.md). # Platform Explanation about the Altum AI Platform ![Platform](https://1172273446-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Lw4gk5ARKsgVHFCdPZw%2Fuploads%2Fo46kpR8YGf3bR4NJiyZ0%2FPlatform.png?alt=media\&token=76b4b252-2b1c-41e2-aed3-32e66be64599) Prices are on Credits and pricing. The number of credits per API is in the [Cost Calculator](https://platform.altum.ai/abonnement?tab=calculator) on the platform. That is the single source of truth. ### How can I use Altum AI's APIs? Create an account via the registration page. On the Platform you pay with credits. Each API has a fixed credit value per call. 1 credit costs €0.05 excl. VAT. A call deducts that credit value from your balance, whether you use the interface or your own application. You can try the Platform with 1,000 credits for 30 days, with no obligation. See Credits and pricing. ### Does a lower credit price mean every call is cheaper? No. A price of €0.05 per credit does not mean that every call is cheaper than before. Heavier APIs use more credits. How many credits an API costs per call is in the [Cost Calculator](https://platform.altum.ai/abonnement?tab=calculator) on the platform. ### How does pay per use work? With pay per use you pay for the credits each call uses. Usage is tracked in the dashboard and billed monthly in arrears. For pay per use and standard prepaid, fair use is about 10,000 calls per day. ### How does a subscription work and what is the cancellation period? The platform activates Startup 5.000. The site price is €100 excl. VAT. Startup is still billed in calls, not credits, so customers can freely try all APIs. For Growth and Pro, the price depends on volume and which APIs. Contact us for specific pricing. Subscriptions run for one month and you can cancel at any time. If you cancel early, open pay per use costs are settled immediately. If you do not cancel, the subscription renews for one month. ### How can I increase the number of credits? Log in to the Platform and choose a subscription on the Subscriptions page. See Monthly subscriptions. ### What happens if I upgrade or downgrade the plan? When you upgrade, the prepaid subscription is charged immediately and the prepaid credits are available immediately. Prepaid credits left from the previous subscription expire, so use them before you upgrade. Open pay per use costs are settled immediately. When you downgrade, prepaid credits left on the subscription expire, so use them before you downgrade. Open pay per use costs are settled immediately. ### What is the shelf life of prepaid credits? Prepaid credits last one month from purchase. Unused credits are not carried over to the next month. ### How do I use the Transaction API? Kadaster Transaction sits outside the standard bundle and has its own subscription. How many credits a call costs is in the [Cost Calculator](https://platform.altum.ai/abonnement?tab=calculator) on the platform. Read the conditions here. ### How current is the number of remaining credits in the dashboard? The dashboard can lag by about 1 minute after an API call. ### What does it cost to use the platform? See Credits and pricing. The number of credits per API is in the [Cost Calculator](https://platform.altum.ai/abonnement?tab=calculator) on the platform. Subscription conditions are on Monthly subscriptions. ### How do I integrate an API into an application? Use the API key from your account in the Platform. Authenticate with the `x-api-key` header on api.altum.ai. The rest of this documentation describes each API. The account page is still linked from the Platform: [Account](https://mopsus.altum.ai/#/apikeys). ### How do I know if an API is operational? The [Status page](https://status.altum.ai/) shows the current availability of all services. ### How can I contact Altum AI for support? Send an email from the Support page or directly to . A chat function is also in the lower left corner of the pages. ### Is it possible to integrate the APIs without costing credits? Yes. Sandbox calls do not use credits. Read the Sandbox documentation. ### How can I cancel a subscription? You can cancel a subscription in the dashboard. Click the subscription under Subscription and press cancel. ![Cancel a subscription](https://1172273446-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-Lw4gk5ARKsgVHFCdPZw%2Fuploads%2F8Etema4Rv2maIXBv6dC6%2Fimage.png?alt=media\&token=c3dce30a-70e5-4dd0-9f31-b533ad3fbca8) --- # Agent Instructions This documentation is published with GitBook. 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