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We built a checkout so you don’t have to

Launch a branded, conversion-optimized signup for the German energy market. Our hosted checkout handles address validation, supplier search, IBAN, plausibility checks, and accessibility. Customers land on a per-plan subdomain derived from plans.slug, fill out the form, and get redirected back to you once Nomos creates the subscription.
Hosted checkout page with plan summary on the left and signup form on the right

Example: a plan with slug lumio is reachable at lumio.checkout.energy, themed to your organization

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Pre-fill query parameters

Pass through anything you already know about the customer and the form arrives pre-filled.
https://lumio.checkout.energy/?zip=10115&usage=3500

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Redirect after submission

By default, Nomos shows a branded confirmation page once the form is submitted.
Confirmation screen reading 'Erfolgreich abgeschlossen' with a three-step list of what happens next

Default confirmation page, themed to your organization

To send the customer somewhere else (a thank-you page, your customer portal, your post-purchase flow), set plans.redirect_url. Nomos redirects there instead of showing the default page.

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React on your backend

Subscriptions originating from hosted checkout are tagged with source: "checkout", so you can distinguish them when processing webhooks. Two events fire over the lifetime of a signup, separated in time:
  • subscription.created immediately, when the form is submitted. Use it to provision your own user record.
  • subscription.confirmed later, once the grid operator has accepted the switch. Use it for confirmation emails and to unlock portal access.

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FAQ

Not yet. Plans live on {plan.slug}.checkout.energy. The subdomain reads your plan slug, applies your branding, and serves the form.
The form is fixed: address, supplier, household size, IBAN, marketing consent. To collect anything else, use Build your own where you control the entire UI.
Currently only German (default) in a formal (Sie) and informal (Du) setting.