AI billing support for subscriptions.
Charges explained, payments retried, plans paused.
Connect Stripe, Paddle, Chargebee, Lemon Squeezy or RevenueCat and Kai answers billing questions with the real subscription and invoice. It retries failed payments, pauses or resumes plans when the customer confirms, and brings refunds to your team as one card.
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Every charge explained.
Kai looks up the customer's subscription, invoices and the last payment, explains what a charge was for, sends the invoice and opens the billing portal when the customer needs it.
We looked at your website. Connect what you use.
Stripe Billing questions answered Stripe Checkout found on lumen.appLumen Inc Connect Connected 
Paddle Subscriptions in the inbox Paddle checkout found on lumen.appLumen Ltd Connect Connected 
RevenueCat In-app subscriptions Lumen appLumen app Connect Connected Use something else? Search 2,000+ tools
Plans paused, payments retried.
Kai pauses or resumes a plan, retries a failed payment, updates billing details or applies a retention discount, each after the customer confirms on one card.
Refunds, ready for one click.
Refunds and cancellations go to your team as one card with the charge, the reason and Kai's recommendation. Approve it and the customer hears back right away.
