Recurring Revenue. Zero Admin Overhead.
At 50 subscription customers, manual billing is annoying. At 500, it breaks. ZeyOS automates your entire billing cycle, license management, and customer self-service - so your team can focus on the product.
Billing That Runs Itself
Subscription invoices generated and sent automatically on due dates. No manual triggers, no missed renewals.
Customer Self-Service Portal
Let customers manage their own subscriptions, download invoices, and raise support tickets - without involving your team.
Extend via API
Build custom subscription workflows, usage-based billing logic, or customer portals on top of the ZeyOS REST API.
Subscription Billing That Doesn't Need Babysitting
Manual billing processes don't scale. The moment you have more than a handful of subscription customers, you're spending engineering and finance time on administration instead of growth. ZeyOS automates everything from the contract to the paid invoice.
Flexible Billing Cycles Monthly, quarterly, annual, or custom - define any billing frequency per customer or plan tier.
Automated Invoice Runs ZeyOS generates and sends invoices for all active subscriptions on their due dates - no manual triggers, no missed charges.
Proration & Seat Changes Handle mid-cycle upgrades, downgrades, and seat additions with automatic proration calculations. No manual adjustments.
Audit-Proof Records Every invoice, credit note, and payment is immutably recorded. Full compliance trail without additional accounting software.
License Management That Doesn't Live in a Spreadsheet
Tracking customer licenses, seat counts, and entitlements in Excel is a liability - version conflicts, missed renewals, and billing discrepancies are inevitable. ZeyOS centralizes every license to every customer in a single, queryable record.
Seat-Based Tracking Track exact license counts per customer. Get alerts when customers exceed their purchased seats - before it becomes a billing dispute.
Renewal Alerts Proactive notifications before licenses expire. Sales team sees upcoming renewals in their pipeline - no revenue lost to inaction.
API-Driven Entitlement Expose license status via API so your product can enforce seat limits and feature flags based on live subscription data from ZeyOS .
A Self-Service Portal Your Customers Actually Use
Every "can you send me my invoice?" email is a support ticket that shouldn't exist. Every upgrade request that requires a sales call is friction that costs you conversions. ZeyOS lets you build a customer portal where clients handle these themselves.
Invoice Self-Service Customers download their own invoices, statements, and contract documents without contacting support.
Subscription Management Customers upgrade, downgrade, or add seats within approved parameters - without a sales call. Changes reflect in billing automatically.
Built on the ZeyOS API The portal is built on ZeyOS 's open REST API, giving your developers full control over the UI, branding, and feature set.
B2B SaaS Platform, 400+ customers
We had billing in one tool, license tracking in a spreadsheet, and customer communications in a third system. Scaling past 200 customers exposed every seam. We moved to ZeyOS and automated the billing cycle completely. Our finance team now spends their time on analysis, not invoice chasing.
See What Automated Billing Looks Like for Your Model
Book a focused 30-minute session. We'll map your current billing flow and show you exactly where ZeyOS automates the manual work.
Book a Demo