Customers

API companies bill on Passage, from their first paying customer to millions of events a day.

Initech

Initech prices its API per call. Their finance team closes the month on Passage’s invoice previews and exports. Their full story is coming in November.

What teams use Passage for

• Per-call APIs: count calls per customer and price them in tiers.
• Storage and compute: sum gigabytes or CPU-seconds, priced by volume.
• Seats that move: count unique active users each month.
• Month-end close: export a month of raw events and reconcile it against the invoice.