Credit pool25,000
Credit purchase
Customers buy a pool of credits upfront, as part of a subscription or a standalone purchase. Credits can carry forward across periods or expire at period end.
Usage-Based Billing
Automate metering and usage based billing
Measure product usage, define how customers pay, and automatically calculate every charge—from AI tokens and credits to hybrid pricing and custom metrics.
Usage infrastructure that turns product activity into billable revenue
Capture product events, apply any pricing formula, and automatically generate the invoice.
Invoice customers for any usage metric
Create any usage-based pricing model with the metrics you want, from API calls to tokens to transactions
Meter exactly what customers consume
Calculate and aggregate billing metrics using Excel style formulas to ensure every charge is measurable and accurate
No touch billing for usage-based pricing
From product event to invoice, Turnstile applies pricing rules, calculates every charge, and automatically generates invoices according to the customer's billing schedule.
Sell it your way. Bill it accurately every time
Prepaid Credits
Automate credit-based pricing
Sell prepaid credits, automatically deduct usage, and bill overages without manual reconciliation.
Balance10,400
Credits → products
Customers spend their credit balance on products and services. Turnstile tracks drawdown in real time, triggers overage billing when the pool runs out, and shows remaining balance on every invoice.
Period spendCap 20,000
Spend controls
Set limits on how much a customer can consume in a period. Turnstile enforces the cap, so you never deliver more than what was contracted.
Contract Builder
Implement usage pricing without engineering
Upload a pricing agreement, rate card, or customer contract. We read and understand your usage metrics, pricing tiers, and invoice schedule to generate a production-ready usage pricing contract in minutes.
Rating Engine
Price however you want
Apply any pricing formula to the metered usage from simple tier pricing to complex dynamic formulas that aren't even possible in custom excel workbooks.
Metered usage
api_calls312,400
gpu_hours1,420
credits62,400
Pricing formula
MAX(0, usage − included)
× overage_rateUse any Excel style formulaInvoice line
Overage units62,400
Rate$0.002
Amount due$124.80
Tiered overage
MAX(0, usage − 250,000) × 0.002Commitment floor
MAX(usage × rate, min_commit)Take rate with floor & cap
MIN(MAX(GMV × take_rate, floor), cap)
Turnstile’s support has been invaluable. They’ve streamlined our quote-to-cash process, and whenever I need help—even with strategy or best practices—their team is instantly accessible.
Before Turnstile, invoicing was a week-long grind. Now we send hundreds of invoices monthly in just minutes — saving us countless hours and eliminating costly billing errors.
Cyrus Shirazi
Co-Founder & CEO
Turnstile was the only solution that could truly automate our quoting process. What once slowed us down is now fast and fully automated, letting us focus on growth.
Andy Aupperlee
