Combinator (W23)AI billing that
just works
JustPaid handles your customer contracts and AI usage billing automatically—so you can focus on building breakthrough AI products instead of wrestling with invoices.
AI Operations Center
ML-Native • Intelligent
2.4M this month
847M processed
12 active
$180K MRR
$23.4K
GPU costs this month
-18%
vs last month
$89.2K
Paid this month
23 countries
Multi-currency
You are shipping AI fast, but monetization keeps breaking whenever pricing changes. Every new model, token rule, or contract variant creates another billing edge case. The stack gets brittle.
🤖JustPaid turns usage events into contract-accurate revenue automatically. Launch pricing updates and tokens, credits, invoicing, AR, and revenue recognition stay synced. No custom billing patches each release.
WHY JUSTPAID?
Revenue design for an
AI-first world
JustPaid is built for companies where usage drives value and value drives pricing. We unify product data, billing logic, and reporting workflows so you can design, simulate, and scale revenue with clarity.
Manage customers and contracts seamlessly
JustPaid handles your customer relationships and contract management, automatically parsing agreements and generating accurate invoices based on your AI usage models so you can focus on building, not billing.
Launch and iterate on AI pricing without code debt
Deploy new monetization models as quickly as you ship features. JustPaid supports usage-based, hybrid, and custom pricing structures with no engineering rework.
One platform, three teams
Engineering ships metering. Product ships pricing. Finance ships accurate revenue. JustPaid gives each team the surface they expect, backed by the same source of truth.
FOR ENGINEERING
APIs, SDKs, and reliable event ingest
Stream usage events from any service- SDKs for Node, Python, and curl-friendly REST
- Idempotency, replay, and retries by default
FOR PRODUCT
Launch and iterate on pricing without a ticket
- Token, credit, per-outcome, and hybrid models
- Package experiments without engineering rework
- Self-serve plan changes and roll-forwards
FOR FINANCE
Accurate invoices, clean AR, auditable revenue recognition
- Contract-aware invoicing across every SKU
- Automated dunning and collections workflows
- Close the month with ASC 606-ready reporting
Metering is a feature. Revenue is the product.
Developer-first metering tools stop at the usage event. JustPaid takes it the whole way — contracts, tokens, credits, invoicing, AR, and revenue recognition — so your team ships pricing instead of stitching a billing stack together.
Metering you can trust.
Guardrails you can sleep on.
Send usage events from anywhere. JustPaid aggregates, prices, and invoices — and stops runaway accounts before they become a support ticket.
// Report tokens, API calls, or any AI event
await justpaid.events.report({
customer_id: "cus_acme",
event: "llm.inference",
properties: {
model: "gpt-4.1-mini",
input_tokens: 1_842,
output_tokens: 512,
},
});
// Pricing, invoicing, and revenue
// recognition are handled for you.Credit wallets and balances
Prepaid credits, top-ups, and roll-forwards that reflect exactly what a customer has left to spend.
Spend caps and thresholds
Hard limits per customer, per SKU, or per agent — enforced in real time so a runaway script does not become an invoice you have to credit back.
Fraud and anomaly alerts
Detect abnormal usage patterns before they land in an invoice. Alerts fire to your team and optionally pause usage until reviewed.
Revenue recognition that closes the loop
Contract-aware ASC 606 recognition tied to the same events that generate the invoice — no separate spreadsheet.
From the blog
How AI is breaking the way companies charge for software
Seat-based pricing is collapsing. Tokens, credits, usage, and hybrid models are the new default. Read the playbook for deciding what to charge for — and how to bill it.
Cost of stitching
Where teams lose time after metering
Developer-first metering tools are great at event ingestion. Finance workflow still gets stitched across multiple systems.
Without JustPaid
- Billing logic sits in code, CRM, and billing tools.
- Dunning, AR, and rev rec run as disconnected workflows.
- Month-end close relies on manual reconciliation.
With JustPaid
- Usage events become contract-aware invoices automatically.
- Collections, AR, and rev rec stay in one workflow.
- Clean handoff to your GL with an audit-ready trail.
From an AI HealthTech customer
"In healthcare, every partnership is different, and JustPaid's flexibility makes it easy for us to structure deals that reflect the unique relationships we have with our clients. Their platform adapts to the way we work, so we can focus on building those relationships instead of wrestling with invoicing and contracts."
Plug revenue into your
existing GTM and finance stack
JustPaid connects product usage, CRM context, invoicing, collections, and accounting into one operating loop, so finance and GTM teams work from the same source of truth.
Works with your existing stack
CRM context and contract terms stay aligned with billing.
Payments and collections reconcile against invoices automatically.
Revenue and AR sync to your books with one audit trail.
No rip-and-replace migration required - JustPaid connects to the systems your teams already run.
Schedule a personalized demo today
In just 30 minutes, we'll show you the key differences and help you understand which platform fits your needs best.