APIMeter
Now in public beta

Meter every API call.
Monetize every token.

APIMeter is real-time usage metering, token tracking, and hybrid monetization middleware for AI SaaS vendors. Drop it in, meter events, and bill via Stripe.

Free 14-day trial. No credit card required.

Everything you need to meter \u0026 monetize APIs

A complete middleware layer between your API and Stripe, purpose-built for AI-first SaaS products.

Real-time usage metering

Capture every API call as it happens with sub-second aggregation, quotas, and burst detection.

Token-level tracking

Break usage down by model, user, tenant, and request so you know exactly what each customer costs.

Hybrid pricing engine

Mix flat subscriptions and usage-based pricing. Change plans without touching your billing code.

API keys & rate limiting

Issue scoped keys, set tiered rate limits, and throttle by customer or workspace in one place.

Webhooks & usage events

Emit usage events to your stack via webhooks and let APIMeter reconcile them into invoices.

Dashboards & export

Visualize trends, export to CSV, and pipe data into your warehouse for deeper analysis.

Ship metering in an afternoon

No billing rewrite required. Connect your API, connect Stripe, and start charging.

01

Drop-in middleware

Add APIMeter as a proxy or SDK in front of your API. Works with any backend—Node, Python, Go, or edge functions.

02

Meter events

We record requests, tokens, latency, and errors in real time. Multi-tenant by default, so usage is always tied to the right customer.

03

Bill via Stripe

Usage feeds into Stripe Billing automatically. Hybrid plans, overages, and prorations are handled for you.

Simple, transparent pricing

Start free for 14 days. Upgrade when you are ready to bill real customers.

Starter

For indie builders shipping their first paid API.

$19/mo
  • 50,000 metered events/mo
  • 2 team members
  • Stripe subscription billing
  • Email support
Most popular

Team

For growing AI SaaS teams with hybrid pricing.

$49/mo
  • 250,000 metered events/mo
  • 10 team members
  • Hybrid pricing engine
  • Webhooks & usage events
  • Priority support

Business

For vendors scaling usage-based revenue.

$99/mo
  • 1,000,000 metered events/mo
  • Unlimited team members
  • Rate limiting & API keys
  • Advanced dashboards
  • Dedicated support

Loved by AI SaaS teams

Teams shipping LLM APIs use APIMeter to meter, bill, and scale.

“APIMeter turned our messy Stripe billing code into a single middleware layer. We shipped usage-based pricing in a week.”

Sarah Chen
CTO, PromptLayer

“Token-level tracking finally let us see which customers and models were eating our margin. Game changer.”

Marcus Webb
Head of Engineering, SynthAPI

“The hybrid pricing engine means we can offer subscriptions plus overages without maintaining two billing systems.”

Elena Ruiz
Co-founder, VectorScale

Questions \u0026 answers

Everything else you might want to know before you start metering.

APIMeter sits between your API and your customers to meter usage in real time, track tokens per request, and monetize via Stripe subscriptions or usage-based billing.
Most teams add our middleware or SDK in under an hour. Metered events start appearing immediately, and billing rules can be configured without code changes.
Yes. APIMeter creates Stripe Checkout sessions and connects to Stripe Billing for invoicing. Bring your own Stripe account and keys.
APIMeter aggregates events with idempotency keys and durable queues, so usage is accurate even during bursts or retries.
Absolutely. The hybrid pricing engine lets you charge a base subscription plus overages, making it ideal for AI SaaS with variable compute costs.

Ready to meter every API call?

Join teams using APIMeter to ship real-time usage metering and hybrid billing in days, not quarters.