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DEVELOPER PLATFORM · REST API + SDKS

Meter Any Resource. Skip the Billing Logic.

One API call for any resource. Aforo handles metering, aggregation, and invoicing. Scale to millions of events per second.

Read the DocsView on GitHub
P99 Latency
< 8ms
Capture Rate
99.99%
Throughput
2.4M/s
quickstart.js
const Aforo = require('@aforo/sdk')
const aforo = new Aforo
  (
  apiKey: 'sk_live_...'
  )

await aforo.ingest({
  customerId: 'cust_123',
  metric: 'api_calls',
  quantity: 1
})
4ms · event recorded
01
Install SDK
02
Set API Key
03
Ingest Event
04
Define Pricing
05
Invoice fires

Get Started in Minutes

1
Create Product
Define what you want to meter
2
Ingest Events
Send usage data via API
3
Attach Rate Plan
Set your pricing model
4
Watch Invoices
Automated billing on schedule
const Aforo = require('@aforo/sdk');
const aforo = new Aforo({
  apiKey: 'your-api-key',
});

await aforo.ingest({
  customerId: 'cust_123',
  metric: 'api_calls',
  quantity: 1,
  properties: { endpoint: '/v1/users' },
  idempotencyKey: 'evt_' + Date.now(),
});
200 events processed

Integration Library

API Gateways
AI Providers
Payments & Finance

Developer Tools

REST API

  • • Type-safe endpoints
  • • Automatic retries
  • • Rate limiting headers

Webhooks

  • • Real-time events
  • • Signature verification
  • • Retry policy

Embeddable Widgets

  • • Usage charts
  • • Billing preview
  • • Custom branding

SDKs

  • • JS/TS, Python, Go
  • • Type definitions
  • • Full API coverage

REST API Reference

POST
/v1/events
Ingest usage event
GET
/v1/customers
List customers
GET
/v1/metrics
List metrics
PUT
/v1/customers/{id}
Update customer
POST
/v1/rate-cards
Create rate card
GET
/v1/invoices/{id}
Get invoice
POST
/v1/invoices
Create invoice
DELETE
/v1/webhooks/{id}
Delete webhook
Webhook Event Example: invoice.created
{
  "id": "evt_abc123",
  "type": "invoice.created",
  "timestamp": "2026-03-15T14:30:00Z",
  "data": {
    "invoiceId": "inv_xyz789",
    "customerId": "cust_123",
    "amount": 150.00,
    "currency": "USD",
    "status": "draft",
    "lineItems": [
      {
        "metric": "api_calls",
        "quantity": 50000,
        "unitPrice": 0.003,
        "total": 150.00
      }
    ]
  }
}

Community & Support

Developer Community

Slack

Connect with other developers building on Aforo

Open Source SDKs

GitHub

Contribute to our SDK libraries and tools

Documentation

docs.aforo.ai

Comprehensive guides and API reference

Technical Support

Support Team

Expert help for Enterprise customers

Meter your first resource today.

Join hundreds of companies automating their usage-based billing.

Read the DocsTalk to Solutions Engineer