Skip to main content
Connect your payment provider to see which marketing channels drive revenue, not just traffic.

Supported providers

PostMetric supports the following payment providers:
  • Stripe - Checkout API, PaymentIntent API, Payment Links
  • LemonSqueezy - Checkout API, Payment Links
  • Custom API - Record payments via our API

How it works

When a payment is completed, PostMetric links it to the visitor who made the purchase. This allows you to:
  • See which marketing channels drive revenue
  • Calculate ROI for your campaigns
  • Track conversion rates by source
  • Identify your most valuable traffic sources

Setup methods

Webhooks automatically send payment data to PostMetric when a payment is completed.

Stripe webhooks

Set up Stripe webhooks

LemonSqueezy webhooks

Set up LemonSqueezy webhooks

Method 2: API

Record payments manually using our API:
See our Payment API documentation for more details.

Linking payments to visitors

PostMetric uses three methods to link payments to visitors, in order of preference:
  1. Metadata method (most reliable) - Include visitorId or sessionId in your payment metadata
  2. Email matching - Match customer email to identified users
  3. Timestamp correlation - Link payments to recent sessions (fallback)
For best results, use the metadata method by including visitor/session IDs in your payment metadata.

View revenue data

Once payments are linked, you can view revenue data in your dashboard:
  • Revenue over time
  • Revenue by source/channel
  • Conversion rates
  • Average order value by source

Next steps

Stripe integration

Detailed Stripe setup guide

LemonSqueezy integration

Detailed LemonSqueezy setup guide