What is CAPI (Conversions API)?

A server-to-server connection that sends conversion events directly from your server to Meta, bypassing browser limitations. CAPI improves tracking reliability compared to pixel-only setups, especially after iOS privacy changes killed a lot of cookie-based tracking.

Last updated 2026-04-17

A server-to-server connection that sends conversion events directly from your server to Meta, bypassing browser limitations. CAPI improves tracking reliability compared to pixel-only setups, especially after iOS privacy changes killed a lot of cookie-based tracking.

Why CAPI matters: iOS 14.5+ privacy changes mean browser-based tracking (Pixel alone) captures fewer conversions. CAPI + Pixel together gives you the most complete tracking picture.

Frequently Asked Questions

What is CAPI (Conversions API)?

A server-to-server connection that sends conversion events directly from your server to Meta, bypassing browser limitations. CAPI improves tracking reliability compared to pixel-only setups, especially after iOS privacy changes killed a lot of cookie-based tracking.