> ## Documentation Index
> Fetch the complete documentation index at: https://api.corpay.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Performance

All API endpoints include performance expectations using this format:

`p50 <= X ms, p99 <= Y ms`

This page explains how to interpret these values.

## Percentiles

* `p50` is the median response time. 50% of successful requests complete at or below this value.
* `p99` is the tail response time. 99% of successful requests complete at or below this value.

Latency scope is server-side successful request handling only (2xx), excluding network/client effects.