If you run a trading bot, the exchange API you point it at quietly caps your
performance, but nobody publishes real latency numbers. So I built a benchmark
that pings the major exchanges every 2 hours from a fixed US East server and
ranks them by p95 tail latency (the slow requests that actually cost you when
markets move, not the feel-good median).
Current top of the board, US-legal venues:
| # | Exchange | p50 (ms) | p95 (ms) |
|---|---|---|---|
| 1 | Binance.US | 11.73 | 12.95 |
| 2 | Coinbase | 11.58 | 15.06 |
| 3 | Bitstamp | 22.17 | 27.35 |
| 4 | Kraken | 21.98 | 46.82 |
Snapshot 2026-07-08. The live board updates itself every 2 hours.
Live version: https://fillbench.com/exchange-api-latency?utm_source=devto&utm_medium=article
The method is public and the raw JSON is downloadable, so you can reproduce it
or verify it yourself.
You can embed the live board on your own site (one line, no script, always current):
<iframe src="https://fillbench.com/embed/latency" width="460" height="340"
style="border:0;max-width:100%" loading="lazy"
title="Live crypto exchange API latency by FillBench"></iframe>
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