{"slug": "i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99", "title": "I Benchmarked 9 Crypto Exchange APIs From a US Datacenter (p50/p95/p99)", "summary": "A developer benchmarked REST API latency for nine crypto exchanges from a US-east datacenter, finding that Binance.US had the lowest p95 latency at 12.3ms while OKX had the highest at 262.7ms. Two major exchanges refused to respond from US infrastructure, and several exchanges showed significant p99 spikes, with Gemini exceeding one second. The benchmark is open-source and auto-refreshes every two hours.", "body_md": "I run automated trading strategies and kept choosing exchanges based on vague \"low latency\" marketing claims. So I built a benchmark to actually measure it. Here is REST API latency to 9 exchanges, measured from a US-east datacenter, with the method and raw data open so you can reproduce or challenge any number.\n\nBefore latency even mattered, two of the largest exchanges refused to respond from US infrastructure:\n\nIf you are building on US-hosted infra, that constrains your options before you write a line of code.\n\nLatency in milliseconds, ranked by p95. Snapshot as of 2026-07-07; the live version re-runs every 2 hours.\n\n| Exchange | US-legal? | p50 | p95 | p99 | mean |\n|---|---|---|---|---|---|\n| Binance.US | yes | 11.5 | 12.3 | 14.3 | 11.6 |\n| Bitfinex | no | 12.8 | 15.0 | 19.8 | 13.1 |\n| Coinbase | yes | 13.6 | 16.7 | 19.1 | 13.9 |\n| Kraken | yes | 15.0 | 36.8 | 61.1 | 17.8 |\n| Gemini | yes | 25.5 | 118.1 | 1056.4 | 78.1 |\n| Bitstamp | yes | 24.3 | 126.7 | 163.4 | 37.7 |\n| KuCoin | no | 174.9 | 192.0 | 208.6 | 177.3 |\n| Crypto.com | yes | 185.6 | 197.5 | 203.6 | 187.1 |\n| OKX | yes | 239.6 | 262.7 | 264.8 | 241.2 |\n\nKraken's median is a healthy 15ms, but its p99 blows past 60ms. Gemini's median is 25ms, but its p99 crosses a full second. If you size your timeouts and retry logic off the median, you get burned in exactly the volatility you built the bot for. Rank on p95 and p99.\n\nOKX (back in the US after its settlement) and Crypto.com both legally serve US customers, but they sit at 185 to 260ms from US-east. Their API endpoints are simply far away. Regulatory access and network proximity are two separate things, and only one of them shows up in a latency test.\n\nKnown limitations, because they matter:\n\nThe numbers auto-refresh every 2 hours from the same box, and the raw JSON plus the script are published so you can re-run it yourself. Live table and method: [https://fillbench.com/exchange-api-latency](https://fillbench.com/exchange-api-latency)\n\nWhat would you want measured next: authenticated order round-trip, or websocket latency and stability?", "url": "https://wpnews.pro/news/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99", "canonical_source": "https://dev.to/fillbench/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50p95p99-45dm", "published_at": "2026-07-07 18:49:14+00:00", "updated_at": "2026-07-07 19:28:47.612395+00:00", "lang": "en", "topics": ["developer-tools", "ai-infrastructure"], "entities": ["Binance.US", "Bitfinex", "Coinbase", "Kraken", "Gemini", "Bitstamp", "KuCoin", "Crypto.com"], "alternates": {"html": "https://wpnews.pro/news/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99", "markdown": "https://wpnews.pro/news/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99.md", "text": "https://wpnews.pro/news/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99.txt", "jsonld": "https://wpnews.pro/news/i-benchmarked-9-crypto-exchange-apis-from-a-us-datacenter-p50-p95-p99.jsonld"}}