license: cc-by-4.0
language:
- en
tags:
- finance
- cryptocurrency
- benchmark
- latency
- trading
- apis
pretty_name: Crypto Exchange REST API Latency Benchmark
size_categories:
- n<1K
Crypto Exchange REST API Latency Benchmark
Open, reproducible latency benchmark for the public REST APIs of major crypto exchanges: Coinbase, Kraken, Gemini, Crypto.com, Bitfinex, and KuCoin.
Live site and full context: fillbench.com/exchange-api-latency
How it is measured
Each run holds one persistent keep-alive HTTPS connection per exchange, warms it up, then times back-to-back GET requests to a small public market-data endpoint (no API keys, no auth, no orders). The one-time TLS handshake is timed separately as connect_ms and kept out of the request latency. Any non-200 or error is excluded from the stats and counted separately.
Every run executes from the same fixed US East server. That fixed vantage point is the point: it keeps the comparison between exchanges stable from run to run instead of drifting with whatever cloud region hosted the test. Read the numbers as a fair relative ranking from one consistent US vantage point. Full method: fillbench.com/methodology.
Fields
Per venue, per run: min / p50 / p95 / p99 / max / mean request latency in milliseconds, TLS connect_ms, samples_ok, errors, and a US-reachability flag. history.json holds a rolling daily p50/p95 time series per venue.
Cadence
The benchmark reruns every 2 hours. This mirror is refreshed daily. The freshest single run is always at fillbench.com/data/latency-latest.json.
License and attribution
Released under CC BY 4.0. Free to use, share, and build on, including commercially, with credit.
Attribution: Latency data by FillBench (https://fillbench.com), CC BY 4.0.
Cite as: FillBench. "Crypto Exchange REST API Latency Benchmark." https://fillbench.com/exchange-api-latency