---
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](https://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](https://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](https://fillbench.com/data/latency-latest.json).

## License and attribution

Released under [CC BY 4.0](https://creativecommons.org/licenses/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