BlockCypher vs CryptAPI
Same instrument, two spec sheets — measured, not claimed.
BlockCypher vs CryptAPI: common questions
Which is more reliable, BlockCypher or CryptAPI?
On our scheduled checks, CryptAPI leads on measured uptime — BlockCypher at 30.4% versus CryptAPI at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, BlockCypher or CryptAPI?
BlockCypher has the lower median latency in our checks — BlockCypher responds in 145 ms versus CryptAPI at 496 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do BlockCypher and CryptAPI need an API key?
Neither needs a paid key — BlockCypher is callable with no signup, and CryptAPI is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call BlockCypher and CryptAPI from the browser?
Only CryptAPI is browser-friendly — it returns CORS headers over HTTPS. BlockCypher needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are BlockCypher and CryptAPI free for commercial use?
BlockCypher has unclear commercial terms, and CryptAPI allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.