Blockchair vs Sharpe
Same instrument, two spec sheets — measured, not claimed.
Blockchair vs Sharpe: common questions
Which is more reliable, Blockchair or Sharpe?
Both are neck-and-neck — Blockchair and Sharpe each measure 98.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, Blockchair or Sharpe?
Blockchair has the lower median latency in our checks — Blockchair responds in 729 ms versus Sharpe at 1239 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 Blockchair and Sharpe need an API key?
Neither needs a paid key — Blockchair is callable with no signup, and Sharpe is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Blockchair and Sharpe from the browser?
Yes — both Blockchair and Sharpe send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Blockchair and Sharpe free for commercial use?
Blockchair has unclear commercial terms, and Sharpe has unclear commercial terms. 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.