Postman Echo vs Shodan EntityDB API
Same instrument, two spec sheets — measured, not claimed.
Postman Echo vs Shodan EntityDB API: common questions
Which is more reliable, Postman Echo or Shodan EntityDB API?
Both are neck-and-neck — Postman Echo and Shodan EntityDB API each measure 100% 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, Postman Echo or Shodan EntityDB API?
Postman Echo has the lower median latency in our checks — Postman Echo responds in 201 ms versus Shodan EntityDB API at 918 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 Postman Echo and Shodan EntityDB API need an API key?
Neither needs a paid key — Postman Echo is callable with no signup, and Shodan EntityDB API is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Postman Echo and Shodan EntityDB API from the browser?
Neither sends browser-friendly CORS headers reliably, so call Postman Echo and Shodan EntityDB API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Postman Echo and Shodan EntityDB API free for commercial use?
Postman Echo has unclear commercial terms, and Shodan EntityDB API 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.