Financial Data vs World Trading Data
Same instrument, two spec sheets — measured, not claimed.
Financial Data vs World Trading Data: common questions
Which is more reliable, Financial Data or World Trading Data?
On our scheduled checks, World Trading Data leads on measured uptime — Financial Data at —% versus World Trading Data at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do Financial Data and World Trading Data need an API key?
Both ask you to authenticate — Financial Data uses an API key and World Trading Data uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call Financial Data and World Trading Data from the browser?
Neither sends browser-friendly CORS headers reliably, so call Financial Data and World Trading Data from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Financial Data and World Trading Data free for commercial use?
Financial Data has unclear commercial terms, and World Trading Data 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.