FinSignals API vs Telegraph
Same instrument, two spec sheets — measured, not claimed.
FinSignals API vs Telegraph: common questions
Which is more reliable, FinSignals API or Telegraph?
On our scheduled checks, FinSignals API leads on measured uptime — FinSignals API at 100% versus Telegraph at 99.02% 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, FinSignals API or Telegraph?
FinSignals API has the lower median latency in our checks — FinSignals API responds in 312 ms versus Telegraph at 801 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 FinSignals API and Telegraph need an API key?
FinSignals API needs no key, while Telegraph requires a free API key. If you want to start calling without signup, reach for FinSignals API first.
Can I call FinSignals API and Telegraph from the browser?
Yes — both FinSignals API and Telegraph 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 FinSignals API and Telegraph free for commercial use?
FinSignals API has unclear commercial terms, and Telegraph 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.