Show HN: Coinmarketcap replacement with free JSON API

Post by cryptoplot » Fri, Dec 07, 2018, 10:33 PM UTC

exoesquitur wrote: post #78

gregmac wrote: post #34

Earlier quoted context omitted.

Why is it better to let people choose? That implies there is a downside to https:// or a reason some people prefer http:// -- can you elaborate? If you type just the domain name you get http:// by default, which, in my experience, is how most people type in site URLs.

I use http from embedded devices that cannot do https due to memory constraints. Http access is appreciated for this use case. But.... Do you guys have a business model that is going to keep you around long enough for me to bother hardcoding your api into embedded devices? I build things that connect real world actions to cryptocurrency markets, diverting power, metering resource consumption, etc.

Post by cryptoplot » Fri, Dec 07, 2018, 10:39 PM UTC

exoesquitur wrote: post #79

cryptoplot wrote: post #60

Earlier quoted context omitted.

People have their reasons, we respect that. But a default to https, why not? It seems reasonable to me. I am not sure on how to get https:// by default while still supporting http:// for people who prefer it. It may take some advanced 302 redirect. We will investigate and see what we can do there. Suggestions are much appreciated.

I use http from embedded devices that cannot do https due to memory constraints. Http access is appreciated for this use case. But.... Do you guys have a business model that is going to keep you around long enough for me to bother hardcoding your api into embedded devices? I build things that connect real world actions to cryptocurrency markets, diverting power, metering resource consumption, etc.

Post by cryptoplot » Sat, Dec 08, 2018, 12:06 AM UTC

maxlybbert wrote: post #81

cryptoplot wrote: post #57

Earlier quoted context omitted.

Not sure. Check http://cryptomarketplot.com/accessible-index.html : the numbers are also aligned, and in less space that it would take if 5.744e-5 was to have all its leading zeroes.

Within each section, right now, the exponents remain the same. I’ll concede that when that’s true, the choice of notation is irrelevant. However, occasionally, prices will straddle a boundary between 1.9eX and 9.0eY with |X - Y| = 1. In those cases, the different exponents will be easier to miss than the different number of digits or different number of leading 0s.

Post by cryptoplot » Sat, Dec 08, 2018, 4:33 AM UTC

DINKDINK wrote: post #85

cryptoplot wrote: post #22

Earlier quoted context omitted.

Indeed, the median works better in general, even on degenerate distributions. The Cauchy distributions has no defined mean, but still has a median. We need to upgrade the FAQ to be more specific with the methods we use. To be quick: The price come from many exchange. We exclude suspicious points. Then we do aggregation function like the average. Averaging may not technically be the best method, but it is simple, and…

>we assume the Law of Large Number apply Null hypothesis mandates you make no such assumption. Even if you did, a gaussian distribution assumes variable independence which markets are most certainly not. Even still if the variables were independent, you surely don't have enough samples of prices to report an accurate mean.

Post by mewwts » Wed, Dec 12, 2018, 6:41 AM UTC

cryptoplot wrote: post #23

mewwts wrote: post #11

Earlier quoted context omitted.

I'd love historical API access!

We are split on that. We would like to offer historical API to paying customers. We have a lot of data. But we want to retain customers. We do not want them to leave after dumping our data. At keep keep paying us :-) So we came to the conclusion: you get data from when you start to pay us, and we add a little extra (last 2 months) but no more. It is in the FAQ. Historical API, we must think more about that.