Accessing Market Data

[tspoff]

CoinGecko API is a solid choice, and what we used for Balancer project. Open to other suggestions. From here we can get asset values in any fiat currency, as well as price action within a timeframe.

They also have a nice Javascript wrapper lib already

• Will we need to consider rate limits / API keys here?
  • Free tier is 100 requests / minute.

What data do we need?

For each asset:
* Current price (in USD)
* 24 hour change

You can make one call /coin/:id but there is a ton of extraneous data

[dOrgJelli]

Another route that could be taken:

• Aggregate multiple sources into a single "average" price across all markets.
• We can start with "free" sources, such as the various on-chain price oracles (Uniswap, Synthetix, dxdx, etc)
• If this is a native application, historical price data can be persisted to help with loading.

[tspoff]

Great points. We could use the first two to reduce dependency on any given service.
Native app isn't in the scope for now - but I think it will need to be for Mix to be competitive.