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Reading what you describe, I think Coinigy does this currently. I have a premium account and use it as an 'exchange aggregator' for my trade portfolio, to trade

Reading what you describe, I think Coinigy does this currently. I have a premium account and use it as an 'exchange aggregator' for my trade portfolio, to trade on and trade between many different exchanges with many trade pairs, and I believe it offers an API so that I could essentially abstract their frontend from the process. I pay about 20 dollars a month.

LrnByTeach 9y ago
Yes, Good source for BTC historical data https://www.coinigy.com/bitcoin-data/ https://www.coinigy.com/bitcoin-data/
- josh2600 9y ago
  BTC is easy. There are a million sources for it. The altcoins are the hard ones.
  - jameskegel 9y ago
    Which trade pairs are you looking for that Coinigy doesn't track and service already?