Poloniex legacy API has been discontinued.

[ghost]

The legacy API (https://poloniex.com/public) seems to have been turned off, now the Pricenode is getting error response codes and no market data. Seems Poloniex announced last year, perhaps just now they have decommissioned legacy support.

You can check it by trying the legacy API: curl "https://poloniex.com/public?command=returnTicker"

Knowm XChange library still uses the legacy endpoint. There was some discussion of it a year ago, but the new API has not yet been adopted in the code.

Options:

1. What
2. Update the XChange code (learning curve..)
3. Wait for someone else to update the XChange code.
4. Discontinue use of Poloniex.
5. Write own adapter for Poloniex.