polygon-io
Create an "All Crypto Pairs" reference endpoint
Is your feature request related to a problem? Please describe. I would love to start doing some analytics on crypto pairs in Polygon, but it's currently not possible for me to list which crypto pairs are available in Polyon. I basically have to find them ad hoc or bring a list of pairs myself and hope that they match the ones you have on file.
Describe the solution you'd like
Similar to the stocks reference data /v3/reference/tickers endpoint, I believe there should be an endpoint that allows you to determine which crypto pairs Polygon has information about.
Describe alternatives you've considered I considered assembling a list of crypto tickers myself, but was discouraged by https://github.com/polygon-io/issues/issues/259. The problem with bringing your own tickers is that Polygon might use slightly different symbols than the ones I would bring to the table, and there would be no way for me to determine if Polygon was really missing data for a given cryptocurrency or if I just brought a slightly different crypto ticker than the one that Polygon uses.
Actually it looks like the all tickers endpoint returns crypto ticker endpoints as well. Are all of them prefixed "X:"? If so, would it be possible to document that somewhere?
Hello! Yes, you can find all crypto tickers supported by Polygon.io using the Tickers endpoint. Just set the "market" parameter to "crypto". The query will look like this: https://api.polygon.io/v3/reference/tickers?market=crypto&active=true&limit=1000&apiKey=**
And yes, you'll need the prefix X: when querying pairings. It would be a good idea for that to be written somewhere on our Crypto docs page. I'll see what we can do about that! : https://polygon.io/docs/crypto/getting-started
