OpenRelay is an open source relay for the 0x protocol. OpenRelay provides an open, scalable orderbook. Users can post offers for any ERC20 or ERC721 token, or search for trades with other users
We also have a number of extensions to the SRA. Essentially, anything that can be in a query parameter can be a websockets filter parameter - this was necessary for websockets to enforce the same parameters as pools.
Resolves https://github.com/NoteGio/openrelay/issues/4 - not quite to the specification of the original ticket, but it should be compliant with the srav2.