Onboarding (whitelisting) tokens to enable single sided deposits requires a whitelisting proposal to pass in the Bancor DAO.
First, please make sure your token meets our technical guidelines by answering this questionnaire.
Second, a discussion in Discourse should be created to gauge the interest of the Bancor community. A generic template for a whitelisting proposal can be found here.
Third, a formal vote in Snapshot is required to pass meeting our quorum and supermajority requirements.
Whitelisting Requirements are outlined here.
Once the proposal has passed, your token can be listed on Bancor for trading and deposits.