This reference documents https://api.centaur.io/v1. Existing clients can keep using v1 and move individual reads to v2. New integrations should use v2. There is no retirement date.
The legacy trader collection includes tradeCount and trading filters. v2 splits identity lookup from activity selection: see Trader directory migration. For unchanged reads, you can keep the same filters and continuation tokens when you switch versions.
Authentication, requests and responses, and errors work the same in both versions. The guides use v2 paths. Last modified on October 22, 2026
