The API routes listed below return values in TIA:

/v0/circulating-supply
/v0/circulating-supply?date=2025-05-31
/v0/total-supply
/v0/total-supply?date=2025-05-31

Note on methodology: due to complexity, this supply API does not adjust the circulating supply for tokens that were retroactively locked after TGE, for example due to CIP-31. As a result, the reported circulating supply may include a minor margin of error (likely no more than around 1%), decreasing to zero as lockups elapse.