USDbC/USD price feed
USDbC is bridged USDC on Base, the dollar the network used before native USDC arrived. It has been in handover ever since: same issuer economics underneath, but a representation the ecosystem is actively replacing.
Aggregate on-chain rate: hourly view of the last 3 days. The API itself updates block by block. Request API access
Book composition · auto-observed
The weight sits evenly across venues right now, spanning more than one chain.
A dollar being relieved of duty
When a native version arrives, the bridged one does not vanish. It sits in old positions, old pools and old integrations, unwinding at the pace of whoever still holds it.
A dollar in that phase still needs a price, arguably more than a healthy one does: exits, migrations and reconciliations all happen at the traded level of the token being left.
This page keeps that level current for as long as the book exists. The market will decide when this reading goes quiet.
Who runs on this rate
Teams migrating old integrations
The legacy representation's own level is what conversions actually clear at.
Auditors closing old books
Positions from a previous phase need marks from the book they lived in.
Where the USDbC market lives
Active USDbC/USD pools per chain, as observed by the feed on 2026-10-27.
USDbC in the catalog
2 pairs, each computed from its own pools with the same methodology:
Category overview: stablecoin prices → · Full catalog: coverage →