USDa/USD price feed
USDa is a dollar token whose three-letter suffix collides with one of the best-known abbreviations outside crypto, which rules out casual lookup almost entirely. Inside this catalog it is unambiguous: one pair, one book, measured like the rest.
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 concentrates in one pool at the moment, with the rest of the depth on the same chain.
Catalog completeness has a point
Some instruments will never be found through a general search, yet they sit in real portfolios and real pools. Coverage that skips them forces their holders back onto self-reported numbers.
This page exists for that holder. The pair resolves by its book rather than by its crowded name and the reading follows whatever venues trade it, however quiet they run.
Who runs on this rate
Holders of low-profile dollars
Obscurity is not an exemption from needing a mark.
Platforms listing broad collateral sets
Every accepted asset needs a price source, including the ones nobody searches for.
Where the USDa market lives
Active USDa/USD pools per chain, as observed by the feed on 2026-10-27.
USDa in the catalog
2 pairs, each computed from its own pools with the same methodology:
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