OUSDT/USD price feed
Most stablecoins are priced against other stablecoins. oUSDT has spent much of its young life breaking that habit, trading against bitcoin plus ether over shelves that empty and refill at a pace most dollar books rarely match.
Aggregate on-chain rate: hourly view of the last 4 weeks. The API itself updates block by block. Request API access
Book composition · auto-observed
The largest venue accounts for the majority at the moment, trailed by pools on other chains.
When a dollar trades in coin terms
For a dollar token, coin quotes are an inverted shape: most dollar books lean on stablecoin pairs, while this one has repeatedly tilted toward bitcoin plus ether legs. How the split stands this week belongs to the composition line, not to prose; the tilt itself has been this book's signature since early in its life.
Coin legs demand more machinery. Each one resolves through its own dollar market before this level forms, so none of their volatility bleeds into a number that should sit near one. What the extra plumbing buys is a reading taken where the volume happens, not just at the quiet stable venues.
Why a dollar ends up shaped like this: in a young ecosystem, the busiest pools pair the dollar against the assets people trade most, bitcoin wrappers plus ether. The book follows the traffic; the feed follows the book.
Thin shelves, fast turnover
This book does not hold inventory so much as move it. Weekly volume has run at a large multiple of the standing depth, shelves emptying plus restocking many times over in a typical week; the current figures live in the specs above, refreshed as the market refreshes them.
Numbers from a book like this need their timestamps. A level read mid-flow is solid; depth read at a random moment can be a fraction of what routed through an hour earlier. Every figure on this page carries its block for exactly that reason.
Geography follows the token's design: built for the Optimism family of chains, its market gathers where that family's activity runs, with the split reported below the specs.
Which dollar this is
oUSDT is a wrapped representation of Tether's dollar, built so the Optimism family of chains can carry a canonical version of it. It is not USDT itself: the wrapper trades on its own venues at its own price, which is the entire reason a separate feed exists.
The name resolves badly almost everywhere, since listings tend to file it straight under the parent asset. On this page the subject is pinned by pool address rather than by name, an identification that never blurs.
Wrapper and parent are both measured in this catalog, each from its own book. Put the two side by side and the wrapper's fidelity becomes an observable, one more number instead of an assumption.
Who runs on this rate
Desks routing Superchain liquidity
Moving dollars through the Optimism family means touching this wrapper; its own price, not the parent's, is what fills at the venue.
Risk desks watching wrapper fidelity
oUSDT next to USDT, both feeds block-pinned, turns bridge exposure from a story into a spread.
Superchain integrations listing the token
Applications that list the wrapper get a reference read from its own venues at stated blocks.
Where the OUSDT market lives
Active OUSDT/USD pools per chain, as observed by the feed on 2026-10-27.
OUSDT in the catalog
2 pairs, each computed from its own pools with the same methodology:
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