Encyclopedia Stablecoins · Entry 44
DAI and USDS: connected tokens in the Sky system
In this article
At a glance
Key facts
| Fact | Detail | Source |
|---|---|---|
| Converter | The documented DAI↔USDS route converts 1:1 with no route fee; network gas is separate. | [1] |
| Savings token | sUSDS represents a savings vault position, not plain USDS. | [2] |
| Backing scope | The June 2026 Sky description includes multiple collateral and investment categories. | [4] |
A token conversion, not a dollar withdrawal
Sky’s USDS developer documentation accessed on 2 October 2026 describes a DAI-USDS converter that works in both directions at a fixed 1:1 ratio without a converter fee. It also describes USDS as an ERC-20 token using an upgradeable proxy design. Those facts concern the documented route and implementation, not every third-party trading pool.
Converting 100 DAI through that route yields 100 USDS before separately paid transaction costs. It changes the token held, not the wallet’s bank balance. Selling either token in a market can produce a different price, and using a bridge creates additional steps.
USDS and sUSDS answer different balance questions
Sky documents sUSDS as an ERC-4626 savings implementation. A user deposits USDS and receives shares; the share-to-asset conversion describes the underlying USDS represented. Plain USDS itself is not the savings share and should not be assigned the savings rate in an article or comparison table.
For example, 50 shares representing 1.02 USDS each correspond to 51 USDS before relevant conditions. This is illustrative arithmetic, not a live exchange rate. The savings rate and wider parameters can change, so a current product description needs a dated parameter check rather than a permanent yield claim.
Direct answers
Questions people ask
Do I have to call DAI and USDS the same token?
No. They are distinct tokens with a documented conversion relationship. Preserve their names and contract identities.
Does USDS automatically earn the savings rate in a wallet?
No. Sky distinguishes plain USDS from the separate sUSDS savings implementation.
Inspect the evidence
The answer and key facts have stable claim links. These records retain the scope and qualification when reused.
DAI and USDS are distinct dollar-targeting tokens connected by Sky’s documented 1:1 bidirectional converter. USDS uses an upgradeable token design; sUSDS is a separate savings wrapper for USDS. Their shared protocol context includes collateral, governance and external dependencies, and a conversion to USDS is not a bank-dollar redemption.
Scope: Stablecoins · data through 2026-10-02. Verification: verified · 2026-10-02T15:09:00.630Z.
Link to this claimConverter: The documented DAI↔USDS route converts 1:1 with no route fee; network gas is separate.
Scope: Stablecoins · data through 2026-10-02. Verification: verified · 2026-10-02T15:09:00.630Z.
Link to this claimSavings token: sUSDS represents a savings vault position, not plain USDS.
Scope: Stablecoins · data through 2026-10-02. Verification: verified · 2026-10-02T15:09:00.630Z.
Link to this claimBacking scope: The June 2026 Sky description includes multiple collateral and investment categories.
Scope: Stablecoins · data through 2026-10-02. Verification: verified · 2026-10-02T15:09:00.630Z.
Link to this claimRevision history
- — First publication after primary-source research and independent automated verification.
Source register
Sources and references
Retrieval dates and locators are recorded individually.- USDS and DAI USDS ConverterSky Protocol
1:1 bidirectional conversion, no route fee, upgradeable USDS token.
Locator: Overview; DAI USDS Converter · Version / scope: Response SHA-256 3a95b542120de92772fc69193e03ada9c3d397c933276d6dac3fbe7b75254e2c · Retrieved: 2026-10-02T14:38:41.077417+00:00Open source - sUSDS: Savings USDSSky Protocol
ERC-4626 savings wrapper distinct from USDS.
Locator: Overview · Version / scope: Response SHA-256 e0f935001eff236fd9c0eab6b964e2e3a35efb98b5a1c24c17d40267ec586b4a · Retrieved: 2026-10-02T14:38:42.003903+00:00Open source - Vat: Core AccountingSky Protocol
Collateralized issuance, debt accounting, oracle and governance dependencies.
Locator: Vault Management; Failure Modes; Accounting · Version / scope: Response SHA-256 78db21089399df6c25df458f98d0129333f3e72138de185b96610fe82f0a74dd · Retrieved: 2026-10-02T14:38:38.888971+00:00Open source - What is USDS?Sky.money / Skybase International
Dated 2026-06-12 description of diversified collateral and separate savings product; marketing assertions not independently audited.
Locator: How USDS holds its peg; Protocol Collateral; Does USDS generate yield? · Version / scope: Response SHA-256 3726cdd7e7b5e102192c9e0df4f87d2c7fc6dda8b0259152430012681ef85c1d · Retrieved: 2026-10-02T14:38:42.654541+00:00Open source - Collateral LiquidationSky Protocol
Liquidation via collateral sales, parameters and failure modes.
Locator: Liquidation 2.0 module; Auctions · Version / scope: Response SHA-256 87c3e3e29ccffdca8cf63e766c29458e2bd58033852894bb347f9f7fdae53a5d · Retrieved: 2026-10-02T14:38:38.896399+00:00Open source
Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.
Editorial method and correctionsDegrees of Satoshi editorial project. “DAI and USDS: connected tokens in the Sky system.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/dai-and-usds/