Open USD vs USDT
Exchanging USDT directly with Tether for dollars requires a verified account and at least US$100,000. OUSD uses provider onboarding. Tether’s minimum applies to dealing with the issuer, not every exchange trade or wallet transfer. For a payment integration, compare your actual access route first.
At a glance
Section titled “At a glance”| Question | Open USD (OUSD) | Tether USD₮ (USDT) |
|---|---|---|
| Issuer | Bridge Building Inc. | Tether International, S.A. de C.V., domiciled in El Salvador. |
| Native networks | Base, Ethereum, Solana and Tempo. Contracts | Multiple networks, including Ethereum, Tron and Solana. Use Tether’s USDT-specific identifiers. |
| Create tokens or redeem for dollars | Provider onboarding and eligibility checks. | Approved account, identity checks and jurisdiction eligibility; minimum US$100,000. |
| Issuer transaction fees | No Bridge mint/redemption fee; other service charges may apply. | Acquisition: 0.1%. Redemption: greater of US$1,000 or 0.1%. Fee schedule |
Tether also charges a nonrefundable verification fee of US$150 in Tether tokens, which can count toward a redemption. An exchange or payment provider sets its own fees, limits and settlement terms. Tether’s eligibility restrictions include most US persons, with limited approved exceptions; OUSD access also depends on the provider and geography.
What backs the tokens?
Section titled “What backs the tokens?”Open Standard names BlackRock, Lead Bank and BNY as OUSD reserve holders and links to monthly attestations. This comparison has not reviewed an individual OUSD attestation.
Tether’s terms describe USDT reserves as cash, cash equivalents and other assets, potentially including affiliate loan receivables. Dollar-denominated does not mean cash-only backing. Compare the current reserve disclosures and redemption rights rather than treating either token as a bank deposit; no reserves were independently audited here.
Rewards need separate terms
Section titled “Rewards need separate terms”OUSD’s supply/activity rewards require Open Standard partner registration. A USDT lending or exchange yield offer is a separate service, not part of the issuer’s 1:1 redemption mechanism. Tether’s yield explainer describes lending and liquidity provision, which add their own risks. Do not assume that holding either token makes a customer eligible for a reward program.
Before you integrate
Section titled “Before you integrate”- Confirm the exact token address and network at both ends. A common ticker or dollar target does not make tokens interchangeable in an API.
- For USDT, avoid using legacy network entries as evidence of current issuer support. Tether has ended direct issuance/redemption on Omni, Bitcoin Cash SLP, Kusama, EOS and Algorand.
- For an Ethereum smart contract, Tether notes that USDT’s transfer function does not return a Boolean and recommends a compatible safe-transfer wrapper. See its integration guidelines.
- For OUSD, choose a provider by task, then confirm that account’s supported operation and network.
This compares Open Standard’s OUSD with USDT. Origin Dollar (also OUSD) and Tether’s USAT are different assets. No payment flow was independently tested for this page.
Page reviewed: 2026-10-11 · Modified: 2026-10-11. Individual sources retain their own review dates.
Sources & review notes
Bridge identifies Bridge Building Inc. as OUSD's current issuer and advertises no mint/redemption fees.
Published: 2026-09-30 · Reviewed: 2026-10-11 · Source-backedOpen Standard lists native OUSD networks, provider onboarding and eligibility, and registration for partner rewards.
Published: Unknown (undated source) · Reviewed: 2026-10-11 · Source-backedOpen Standard names OUSD reserve holders and links to its monthly attestation portal; no individual report was reviewed here.
Published: 2026-09-30 · Reviewed: 2026-10-11 · Source-backedThe terms, updated February 26, 2026, identify Tether International in El Salvador, verified-customer redemption, jurisdiction restrictions and reserve categories.
Published: Unknown (undated source) · Reviewed: 2026-10-11 · Source-backedTether publishes a USD 100,000 direct acquisition/redemption minimum, transaction fees and a nonrefundable verification fee.
Published: Unknown (undated source) · Reviewed: 2026-10-11 · Source-backedTether lists asset-specific network identifiers, legacy-network deprecations and the Ethereum USDT transfer-return caveat.
Published: Unknown (undated source) · Reviewed: 2026-10-11 · Source-backedTether explains stablecoin yield through lending and liquidity provision, separate from holding or redeeming the token.
Published: 2021-08-04 · Reviewed: 2026-10-11 · Source-backed