Sonic Introduces USSD Native Stablecoin to Boost DeFi Liquidity Across Its Network

Highlights:

• The Layer-1 blockchain launched the USSD stablecoin for trading and payments.
• The stablecoin is backed by tokenized U.S. Treasury assets to support transparent and reliable reserves.
• Users can mint the token from multiple blockchains and move liquidity into the Sonic network more easily.

Sonic Labs, an EVM Layer-1 blockchain focused on high transaction throughput, has introduced the USSD stablecoin. The company revealed the token on March 9 while expanding financial tools on its network. The asset will function as a dollar-pegged token for applications built on Sonic. Developers plan to use it for trading, lending, payments, and settlement across decentralized finance platforms.

⚡️NEW: Sonic Labs launches USSD stablecoin, backed by US Treasury assets from BlackRock, Superstate, and WisdomTree. pic.twitter.com/l2qaEqJTIA

— Coin Bureau (@coinbureau) March 10, 2026

The project designed the token to serve as a common dollar reference across its ecosystem. Many DeFi applications require stable assets for pricing and settlement. Sonic expects the token to fill that role inside its network. Users will be able to move a stable asset across several applications without switching tokens.

Samuel Harcourt, a core contributor to Sonic, described the token as part of the network’s infrastructure. He said the stablecoin connects institutional yield opportunities with the base layer of the blockchain. The design also supports financial incentives inside the ecosystem. Developers can build applications around a stable liquidity source.

Introducing USSD, the US Sonic Dollar.

A network-native USD stablecoin built to be the stable liquidity layer across the Sonic ecosystem and a core piece of our vertical integration initiative.

Built on @fraxfinance's infrastructure. Backed 1:1 by U.S. Treasury bills from… pic.twitter.com/4S0RZQQanm

— Sonic (@SonicLabs) March 9, 2026

Treasury Backing and Frax Infrastructure Support the USSD Stablecoin

The USSD stablecoin maintains a one-to-one value with the U.S. dollar. Reserve assets held by regulated custodians support the token. The reserves are linked to major financial institutions such as BlackRock, WisdomTree, and Superstate, which will provide the Treasury exposure through tokenized funds.

Sonic Labs structured the token using infrastructure developed by Frax Finance. The project runs on Frax’s GENIUS-compatible frxUSD system. This framework allows companies to launch stablecoins with a standardized backend architecture. Users can mint the stablecoin on the Sonic network. The platform does not charge minting fees. The supported assets include USDC, USDT, PYUSD, and tokenized Treasury products. Regulated custodians will hold the reserves linked to these deposits.

Cross-Chain Access and Liquidity Plans as Sonic Faces TVL Decline

The stablecoin launches with cross-chain minting across more than ten blockchain networks. Sonic uses LayerZero infrastructure to move liquidity between chains. Blockchain users can deposit crypto assets on another blockchain and receive the stablecoin on Sonic. This process allows capital to move into the ecosystem more easily.

The launch of the USSD stablecoin comes as activity on the Sonic network has slowed. The blockchain reached $1billion in total value locked within 66 days after launch. The current data from DeFiLlama shows that its total value locked is near $34 million.

Other companies are also working on similar payment infrastructure. Crossmint recently partnered with Western Union to support the rollout of the USDPT stablecoin on the Solana blockchain. The partnership links Crossmint wallet technology with Western Union’s payout network. Developers using Crossmint tools will be able to route digital dollar transfers through blockchain networks and existing payment channels.

@WesternUnion launches USDPT stablecoin.@Crossmint has partnered with Western Union to launch the USDPT stablecoin and the Digital Asset Network on Solana.

This will allow fintech platforms to move funds using USDPT and connect to Western Union’s global payout network.

Users… pic.twitter.com/KfXz3F6Ovy

— TU Airdrop Daily (@daily_tu69577) March 5, 2026

SoFi Technologies and Mastercard have also introduced a stablecoin called SoFiUSD. The companies plan to use the token for faster settlement within Mastercard’s global payment network. The project will focus on payments between businesses and cross-border transfers. The stablecoin aims to shorten the time required to settle these transactions.