Skip to content

DappsAtlas index · 14,224 dApps

DappsAtlas

Sperax Review 2026: USDs on Arbitrum

Sperax is an Arbitrum DeFi protocol associated with USDs, a fully collateralized stablecoin described as generating yield automatically, and the SPA token. Key details about its mechanics, fees, and security remain unclear.

By the DappsAtlas editorial team · Updated

DappsAtlas score

—/10

Not rated

Our verdict on Sperax

Sperax may interest readers looking into Arbitrum stablecoins or SPA staking. Its main stated offering is USDs, described as fully collateralized and automatically yield-generating, alongside the SPA token. That gives a basic picture of the protocol, but not enough detail to assess how collateral is managed, where yield comes from, or what staking involves. Fees, audit status, and custody arrangements are also unclear. Treat USDs's collateral and yield claims as starting points for further research, not as a guarantee of safety or returns.

Score breakdown

How Sperax scores

Security
n/a
Ease of use
n/a
Fees
n/a
Features
n/a

Scores run from 0 to 10 and are based only on facts we could verify. Where information was missing we mark the score n/a rather than guess.

What is Sperax?

Sperax is an Arbitrum DeFi protocol associated with USDs, described as a fully collateralized stablecoin with automatic yield generation. SPA is its token, and staking is mentioned as a token use.

The collateral, yield mechanism, fees, audit status, and staking terms are unclear. Verify current documentation and protocol status before considering an interaction.

How Sperax works

Sperax is described as a DeFi protocol on Arbitrum that issues USDs, a stablecoin presented as fully collateralized and capable of generating yield automatically. The exact collateral mix, how yield is produced, and how users access or claim it are not established.

SPA is Sperax's token, and staking is mentioned in one project description. The staking process, reward source, and relationship between SPA and USDs are unclear.

3 features

Key features

01

Auto-yield USDs

USDs is described as a fully collateralized stablecoin that generates yield automatically; its collateral and yield mechanics are unclear.

02

Arbitrum protocol

Sperax is described as operating on Arbitrum, an Ethereum layer-2 network.

03

SPA staking

SPA staking is mentioned, but staking conditions and reward details are not established.

Pros and cons

What we like

  • USDs is described as fully collateralized.
  • The protocol is associated with Arbitrum.
  • SPA staking is mentioned as a token use.

Watch out for

  • Sperax's audit status and custody arrangements are unclear.
  • Fees and details of USDs's collateral and yield mechanisms are not established.
  • The project's current interface and operating status are unconfirmed.

Sperax fees

Fees are not published. Check any transaction-level charges in the wallet or protocol interface before approving a transaction.

Is Sperax safe?

The protocol's audit status, custody arrangements, and incident history are unclear. A fully collateralized label does not by itself establish the quality or liquidity of collateral, or guarantee that a stablecoin will hold its peg. Review current disclosures and understand smart-contract, collateral, and stablecoin risks before committing funds.

4 steps

How to get started with Sperax

  1. 1

    Find Sperax's official documentation and verify that the protocol is currently operating before connecting a wallet.

  2. 2

    Confirm that your wallet is set to Arbitrum before considering any interaction.

  3. 3

    Review USDs collateral and yield disclosures, as well as any SPA staking terms, before committing funds.

  4. 4

    Check transaction costs and carefully review wallet approval requests before signing.

Who Sperax is for

Sperax may suit readers researching Arbitrum stablecoins and SPA, particularly those willing to examine collateral and yield disclosures before acting. It is a poor fit for anyone who needs clear, readily verifiable information about fees, audits, or staking terms before using a protocol.

Sperax FAQs

What is Sperax USD (USDs)?

USDs is described as a fully collateralized stablecoin from the Sperax protocol on Arbitrum, with yield generated automatically. The specific collateral and yield mechanisms are not established.

What is the SPA token used for?

SPA is Sperax's token. One source says SPA can be staked, but details of staking terms and rewards are not established.

Is Sperax safe to use?

Audit and custody details are unclear. Review the protocol's current documentation and check that using crypto and stablecoins is appropriate for your risk tolerance before interacting.

Compare

Sperax alternatives

All alternatives
Ethena USDtb logo

Ethena USDtb

Stablecoin Issuer

Score 7.3 out of 10

Ethena USDtb is a USD stablecoin from Ethena Labs backed by tokenized treasuries, including BlackRock's BUIDL, aimed at DeFi users and institutions.

TVL $417M−14.0%Ethereum
M0 logo

M0

Stablecoin Issuer

Score 7.0 out of 10

M0 is modular stablecoin infrastructure that lets businesses design, distribute and issue custom stablecoins, with about $224M TVL on Ethereum.

TVL $248M+14.7%Ethereum
JupUSD logo

JupUSD

Stablecoin Issuer

Score 5.2 out of 10

JupUSD is a Solana-native, reserve-backed stablecoin built by Jupiter with Ethena for users seeking a token pegged to the U.S. dollar.

TVL $42.5M+6.8%Solana
Frax USD logo

Frax USD

Stablecoin Issuer

Not rated yet

Frax USD (frxUSD) is a fully collateralized stablecoin from Frax Finance, backed by off-chain custodied cash equivalents, for Ethereum DeFi users.

TVL $95.9M−2.1%Ethereum
Flying Tulip ftUSD logo

Flying Tulip ftUSD

Stablecoin Issuer

Score 6.3 out of 10

Flying Tulip ftUSD is a USDC and USDT-backed stablecoin that earns Aave yield, with a staked sftUSD form paying FT rewards, for DeFi yield seekers.

TVL $5.79M+4.5%Ethereum · Sonic · BNB Chain
BabelFish logo

BabelFish

Stablecoin Issuer

Score 4.5 out of 10

BabelFish is a DAO-run protocol on Rootstock that issues XUSD, a stablecoin it says is backed 1:1 by a basket of stablecoins, for experienced DeFi users.

TVL $318K−74.2%Rsk

Same category

More Stablecoin Issuers

Stablecoin Issuer rankings
Agora logo

Agora

Stablecoin Issuer

Score 6.4 out of 10

Agora is a US fintech issuing AUSD, a full-reserve ERC-20 dollar stablecoin for institutions, with white-label stablecoin and API services.

Ethereum

Ethena Usde

Stablecoin Issuer

Score 6.0 out of 10

Ethena USDe is an Ethereum-based synthetic dollar stablecoin that aims to hold near $1 using hedged crypto collateral, for DeFi users.

Ethereum
Bastion Protocol logo

Bastion Protocol

Stablecoin Issuer

Score 6.0 out of 10

Bastion provides businesses with APIs for branded stablecoin issuance, custodial wallets, transfers, and fiat on- and off-ramps.

Base · Solana
Felix USDhl logo

Felix USDhl

Stablecoin Issuer

Score 5.8 out of 10

Felix USDhl is a fiat-style stablecoin built for the Hyperliquid ecosystem, aimed at HIP-3 markets, FX and payments.

TVL $356K+0.1%Hyperliquid L1 · Ethereum
Num Finance logo

Num Finance

Stablecoin Issuer

Score 5.8 out of 10

Num Finance describes local-currency stablecoins and tokenized investments for institutions, fintechs and exchanges.

Dai

Stablecoin Issuer

Score 5.8 out of 10

Dai is an Ethereum stablecoin designed to track the U.S. dollar, for users seeking collateral-backed onchain dollar exposure.

Ethereum

Same chain

More on Arbitrum

Arbitrum rankings
Aave V3 logo

Aave V3

Lending

Score 8.6 out of 10

Aave V3 is a non-custodial DeFi lending protocol on 21 chains where users earn interest on deposits or borrow against collateral.

TVL $15.1B+1.9%Ethereum · Base · Arbitrum +18
Uniswap V4 logoScore 8.5 out of 10

Uniswap V4 is the latest Uniswap DEX version with hooks and concentrated liquidity, running on 22 chains for self-custody token swaps and liquidity provision.

TVL $1.14B−2.9%Ethereum · Robinhood Chain · Base +19
Uniswap V3 logoScore 8.4 out of 10

Uniswap V3 is a non-custodial decentralized exchange protocol for token swaps and concentrated liquidity provision across 40+ chains.

TVL $1.51B−3.7%Ethereum · Base · Arbitrum +38
Defi Saver Asset Management logoScore 8.1 out of 10

DeFi Saver is a non-custodial tool for managing and automating leveraged lending positions across major DeFi protocols on Ethereum and layer-2 networks.

TVL $342M−4.7%Ethereum · Arbitrum · Optimism +1
OKX logo

OKX

Centralized Exchanges

Score 8.0 out of 10

OKX is a major centralized crypto exchange for spot and derivatives trading, earn products and a Web3 wallet, with its own OKB token.

TVL $28.4B−0.7%Ethereum · Bitcoin · X Layer +21
LayerZero V2 logoScore 8.0 out of 10

LayerZero V2 is a cross-chain messaging protocol and bridge infrastructure for developers and asset issuers, connecting dozens of blockchains.

TVL $16.7B+8.9%Polygon · Ethereum · ApeChain +76

How we checked

Sources

No public sources were recorded for this review.

Last updated . Spotted an error? Tell us and we will correct it.