Skip to content

DappsAtlas index · 14,224 dApps

DappsAtlas
Promethium logo

Lending · Review

Promethium Review 2026: Arbitrum Lending Optimizer

Promethium is described as an Arbitrum lending optimizer that rebalances deposits and refinances loans to seek better rates. Its current availability, fees, supported assets and security details are unclear.

By the DappsAtlas editorial team · Updated

DappsAtlas score

—/10

Not rated

Our verdict on Promethium

Promethium may interest Arbitrum users looking for a tool to manage lending deposits and loans across markets. Its stated focus on rebalancing and refinancing is useful in principle, but key details—including supported assets, fees, app availability and audit status—are not established. Verify the app and its terms before connecting a wallet or approving tokens; without those details, it is difficult to assess whether the optimizer is suitable for your funds.

Score breakdown

How Promethium 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 Promethium?

Promethium is described as a lending optimizer on Arbitrum. Its stated goal is to seek better rates by rebalancing deposits and refinancing loans, with additional tools for managing deposits, loans and liquidity-mining rewards.

The current app, supported assets, lending markets and operating details are not confirmed. Treat the product description as a starting point, not a complete guide to how the protocol works.

How Promethium works

Promethium is described as a lending optimizer. In general, a lending optimizer monitors rates across supported markets and may move deposits to seek better returns. Promethium's specific markets, supported assets and rebalancing rules are not published here.

3 features

Key features

01

Deposit optimization

The protocol is described as searching for better lending rates and rebalancing deposits.

02

Loan refinancing

Promethium is also described as refinancing loans, though supported markets and the refinancing process are not specified.

03

DeFi management toolkit

A toolkit for managing deposits, loans and liquidity-mining rewards is mentioned, but its specific tools are not detailed.

Pros and cons

What we like

  • Targets rate optimization for lending deposits.
  • The description includes both deposit management and loan refinancing.
  • Listed on Arbitrum.

Watch out for

  • Promethium's current availability and app details are not confirmed.
  • Fees and supported assets are not published.
  • No audits are listed.
  • The protocol's rebalancing and refinancing rules are not explained in detail.

Promethium fees

Promethium's fees are not published. Check the project interface for any protocol charges, transaction costs and applicable lending-market fees before approving a transaction.

Is Promethium safe?

No audits are listed. Lending optimizers can involve smart-contract risk, token-approval risk and risks from the underlying lending markets; moving funds between markets can also expose users to changing rates and liquidity conditions. Promethium's custody model, contract addresses, audit details and incident history are not established.

4 steps

How to get started with Promethium

  1. 1

    Confirm that Promethium's app is currently available and that you have the correct project.

  2. 2

    Connect an Arbitrum-compatible wallet only after verifying the app and its permissions.

  3. 3

    Review the supported assets, lending markets, fees and rebalancing rules in the interface.

  4. 4

    Assess the smart-contract and lending-market risks before depositing or authorizing tokens.

Who Promethium is for

Promethium may suit DeFi users on Arbitrum who want lending positions managed for them, provided they can verify the app, markets and contract risks before depositing. Users who need clear fee, audit or strategy disclosures should wait until those details can be confirmed.

Promethium FAQs

What is Promethium?

Promethium is described as a lending optimizer on Arbitrum. It aims to seek better rates by rebalancing deposits and refinancing loans.

Which network does Promethium use?

Promethium is listed on Arbitrum. The supported tokens and lending markets are not specified, so check the app before considering a deposit.

Is Promethium safe to use?

No fee schedule or audits are listed. Check the project interface for fees and risk disclosures, and do not deposit funds unless you can verify the app and understand the contract risks.

Compare

Promethium alternatives

All alternatives
Morpho Blue logoScore 8.0 out of 10

Morpho Blue is a permissionless lending primitive with about $11.4 billion in TVL on DefiLlama, accessed mainly through curated vaults.

TVL $10.9B−0.5%Ethereum · Base · Robinhood Chain +41
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 $15.8B+5.1%Ethereum · Base · Arbitrum +18
Dolomite logo

Dolomite

Lending

Score 7.8 out of 10

Dolomite is a multi-chain DeFi money market for lending, borrowing and leveraged strategies across 1,000+ assets, with its own DOLO token.

TVL $142M−15.1%Ethereum · Arbitrum · Berachain +4
Compound V3 logoScore 8.0 out of 10

Compound V3 is a lending protocol on Ethereum and nine other chains where users supply a base asset for yield or borrow it against collateral.

TVL $1.26B−2.3%Ethereum · Arbitrum · Base +7
Venus Core Pool logoScore 7.6 out of 10

Venus Core Pool is a multi-chain DeFi money market where users supply crypto to earn interest or borrow against collateral, with about $1.18B in TVL.

TVL $1.08B−6.6%BNB Chain · Ethereum · Arbitrum +5
Fluid Lending logoScore 7.5 out of 10

Fluid is an Instadapp DeFi protocol combining lending and a DEX on one liquidity layer, for users who want yield, isolated-vault borrowing and swaps.

TVL $619M+1.8%Ethereum · Arbitrum · Plasma +2

Same category

More Lending dApps

Lending rankings
SparkLend logo

SparkLend

Lending

Score 8.0 out of 10

SparkLend is a stablecoin lending market on Ethereum and Gnosis with governance-set rates, backed by Sky's Liquidity Layer, for borrowers and savers.

TVL $5.04B−0.8%Ethereum · xDai
Euler V2 logo

Euler V2

Lending

Score 8.0 out of 10

Euler V2 is a modular DeFi lending protocol for lenders, borrowers and market curators, with about $268M TVL across 16 chains.

TVL $283M+5.5%Monad · Ethereum · Base +13

Morpho

Lending

Score 8.0 out of 10

Morpho is a decentralized lending protocol with isolated markets, curated vaults and fixed-rate loans for crypto lenders, borrowers and developers.

Ethereum · Base
Kamino Finance logoScore 7.9 out of 10

Kamino Finance is a Solana DeFi protocol offering lending, automated liquidity vaults and leverage tools for users seeking on-chain yield.

Solana
Aave V4 logo

Aave V4

Lending

Score 7.8 out of 10

Aave V4 is a modular, non-custodial lending protocol using a hub-and-spoke design, for users who want to earn on or borrow against crypto.

TVL $808M+20.6%Ethereum · Arc · Avalanche +1
Kamino logo

Kamino

Lending

Score 7.6 out of 10

Kamino is a Solana DeFi protocol with a lending market, automated concentrated liquidity vaults and an intents-based swap, for yield-seeking on-chain users.

Solana

Same chain

More on Arbitrum

Arbitrum rankings
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 $1.18B+3.6%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 $1.52B−1.8%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 $344M−3.5%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+0.1%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 $17.9B+10.6%Polygon · Ethereum · ApeChain +76
Uniswap V2 logoScore 8.0 out of 10

Uniswap V2 is a non-custodial automated market maker DEX on 17 chains for token swaps and liquidity provision, with about $938M TVL.

TVL $870M−3.6%Ethereum · Base · Polygon +14

How we checked

Sources

  1. 1.defillama.com/protocol/promethium

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