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Arkadiko Review 2026: STX-Backed USDA Vaults on Stacks

Arkadiko is a CDP-style protocol on Stacks where users lock STX to mint the USDA stablecoin. Its TVL is now small, so treat it as a niche, higher-risk venue.

Stacks

By the DappsAtlas editorial team · Updated Nov 4, 2026

DappsAtlas score

5.8/10

Mixed

Visit Arkadiko

Our verdict on Arkadiko

5.8/10

Arkadiko suits users who already hold STX and want to borrow a dollar stablecoin against it without selling, or who want to explore Stacks DeFi. Its strength is a complete, non-custodial toolkit of vaults, swap, staking and a liquidation pool. The main caveat is scale and assurance: TVL is only around $259,000, DefiLlama lists no audits, and the vault design carries liquidation risk. Size positions as you would for a small, higher-risk protocol and read the audit documents first.

Score breakdown

How Arkadiko scores

Security: 5.0/10
Ease of use: 6.5/10
Fees: n/a
Features: 6.5/10

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 Arkadiko?

Arkadiko is a decentralized, non-custodial protocol on Stacks, the network that settles to Bitcoin. Users lock STX as collateral and mint USDA, a dollar-pegged stablecoin. The project describes its aim as bringing DeFi to Bitcoin.

The product suite includes vaults, staking, a swap, a USDA liquidation pool, an oracle and an analytics page. DIKO is the governance and utility token. DefiLlama has tracked the protocol since December 2021 under the CDP category.

Current scale is modest. DefiLlama shows about $259,000 in TVL, up 10.9% over seven days, and lists no audits. That makes it a small, niche protocol rather than a major stablecoin venue.

How Arkadiko works

Arkadiko is a collateralized debt position (CDP) protocol. A user deposits STX into a vault and mints USDA against it. Because the vault is over-collateralized, the STX locked is worth more than the USDA borrowed. The user can later repay the USDA to unlock the collateral.

If the STX price falls and a vault becomes undercollateralized, it can be liquidated. The homepage describes a USDA Liquidation Pool that covers these positions, with participants earning rewards. An oracle supplies the price data that vaults and liquidations use.

Beyond minting, the protocol has a swap for STX, DIKO and USDA, plus staking where users earn DIKO rewards. DIKO holders can also vote on protocol decisions.

8 features

Key features

STX-backed vaults

Users lock STX as collateral to mint USDA without selling their holdings. Positions are over-collateralized and can be repaid or adjusted.

USDA stablecoin

USDA is a dollar-pegged stablecoin minted from collateral. It is used in other Stacks DeFi apps such as Zest Protocol, Bitflow and ALEX, according to the homepage.

Staking rewards

Users can stake liquidity provider tokens, DIKO and USDA to earn DIKO rewards.

Swap and liquidity pools

A swap feature lets users trade assets such as DIKO, STX and USDA, or provide liquidity to earn fees.

USDA Liquidation Pool

Users can supply liquidity to a pool that covers undercollateralized positions and earn rewards in return.

Price oracle

A built-in oracle supplies price data for STX and USDA, which vaults and liquidations rely on.

DIKO governance

DIKO holders can vote on protocol decisions and upgrades.

Public analytics

An analytics page shows TVL across vaults and swap pools, user balances and other protocol metrics.

Pros and cons

What we like

Non-custodial design: users keep control of collateral through vaults rather than a company
Lets STX holders borrow USDA without selling their STX
Broad product set in one app: vaults, swap, staking and a liquidation pool
Open governance via DIKO voting, with an open-source codebase and bug bounty listed
Public analytics page and documentation, including a how-to guide on earning yield

Watch out for

TVL is very small at about $259,000 per DefiLlama, which suggests thin liquidity and limited usage
DefiLlama lists no audits, and the homepage only shows a 'Security Audits' heading without naming auditors or dates
Collateral is mainly STX, so USDA's backing depends on one volatile asset
The homepage shows $0 for TVL, circulating USDA and holders, so live stats could not be confirmed from the page text
Smart-contract, oracle and liquidation risks apply, and USDA's peg is not guaranteed
Activity and development momentum are not documented publicly; the most recent dated resource is from March 2024

Arkadiko fees

The project does not publish a fee schedule. The homepage says liquidity providers earn swap fees, but does not give the rate. Vault stability fees, liquidation penalties and swap fees would be shown in the app and documentation.

On Stacks, users also pay network transaction fees in STX for each action. Check the docs and the app before opening a vault or providing liquidity.

Is Arkadiko safe?

DefiLlama lists zero audits for Arkadiko. The homepage has a Security Audits section and a bug bounty link, but the project does not say who audited the contracts or when. Review those materials directly before depositing.

Main risks are smart-contract bugs, oracle errors, STX price drops causing liquidation, and USDA losing its peg. The protocol is non-custodial, so there is no company to recover funds if something goes wrong. Public sources mention no hacks or incidents. Check legal and tax rules in your own country.

6 steps

How to get started with Arkadiko

1
Read the documentation, FAQ and any audit material first, and confirm the app address from the official website.
2
Set up a Stacks-compatible wallet and fund it with STX.
3
Launch the app from the official site and connect the wallet, accepting the terms of service.
4
Review the vault collateral ratio, fees and liquidation terms before minting USDA.
5
Start with a small amount, and keep a safe buffer above the liquidation threshold.
6
Optionally stake USDA, DIKO or LP tokens, or add liquidity, after checking the rewards and risks.

Open Arkadiko

Who Arkadiko is for

Arkadiko fits STX holders comfortable with CDP mechanics who want USDA liquidity on Stacks, and DeFi users exploring Bitcoin-adjacent ecosystems. It is not suited to beginners who cannot monitor collateral ratios, or anyone needing deep liquidity and a long audit trail.

Arkadiko FAQs

What is Arkadiko?

Arkadiko is a decentralized, non-custodial liquidity protocol on Stacks. Users lock collateral, mainly STX, to mint a dollar-pegged stablecoin called USDA, and can also swap, stake and provide liquidity.

What is USDA?

USDA is a dollar-pegged stablecoin built on Stacks. It is minted against over-collateralized STX in vaults. Its peg relies on collateral, liquidations and oracle prices, not on a fiat reserve.

Can I be liquidated on Arkadiko?

Yes. If the value of the collateral in a vault falls too far relative to the USDA borrowed, the position can be liquidated. The homepage lists a USDA Liquidation Pool that covers undercollateralized positions. Check the docs for the exact ratios before borrowing.

What is the DIKO token used for?

DIKO is the protocol's governance and utility token. According to the homepage, holders can stake it for rewards and vote on protocol decisions.

Is Arkadiko audited?

DefiLlama lists no audits for Arkadiko. The homepage has a Security Audits section and a bug bounty link, but the project does not name auditors or dates. Read the audit documents in the docs yourself before depositing funds.

Which blockchain does Arkadiko use?

Arkadiko runs on Stacks, a network that settles to Bitcoin. You need a Stacks-compatible wallet and STX to open a vault.

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