# Deployments

All known deployments of Djed are listed in the table below, along with their implementations, user interfaces, parameters and the oracles on which they depend.

<table><thead><tr><th width="138">Deployment</th><th width="112">Implementation</th><th width="128">UIs</th><th width="270">Parameters</th><th width="293">Oracle</th></tr></thead><tbody><tr><td><a href="https://explorer.ergoplatform.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">SigmaUSD</a><br>on<br><a href="https://ergoplatform.org/en/">Ergo</a><br><br><br>Since: February 2021</td><td><a href="implementations">Agenor</a></td><td><a href="https://sigmausd.io/#/">sigmausd.io</a><br><br><a href="https://tokenjay.app/app/#ageusd">tokenjay.app/app/#ageusd</a></td><td><p>Peg: USD<br>BaseCoin: ERG</p><p></p><p>Fee: 2%<br>Minimum Reserve Ratio: 400%<br>Maximum Reserve Ratio: 800%<br><br>UI Fees: 0% - 0.25%<br><br></p></td><td><p><a href="https://explorer.ergoplatform.com/en/oracle-pool-state/ergusd">Ergo Oracle Pools</a></p><ul><li><a href="https://github.com/Emurgo/Emurgo-Research/blob/master/oracles/Oracle-Pools.md">Decentralized operation</a> open to anyone who stakes ERG into the oracle pool</li><li>Update period: ~12 minutes <br>(2 blocks)</li><li>Maximum price change per update: 0.49%, unless the price discrepancy is greater than 50%</li></ul></td></tr><tr><td>COTI's Djed<br>on<br><a href="https://cardano.org/">Cardano</a><br><br><br>Since: February 2023</td><td><a href="implementations">Minimal Djed in Plutus</a></td><td><a href="https://www.djed.xyz/">www.djed.xyz/</a></td><td><p>Peg: USD<br>BaseCoin: ADA</p><p></p><p>Fee: 1.5%<br>Minimum Reserve Ratio: 400%<br>Maximum Reserve Ratio: 800%<br><br>Operator Fee: 25 ADA<br><br>Minimum Transaction Limits:<br>* Buy SC: 1000 SC<br>* Sell SC: 200 SC<br>* Buy RC: 1000 RC<br>* Sell RC: 500 RC<br>(Enforced at the UI.)</p></td><td><ul><li>Operation by COTI</li><li>More than 6 data sources</li><li>Sources are checked every 15 minutes.</li><li>Outliers are removed if the prices they provide differ from the median of the 6 prices by more than a parameter currently set to 0.06%. If more than 3 sources remain, the median of their prices is computed, signed and made available by the operator.</li><li>The signed price remains valid for 15 minutes.</li></ul></td></tr><tr><td>Milkomeda Djed Dollar<br>on<br><a href="https://milkomeda.com/">Milkomeda-C1</a><br><br><br>Since: <br>April<br>2023</td><td><a href="implementations">Belus</a></td><td>Not available anymore, since Milkomeda stopped existing in Q4 2025.</td><td><p>Peg: USD<br>BaseCoin: mADA</p><p></p><p>Fee: 1.5%<br>Minimum Reserve Ratio: 400%<br>Maximum Reserve Ratio: 800%<br><br>UI Fee: 0%<br><br>Stable Order Treasury Fee: 0.25% initially and linearly decreasing to 0%.<br><br>Maximum Transaction Limit:<br>~ 10000 USD worth of mADA (enforced by the contract.)</p></td><td><p>MOO Oracle</p><ul><li>Operation by Milkomeda Nodes</li><li>Sources are checked every ~10 seconds</li><li>Outliers are removed if the prices they provide differ from the mean by more than 2 standard deviations. </li><li>The mean of the remaining prices is calculated.</li><li>If the new mean price differs from the last price posted on the blockchain by more than 1%, the new mean price is posted and the price is updated on the blockchain.</li></ul></td></tr><tr><td>Zephyr Stable Dollar (ZSD) on Zephyr<br><br>Since: October 2023</td><td><a href="implementations">Zephyr</a></td><td><a href="https://www.zephyrprotocol.com/">https://www.zephyrprotocol.com/</a></td><td>Peg: USD<br>BaseCoin: ZEPH<br><br>Fee: TODO<br>Minimum Reserve Ratio: 400%<br>Maximum Reserve Ratio: 800% </td><td>TODO</td></tr><tr><td>Ethereum Classic Stable Dollar</td><td><a href="implementations">Belus</a></td><td><a href="https://etc.djed.one">etc.djed.one</a><br><br>(Under construction)</td><td>Peg: USD<br>BaseCoin: ETC<br><br>Fee: 1.25%<br>Minimum Reserve Ratio: 300%<br>Maximum Reserve Ratio: 1000%<br><br>UI Fee: 0%<br><br>Stable Order Treasury Fee: 0.25% initially and linearly decreasing to 0%.<br><br>Maximum Transaction Limit:<br>~ 10000 USD worth of ETC<br>(enforced by the contract.)</td><td><p><a href="https://oracle.hebeswap.com/pricedata.html">HebeSwap Oracle</a></p><ul><li>Operation by <a href="https://hebeswap.com/">HebeSwap</a>.</li><li>Sources checked include CMC, CoinGecko and Binance.</li><li>Sources are checked every 30s by 3 oracle nodes.</li><li>Each node produces an average price from 3 sources and submits this average to the oracle contract.</li><li>A node's price is an outlier if differs by more than 0.5% from the others. Outlier prices are removed. If there are at least two prices remaining, their average is computed. Otherwise, no new price is produced.</li><li>The whole process may take up to a minute. </li><li>So, new prices are normally posted on chain every 30s, and each new price may be up to 1 minute delayed.</li></ul></td></tr></tbody></table>

If you know a deployment of Djed that is not listed above, please [contact us](mailto:contact@djed.one).

If you would like to deploy an implementation of Djed, [contact us](mailto:contact@djed.one).

{% hint style="info" %}
While all deployments above belong to the [Djed Alliance](https://docs.stability.nexus/about-us/the-djed-alliance),  appearance in the list does not mean that the deployment is associated with or endorsed by [The Stable Order](https://docs.stability.nexus/about-us/the-stable-order).
{% endhint %}