# Aleo

Live on mainnet · [Bridges and cross-chain](https://builder.registrai.cc/ecosystem/bridges/) · also [Stablecoin issuers](https://builder.registrai.cc/ecosystem/stablecoin-issuers/) · Last reviewed 2026-10-31

Aleo is a bridge or cross-chain protocol on Arc, Circle's blockchain, live on Arc mainnet since 16 September 2026. Privacy layer-1 where USDCx is minted against USDC deposited in Circle xReserve, including the xReserve contract on Arc. Circle's xReserve docs list Arc mainnet as a source chain since 2026-09-16 and Aleo as a mainnet remote chain.

Also known as Aleo (via xReserve), USDCx on Aleo.

[Website](https://aleo.org/) · [X @AleoHQ](https://x.com/AleoHQ) · [Docs](https://developer.aleo.org/)

## Status

- Live on Arc mainnet since 2026-09-16

Evidence: [Circle xReserve release notes 2026: Arc mainnet added as source chain](https://developers.circle.com/release-notes/xreserve-2026) · [xReserve supported blockchains (Arc mainnet source, Aleo mainnet remote)](https://developers.circle.com/xreserve/references/supported-blockchains-and-domains)

## Questions

**What is Aleo on Arc?**: Aleo is listed under Bridges and cross-chain on Arc, Circle's blockchain. Privacy layer-1 where USDCx is minted against USDC deposited in Circle xReserve, including the xReserve contract on Arc.

**Is Aleo live on Arc mainnet?**: Yes. Aleo has been live on Arc mainnet since 2026-09-16. [Evidence](https://developers.circle.com/release-notes/xreserve-2026)

**When did Aleo launch on Arc?**: Aleo went live on Arc mainnet on 2026-09-16. Source: Circle xReserve release notes 2026: Arc mainnet added as source chain. [Source](https://developers.circle.com/release-notes/xreserve-2026)

## Sources

1. [Arc ecosystem directory: Aleo (via xReserve)](https://www.arc.io/ecosystem/aleo-via-xreserve) (2026-10-31)
2. [Circle xReserve release notes 2026](https://developers.circle.com/release-notes/xreserve-2026) (2026-09-16)
3. [xReserve supported blockchains and domains](https://developers.circle.com/xreserve/references/supported-blockchains-and-domains)
4. [Aleo and Circle launch USDCx](https://aleo.org/usdcx)
5. [Circle blog: USDCx on Aleo testnet via Circle xReserve](https://www.circle.com/blog/usdcx-on-aleo-testnet-via-circle-xreserve) (2025-12-09)
6. [Arc mainnet RPC (eth\_getCode on xReserve 0x8888888199b2df864bf678259607d6d5ebb4e3ce)](https://rpc.mainnet.arc.io) (2026-10-31)

[Corrected 1 time · latest 2026-10-31](https://builder.registrai.cc/ecosystem/corrections/#aleo)

[Suggest a correction](https://builder.registrai.cc/ecosystem/aleo/correct/) · [How we publish](https://builder.registrai.cc/how-we-publish/) · [Arc ecosystem](https://builder.registrai.cc/ecosystem/)

Source: https://builder.registrai.cc/ecosystem/aleo/ · Registrai, builder.registrai.cc, CC BY 4.0