> ## Documentation Index
> Fetch the complete documentation index at: https://developers.circle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Agent wallet supported blockchains

> Blockchains supported by Agent Wallets on mainnet and testnet.

Agent Wallets support the following blockchains on both mainnet and testnet,
except Arc Testnet (testnet only). Pass the blockchain identifier to the
`--chain` flag in CLI commands.

Run `circle blockchain list` to retrieve the current list.

| Blockchain  | Mainnet identifier | Testnet identifier |
| :---------- | :----------------: | :----------------: |
| Arbitrum    |        `ARB`       |    `ARB-SEPOLIA`   |
| Arc Testnet |          -         |    `ARC-TESTNET`   |
| Avalanche   |       `AVAX`       |     `AVAX-FUJI`    |
| Base        |       `BASE`       |   `BASE-SEPOLIA`   |
| Ethereum    |        `ETH`       |    `ETH-SEPOLIA`   |
| Monad       |       `MONAD`      |   `MONAD-TESTNET`  |
| Optimism    |        `OP`        |    `OP-SEPOLIA`    |
| Polygon PoS |       `MATIC`      |    `MATIC-AMOY`    |
| Unichain    |        `UNI`       |    `UNI-SEPOLIA`   |