> For the complete documentation index, see [llms.txt](https://docs.astralbeam.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.astralbeam.io/using-astralbeam/supported-networks.md).

# Supported Networks

AstralBeam currently supports bridging between Casper Network and multiple EVM-compatible chains.

***

## Production Networks

> **Note:** Production deployment is coming soon. Current deployments are on testnets only.

***

## Testnet Networks

### Active Networks

The following networks are currently active and processing bridge transactions.

### Casper Testnet

| Property        | Value                                                                    |
| --------------- | ------------------------------------------------------------------------ |
| Network Name    | Casper Testnet                                                           |
| Chain Name      | `casper-test`                                                            |
| Native Currency | CSPR                                                                     |
| Block Time      | \~8 seconds                                                              |
| Finality        | Instant                                                                  |
| Node RPC        | `https://node.testnet.casper.network/rpc`                                |
| Explorer        | [testnet.cspr.live](https://testnet.cspr.live)                           |
| Faucet          | [testnet.cspr.live/tools/faucet](https://testnet.cspr.live/tools/faucet) |

**Bridge Contracts:**

| Contract     | Hash                                                                    |
| ------------ | ----------------------------------------------------------------------- |
| TokenFactory | `hash-bf16ba78a7ecfb0e64756aa8468251110f29639f38ccaf9bdb01b6f38a15c2f2` |
| EthClient    | `hash-fa183fe46e92b65da88265deb0d48c7ae44bf44d7917f19875f4457321497aa2` |

***

### Ethereum Sepolia

| Property        | Value                                                |
| --------------- | ---------------------------------------------------- |
| Network Name    | Sepolia                                              |
| Chain ID        | `11155111`                                           |
| Native Currency | SepoliaETH                                           |
| Block Time      | \~12 seconds                                         |
| Finality Wait   | 64 blocks (\~13 minutes)                             |
| RPC Endpoints   | Infura, Alchemy, public RPCs                         |
| Explorer        | [sepolia.etherscan.io](https://sepolia.etherscan.io) |
| Faucet          | [sepoliafaucet.com](https://sepoliafaucet.com)       |

**Bridge Contracts:**

| Contract                    | Address                                      |
| --------------------------- | -------------------------------------------- |
| MultiSigERC20Locker (Proxy) | `0x6aaea12cF566C9fddbC7082c15d38F1447a57D10` |
| Implementation (V6)         | `0xd1780F8d1aD09C52077B3fE2abE4E1751836ee28` |

**Supported Tokens:**

| Token | Address                                      | Decimals |
| ----- | -------------------------------------------- | -------- |
| USDC  | `0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238` | 6        |
| WETH  | `0xfFf9976782d46CC05630D1f6eBAb18b2324d6B14` | 18       |
| LINK  | `0x779877A7B0D9E8603169DdbD7836e478b4624789` | 18       |

**Wallet Configuration:**

```json
{
  "chainId": "0xaa36a7",
  "chainName": "Sepolia",
  "nativeCurrency": {
    "name": "SepoliaETH",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": ["https://sepolia.infura.io/v3/YOUR_KEY"],
  "blockExplorerUrls": ["https://sepolia.etherscan.io"]
}
```

***

### Base Sepolia

| Property        | Value                                                |
| --------------- | ---------------------------------------------------- |
| Network Name    | Base Sepolia                                         |
| Chain ID        | `84532`                                              |
| Native Currency | ETH                                                  |
| Block Time      | \~2 seconds                                          |
| Finality Wait   | 64 blocks (\~2 minutes)                              |
| RPC Endpoints   | [docs.base.org](https://docs.base.org)               |
| Explorer        | [sepolia.basescan.org](https://sepolia.basescan.org) |
| Faucet          | Base Bridge from Sepolia                             |

**Bridge Contracts:**

| Contract                    | Address                                      |
| --------------------------- | -------------------------------------------- |
| MultiSigERC20Locker (Proxy) | `0x5208f75aEa0c2AeC5f71494B5f1B7DCF07cC6000` |
| Implementation (V6)         | `0xB9C095D97669f74671bef3E74AEed1f0e8D99e72` |

**Supported Tokens:**

| Token | Address                                      | Decimals |
| ----- | -------------------------------------------- | -------- |
| USDC  | `0x036CbD53842c5426634e7929541eC2318f3dCF7e` | 6        |
| WETH  | `0x4200000000000000000000000000000000000006` | 18       |

**Wallet Configuration:**

```json
{
  "chainId": "0x14a34",
  "chainName": "Base Sepolia",
  "nativeCurrency": {
    "name": "Ethereum",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": ["https://sepolia.base.org"],
  "blockExplorerUrls": ["https://sepolia.basescan.org"]
}
```

***

### Polygon Amoy

| Property        | Value                                                          |
| --------------- | -------------------------------------------------------------- |
| Network Name    | Polygon Amoy                                                   |
| Chain ID        | `80002`                                                        |
| Native Currency | MATIC                                                          |
| Block Time      | \~2 seconds                                                    |
| Finality Wait   | 15 blocks (\~30 seconds)                                       |
| Finality Type   | Deterministic (milestone-based, 2-5s actual finality)          |
| RPC Endpoints   | [polygon.technology](https://polygon.technology)               |
| Explorer        | [amoy.polygonscan.com](https://amoy.polygonscan.com)           |
| Faucet          | [faucet.polygon.technology](https://faucet.polygon.technology) |

**Bridge Contracts:**

| Contract                    | Address                                      |
| --------------------------- | -------------------------------------------- |
| MultiSigERC20Locker (Proxy) | `0x5208f75aEa0c2AeC5f71494B5f1B7DCF07cC6000` |
| Implementation (V6)         | `0x29d59b3Ec84B85DBC90E83344b7d58D54c1836Fd` |

**Wallet Configuration:**

```json
{
  "chainId": "0x13882",
  "chainName": "Polygon Amoy",
  "nativeCurrency": {
    "name": "MATIC",
    "symbol": "MATIC",
    "decimals": 18
  },
  "rpcUrls": ["https://rpc-amoy.polygon.technology"],
  "blockExplorerUrls": ["https://amoy.polygonscan.com"]
}
```

***

## Robinhood Chain Rollout

Robinhood mainnet remains approval-gated and disabled with a `NULL` locker. Testnet has a verified V16 locker, TEST mapping, and finalized-mode round trip; its testnet route is active.

### Robinhood Chain

| Property            | Value                                                                           |
| ------------------- | ------------------------------------------------------------------------------- |
| Network Name        | Robinhood Chain                                                                 |
| Chain ID            | `4663`                                                                          |
| Native Currency     | ETH                                                                             |
| Measured Block Time | \~0.1 seconds                                                                   |
| RPC                 | `https://rpc.mainnet.chain.robinhood.com`                                       |
| Explorer            | [robinhoodchain.blockscout.com](https://robinhoodchain.blockscout.com)          |
| Relayer Finality    | protocol `finalized` tag plus 15,000-block secondary floor                      |
| Bridge Status       | **Disabled; mainnet locker intentionally undeployed pending separate approval** |

### Robinhood Chain Testnet

| Property            | Value                                                                                |
| ------------------- | ------------------------------------------------------------------------------------ |
| Network Name        | Robinhood Chain Testnet                                                              |
| Chain ID            | `46630`                                                                              |
| Native Currency     | ETH                                                                                  |
| Measured Block Time | \~0.4 seconds (0.404 seconds over 500 blocks)                                        |
| RPC                 | `https://rpc.testnet.chain.robinhood.com`                                            |
| Explorer            | [explorer.testnet.chain.robinhood.com](https://explorer.testnet.chain.robinhood.com) |
| Relayer Finality    | protocol `finalized` tag plus 6,000-block secondary floor                            |
| Locker              | `0xaF0856690910F75DFA48e5F7CA4Af669be6c338d` (V16, verified 3-of-5)                  |
| TEST Token          | `0xc65db6eE6f16919332275B23D80C71A0dd478EF6` (Casper mapping verified)               |
| Bridge Status       | **Active on testnet; finalized-mode round trip certified**                           |

***

## Coming Soon Networks

The following networks have deployed contracts but are not yet actively processing bridge transactions.

### Arbitrum Sepolia

| Property        | Value                                              |
| --------------- | -------------------------------------------------- |
| Network Name    | Arbitrum Sepolia                                   |
| Chain ID        | `421614`                                           |
| Native Currency | ETH                                                |
| Block Time      | \~250ms                                            |
| Finality Wait   | Variable (L2 sequencer + L1 finality)              |
| RPC Endpoints   | [docs.arbitrum.io](https://docs.arbitrum.io)       |
| Explorer        | [sepolia.arbiscan.io](https://sepolia.arbiscan.io) |
| Faucet          | Arbitrum Bridge from Sepolia                       |

**Bridge Contracts:**

| Contract                    | Address                                      |
| --------------------------- | -------------------------------------------- |
| MultiSigERC20Locker (Proxy) | `0x5208f75aEa0c2AeC5f71494B5f1B7DCF07cC6000` |
| Implementation (V6)         | `0xf7f8BD6CAC0e95C10edFA65c3e9a894aC4E79745` |

**Wallet Configuration:**

```json
{
  "chainId": "0x66eee",
  "chainName": "Arbitrum Sepolia",
  "nativeCurrency": {
    "name": "Ethereum",
    "symbol": "ETH",
    "decimals": 18
  },
  "rpcUrls": ["https://sepolia-rollup.arbitrum.io/rpc"],
  "blockExplorerUrls": ["https://sepolia.arbiscan.io"]
}
```

***

### BNB Smart Chain Testnet

| Property        | Value                                                                          |
| --------------- | ------------------------------------------------------------------------------ |
| Network Name    | BNB Smart Chain Testnet                                                        |
| Chain ID        | `97`                                                                           |
| Native Currency | tBNB                                                                           |
| Block Time      | \~3 seconds                                                                    |
| Finality Wait   | 6 blocks (\~18 seconds)                                                        |
| RPC Endpoints   | [docs.bnbchain.org](https://docs.bnbchain.org)                                 |
| Explorer        | [testnet.bscscan.com](https://testnet.bscscan.com)                             |
| Faucet          | [testnet.bnbchain.org/faucet-smart](https://testnet.bnbchain.org/faucet-smart) |

**Bridge Contracts:**

| Contract                    | Address                                      |
| --------------------------- | -------------------------------------------- |
| MultiSigERC20Locker (Proxy) | `0x5208f75aEa0c2AeC5f71494B5f1B7DCF07cC6000` |
| Implementation (V6)         | `0x6F57B00Bda747e71a9a695D88F41254c098cd02e` |

**Wallet Configuration:**

```json
{
  "chainId": "0x61",
  "chainName": "BNB Smart Chain Testnet",
  "nativeCurrency": {
    "name": "Test BNB",
    "symbol": "tBNB",
    "decimals": 18
  },
  "rpcUrls": ["https://data-seed-prebsc-1-s1.bnbchain.org:8545"],
  "blockExplorerUrls": ["https://testnet.bscscan.com"]
}
```

***

## Network Requirements

### For Bridge Users

| Requirement     | EVM Chains                | Casper                                           |
| --------------- | ------------------------- | ------------------------------------------------ |
| Wallet          | MetaMask, WalletConnect   | Casper Wallet                                    |
| Native Currency | ETH for gas + bridge fee  | CSPR for gas + bridge fee                        |
| Token Approval  | Required before locking   | N/A                                              |
| Wait Time       | up to \~15 min (Ethereum) | up to \~15 seconds (Casper has instant finality) |

### For Relayer Operators

| Requirement | Value                                            |
| ----------- | ------------------------------------------------ |
| EVM RPC     | Archive node recommended                         |
| Casper RPC  | RPC Node access. CSPR Cloud for WebSocket events |
| P2P Ports   | 9000/tcp, 9000/udp                               |
| Storage     | File-based JSON (relayers)                       |
| Memory      | 4GB+ RAM                                         |
| Disk        | 50GB+ SSD                                        |

***

## Adding New Networks

AstralBeam can be extended to support additional EVM-compatible chains. Requirements:

1. **EVM Compatibility** - Must support standard EVM opcodes and Solidity
2. **Finality Mechanism** - Clear finality rules for transaction confirmation
3. **RPC Access** - Reliable RPC endpoints for monitoring
4. **Explorer** - Block explorer for transaction verification
5. **Deployment** - MultiSigLocker contract deployment

For adding new network support, see [Contributing Guide](/for-developers/contributing.md) or open a GitHub issue.

***

## Chain-Specific Notes

### Ethereum/Sepolia

* Longest finality wait (64 blocks, \~13 minutes)
* Highest gas costs
* Most established ecosystem

### Base

* L2 on Ethereum, uses Optimism stack
* Faster finality than Ethereum L1
* Lower gas costs
* Inherits Ethereum security through rollup

### Arbitrum (Coming Soon)

* L2 on Ethereum, uses Arbitrum Nitro
* Sub-second block times
* Variable gas costs based on L1 congestion
* Optimistic rollup with fraud proofs

### Polygon

* High throughput PoS chain
* **Deterministic finality** via milestone-based consensus (2-5 seconds actual finality)
* 15 block confirmations (\~30 seconds) provide 6x safety buffer
* Very low gas costs
* Strong DeFi ecosystem

### BNB Smart Chain (Coming Soon)

* EVM-compatible chain by Binance
* Fast block times (\~3 seconds)
* Lower gas costs than Ethereum
* Large user base in Asia-Pacific region

### Casper

* Instant finality (much faster and more secure than probabilistic finality on EVM chains)
* Uses Zug consensus
* Lower fees than Ethereum
* Account-based model with unique key format

***

## RPC Providers

### Recommended Providers

**Ethereum/Sepolia:**

* [Infura](https://infura.io) - Free tier available
* [Alchemy](https://alchemy.com) - Free tier available
* [QuickNode](https://quicknode.com)

**Base:**

* [Base Public RPC](https://docs.base.org)
* [Alchemy](https://alchemy.com)
* [QuickNode](https://quicknode.com)

**Arbitrum:**

* [Arbitrum Public RPC](https://docs.arbitrum.io)
* [Infura](https://infura.io)
* [Alchemy](https://alchemy.com)

**Polygon:**

* [Polygon Public RPC](https://polygon.technology)
* [Infura](https://infura.io)
* [Alchemy](https://alchemy.com)
* [QuickNode](https://quicknode.com)

**BNB Smart Chain:**

* [BNB Chain Public RPC](https://docs.bnbchain.org)
* [QuickNode](https://quicknode.com)
* [Ankr](https://ankr.com)

**Robinhood Chain:**

* Mainnet: `https://rpc.mainnet.chain.robinhood.com`
* Testnet: `https://rpc.testnet.chain.robinhood.com`

**Casper:**

* [CSPR Cloud](https://cspr.cloud) - Managed node infrastructure
* Self-hosted node

***

## Related Pages

* [Glossary](/reference/glossary.md) - Term definitions
* [FAQ](/using-astralbeam/faq.md) - Common questions
* [Connecting Wallets](/using-astralbeam/connecting-wallets.md) - Wallet setup guide


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