# Supported blockchains

Openfort supports multiple blockchain ecosystems with a tiered approach to meet different development needs.

## Support tiers

Openfort offers two levels of support across different blockchain ecosystems:

### Tier 1: Signature and wallet abstraction

* Includes **Ethereum** chains
* Includes **Solana** chains

### Tier 2: Full functionality

* Gas sponsorship capabilities (Includes Ethereum & Solana)
* Advanced account abstraction features like smart wallets (Includes Ethereum)

| EVM Blockchains     | Testnet     | Mainnet   |
|---------------------|-------------|-----------|
| **Arbitrum Nova**   |             | 42170     |
| **Arbitrum One**    | 421614      | 42161     |
| **Avalanche**       | 43113       | 43114     |
| **Base**            | 84532       | 8453      |
| **Beam**            | 13337       | 4337      |
| **BNB**             | 97          | 56        |
| **Ethereum**        | 11155111    | 1         |
| **KL1 Blanche**     | 3008        |           |
| **Monad**           | 10143       |           |
| **Optimism**        | 11155420    | 10        |
| **Polygon POS**     | 80002       | 137       |
| **Soneium**  | 1946        |           |

| Solana Blockchains              | Cluster      | ID   |
|---------------------|--------------|------|
| **Solana**          | mainnet-beta | 1    |
| **Solana**          | devnet       | 2    |
| **Solana**          | testnet      | 3    |

:::warning
To request support for a chain not listed here, contact the team at hello@openfort.io.
:::

## Account type support

Openfort supports different account types depending on the chain. Not all chains support every account type.

| Account Type | Standard | Description | Supported Chains |
|-------------|----------|-------------|------------------|
| **Smart Accounts** | ERC-4337 (EntryPoint v0.6) | Contract-based wallets with gas sponsorship, transaction batching, and session keys | All chains except Clankermon |
| **Delegated Accounts** | EIP-7702 (EntryPoint v0.8/v0.9) | Upgrade EOAs into smart wallets without deploying a new contract | Arbitrum One, Base, BNB, Clankermon, Ethereum, Open Loot, Optimism, Polygon POS |

:::info
Delegated accounts are available on chains that support EntryPoint v0.8 or v0.9. If your chain is not listed above, use smart accounts instead.
:::