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

# Supported chains

> Chain slugs and identifiers for EVM and Solana

## EVM chains

| Slug         | Network              | chainId |
| ------------ | -------------------- | ------: |
| ethereum     | Ethereum Mainnet     |       1 |
| bsc          | BNB Smart Chain      |      56 |
| polygon      | Polygon              |     137 |
| arbitrum     | Arbitrum One         |   42161 |
| base         | Base                 |    8453 |
| base-sepolia | Base Sepolia Testnet |   84532 |
| avalanche    | Avalanche C-Chain    |   43114 |

## Solana chains

| Slug           | Network        |
| -------------- | -------------- |
| solana         | Solana Mainnet |
| solana-testnet | Solana Testnet |
| solana-devnet  | Solana Devnet  |

Use the slug values above (for example, `base`, `solana-devnet`) in the `chain` field of requests.

<Note>
  If a chain is missing, contact support and we can evaluate adding it.
</Note>

### Solana chainId values in Transaction

For Solana transactions in the `Transaction` response, `chainId` uses sentinel values:

* `0` = Solana Mainnet
* `-2` = Solana Testnet
* `-3` = Solana Devnet