title: Supported Chains
The 1inch Business Portal provides access to blockchain data through RPC Nodes and, on selected networks, through additional 1inch APIs such as Swap, History, and Gas Price.
Currently Supported
The following chains are currently available. Unless noted otherwise, a chain is available as RPC Nodes only.
| Chain | Chain ID | Network Family | Available Products |
|---|---|---|---|
| Ethereum | 1 | EVM | Full API set |
| BNB Chain | 56 | EVM | Full API set |
| Polygon | 137 | EVM | Full API set |
| Arbitrum | 42161 | EVM | Full API set |
| Optimism | 10 | EVM | Full API set |
| Avalanche | 43114 | EVM | Full API set |
| Gnosis | 100 | EVM | Full API set |
| Base | 8453 | EVM | Full API set |
| zkSync Era | 324 | EVM | Full API set |
| Linea | 59144 | EVM | Full API set |
| Sonic | 146 | EVM | Full API set |
| Unichain | 130 | EVM | Full API set |
| Plasma | 9745 | EVM | Full API set |
| Cronos | 25 | EVM | Full API set |
| Solana | - | SVM | Full API set |
For a per-chain list of which 1inch products are live, see the chain pages on the 1inch Business site. Examples: Ethereum, BNB Chain, Polygon, Cronos.
Notes
- Solana uses a different address format (
base58) and does not have a numeric chain ID. See the Solana documentation for details. - Cronos is available with the full 1inch API set (Swap, History, Gas Price, Tokens, and RPC Nodes). See the Cronos chain page for the live product list.
- Additional chains are added regularly. Check this page or the changelog for updates.
Requesting a New Chain
If you need a chain that is not currently supported, contact 1inch Business Support with:
- The chain name and chain ID
- Your expected usage volume
- The specific APIs you need (RPC Nodes, Swap, History, etc.)