1inch Business APIs cover the networks below. Product-level coverage can vary — each API reference page lists its exact supported chains, and the Web3 RPC API documents per-chain node capabilities.
| Chain | Chain ID |
|---|---|
| Ethereum | 1 |
| Optimism | 10 |
| Cronos (RPC Nodes only) | 25 |
| Binance | 56 |
| Gnosis | 100 |
| Unichain | 130 |
| Polygon | 137 |
| Monad (RPC Nodes only) | 143 |
| Sonic | 146 |
| zkSync | 324 |
| Solana | 501 |
| Robinhood | 4663 |
| Base | 8453 |
| Arbitrum | 42161 |
| Avalanche | 43114 |
| Linea | 59144 |
Notes
- Cronos and Monad are currently available for RPC node access only (Web3 RPC API).
- Solana support includes gRPC streaming on the Web3 RPC API and intent-swap coverage on the Swap API.
- Robinhood supports intent swaps and gasless cross-chain swaps via Fusion+, alongside the data and Web3 APIs.
- Chain-specific RPC details, endpoints, and status live on the per-chain pages, e.g. Polygon, Base, Linea, Sonic, and Monad.