RPC endpoints
One free key works on every network below. The Free daily request pool is shared across all chains and all keys on your account, and resets at 00:00 UTC.
| Chain | Chain ID | WebSocket | Endpoint |
|---|---|---|---|
| Arbitrum One | 42161 · 0xa4b1 | No | https://ethras.org/v1/arbitrum/<YOUR_API_KEY> |
| Base | 8453 · 0x2105 | No | https://ethras.org/v1/base/<YOUR_API_KEY> |
| BNB Smart Chain | 56 · 0x38 | No | https://ethras.org/v1/bsc/<YOUR_API_KEY> |
| Ethereum | 1 · 0x1 | Yes | https://ethras.org/v1/ethereum/<YOUR_API_KEY> |
| Optimism | 10 · 0xa | No | https://ethras.org/v1/optimism/<YOUR_API_KEY> |
| Polygon | 137 · 0x89 | No | https://ethras.org/v1/polygon/<YOUR_API_KEY> |