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title: Supported Chains
description: This page provides a list of chains supported by 0x APIs.
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Swap and Gasless APIs are currently supported on the following chains. Select the chain in your request by providing the corresponding `chainId` request parameter. To request support for a new chain, please submit a request [here](https://0x.canny.io/request-features).

| Chain              | Chain ID | Swap API | Gasless API |
| ------------------ | -------- | -------- | ----------- |
| Ethereum (Mainnet) | 1        | ✅        | ✅           |
| Abstract           | 2741     | ✅        |             |
| Arbitrum           | 42161    | ✅        | ✅           |
| Avalanche          | 43114    | ✅        | ✅           |
| Base               | 8453     | ✅        | ✅           |
| Berachain          | 80094    | ✅        |             |
| Blast              | 81457    | ✅        | ✅           |
| BSC                | 56       | ✅        | ✅           |
| Ink                | 57073    | ✅        |             |
| Linea              | 59144    | ✅        |             |
| Mantle             | 5000     | ✅        | ✅           |
| Mode               | 34443    | ✅        | ✅           |
| Monad              | 10143    | ✅        |             |
| Optimism           | 10       | ✅        | ✅           |
| Plasma             | 9745     | ✅        | ✅           |
| Polygon            | 137      | ✅        | ✅           |
| Scroll             | 534352   | ✅        | ✅           |
| Sonic              | 146      | ✅        | ✅           |
| Unichain           | 130      | ✅        |             |
| World Chain        | 480      | ✅        |             |