2545 Chains 0f62db34

Name: 2545 Chains 0f62db34
Author: tools-only

ASecurity

Comprehensive reference for all Uniswap-supported chains including RPC URLs, chain IDs, and common token addresses.

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Added May 31, 2026

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SKILL.md

# Supported Chains Reference

Comprehensive reference for all Uniswap-supported chains including RPC URLs, chain IDs, and common token addresses.

## Chain Configuration

### Ethereum Mainnet

| Property       | Value                      |
| -------------- | -------------------------- |
| Chain ID       | 1                          |
| URL Parameter  | `ethereum`                 |
| DexScreener ID | `ethereum`                 |
| DefiLlama ID   | `ethereum`                 |
| Native Token   | ETH                        |
| Public RPC     | `https://eth.llamarpc.com` |
| Block Explorer | `https://etherscan.io`     |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| USDC  | `0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48` |
| USDT  | `0xdAC17F958D2ee523a2206206994597C13D831ec7` |
| WETH  | `0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2` |
| WBTC  | `0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599` |
| DAI   | `0x6B175474E89094C44Da98b954EedeAC495271d0F` |
| UNI   | `0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984` |

### Base

| Property       | Value                      |
| -------------- | -------------------------- |
| Chain ID       | 8453                       |
| URL Parameter  | `base`                     |
| DexScreener ID | `base`                     |
| DefiLlama ID   | `base`                     |
| Native Token   | ETH                        |
| Public RPC     | `https://mainnet.base.org` |
| Block Explorer | `https://basescan.org`     |

**Common Tokens:**

| Token           | Address                                      |
| --------------- | -------------------------------------------- |
| USDC            | `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913` |
| USDbC (bridged) | `0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA` |
| WETH            | `0x4200000000000000000000000000000000000006` |
| DAI             | `0x50c5725949A6F0c72E6C4a641F24049A917DB0Cb` |
| cbETH           | `0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22` |
| UNI             | `0xc3de830ea07524a0761646a6a4e4be0e114a3c83` |

### Arbitrum One

| Property       | Value                          |
| -------------- | ------------------------------ |
| Chain ID       | 42161                          |
| URL Parameter  | `arbitrum`                     |
| DexScreener ID | `arbitrum`                     |
| DefiLlama ID   | `arbitrum`                     |
| Native Token   | ETH                            |
| Public RPC     | `https://arb1.arbitrum.io/rpc` |
| Block Explorer | `https://arbiscan.io`          |

**Common Tokens:**

| Token            | Address                                      |
| ---------------- | -------------------------------------------- |
| USDC             | `0xaf88d065e77c8cC2239327C5EDb3A432268e5831` |
| USDC.e (bridged) | `0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8` |
| USDT             | `0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9` |
| WETH             | `0x82aF49447D8a07e3bd95BD0d56f35241523fBab1` |
| WBTC             | `0x2f2a2543B76A4166549F7aaB2e75Bef0aefC5B0f` |
| ARB              | `0x912CE59144191C1204E64559FE8253a0e49E6548` |

### Optimism

| Property       | Value                             |
| -------------- | --------------------------------- |
| Chain ID       | 10                                |
| URL Parameter  | `optimism`                        |
| DexScreener ID | `optimism`                        |
| DefiLlama ID   | `optimism`                        |
| Native Token   | ETH                               |
| Public RPC     | `https://mainnet.optimism.io`     |
| Block Explorer | `https://optimistic.etherscan.io` |

**Common Tokens:**

| Token            | Address                                      |
| ---------------- | -------------------------------------------- |
| USDC             | `0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85` |
| USDC.e (bridged) | `0x7F5c764cBc14f9669B88837ca1490cCa17c31607` |
| USDT             | `0x94b008aA00579c1307B0EF2c499aD98a8ce58e58` |
| WETH             | `0x4200000000000000000000000000000000000006` |
| DAI              | `0xDA10009cBd5D07dd0CeCc66161FC93D7c9000da1` |
| OP               | `0x4200000000000000000000000000000000000042` |

### Polygon

| Property       | Value                     |
| -------------- | ------------------------- |
| Chain ID       | 137                       |
| URL Parameter  | `polygon`                 |
| DexScreener ID | `polygon`                 |
| DefiLlama ID   | `polygon`                 |
| Native Token   | MATIC                     |
| Public RPC     | `https://polygon-rpc.com` |
| Block Explorer | `https://polygonscan.com` |

**Common Tokens:**

| Token            | Address                                      |
| ---------------- | -------------------------------------------- |
| USDC             | `0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359` |
| USDC.e (bridged) | `0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174` |
| USDT             | `0xc2132D05D31c914a87C6611C10748AEb04B58e8F` |
| WETH             | `0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619` |
| WMATIC           | `0x0d500B1d8E8eF31E21C99d1Db9A6444d3ADf1270` |
| WBTC             | `0x1BFD67037B42Cf73acF2047067bd4F2C47D9BfD6` |

### BNB Chain

| Property       | Value                              |
| -------------- | ---------------------------------- |
| Chain ID       | 56                                 |
| URL Parameter  | `bnb`                              |
| DexScreener ID | `bsc`                              |
| DefiLlama ID   | `bsc`                              |
| Native Token   | BNB                                |
| Public RPC     | `https://bsc-dataseed.binance.org` |
| Block Explorer | `https://bscscan.com`              |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| USDC  | `0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d` |
| USDT  | `0x55d398326f99059fF775485246999027B3197955` |
| WBNB  | `0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c` |
| ETH   | `0x2170Ed0880ac9A755fd29B2688956BD959F933F8` |
| BTCB  | `0x7130d2A12B9BCbFAe4f2634d864A1Ee1Ce3Ead9c` |

### Avalanche C-Chain

| Property       | Value                                   |
| -------------- | --------------------------------------- |
| Chain ID       | 43114                                   |
| URL Parameter  | `avalanche`                             |
| DexScreener ID | `avalanche`                             |
| DefiLlama ID   | `avax`                                  |
| Native Token   | AVAX                                    |
| Public RPC     | `https://api.avax.network/ext/bc/C/rpc` |
| Block Explorer | `https://snowtrace.io`                  |

**Common Tokens:**

| Token  | Address                                      |
| ------ | -------------------------------------------- |
| USDC   | `0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E` |
| USDT   | `0x9702230A8Ea53601f5cD2dc00fDBc13d4dF4A8c7` |
| WAVAX  | `0xB31f66AA3C1e785363F0875A1B74E27b85FD66c7` |
| WETH.e | `0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB` |
| BTC.b  | `0x152b9d0FdC40C096757F570A51E494bd4b943E50` |

### Celo

| Property       | Value                    |
| -------------- | ------------------------ |
| Chain ID       | 42220                    |
| URL Parameter  | `celo`                   |
| DexScreener ID | `celo`                   |
| DefiLlama ID   | `celo`                   |
| Native Token   | CELO                     |
| Public RPC     | `https://forno.celo.org` |
| Block Explorer | `https://celoscan.io`    |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| cUSD  | `0x765DE816845861e75A25fCA122bb6898B8B1282a` |
| cEUR  | `0xD8763CBa276a3738E6DE85b4b3bF5FDed6D6cA73` |
| USDC  | `0xcebA9300f2b948710d2653dD7B07f33A8B32118C` |
| WETH  | `0x66803FB87aBd4aaC3cbB3fAd7C3aa01f6F3FB207` |

### Blast

| Property       | Value                  |
| -------------- | ---------------------- |
| Chain ID       | 81457                  |
| URL Parameter  | `blast`                |
| DexScreener ID | `blast`                |
| DefiLlama ID   | `blast`                |
| Native Token   | ETH                    |
| Public RPC     | `https://rpc.blast.io` |
| Block Explorer | `https://blastscan.io` |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| USDB  | `0x4300000000000000000000000000000000000003` |
| WETH  | `0x4300000000000000000000000000000000000004` |

### Zora

| Property       | Value                          |
| -------------- | ------------------------------ |
| Chain ID       | 7777777                        |
| URL Parameter  | `zora`                         |
| DexScreener ID | `zora`                         |
| DefiLlama ID   | n/a                            |
| Native Token   | ETH                            |
| Public RPC     | `https://rpc.zora.energy`      |
| Block Explorer | `https://explorer.zora.energy` |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| WETH  | `0x4200000000000000000000000000000000000006` |

### World Chain

| Property       | Value                                             |
| -------------- | ------------------------------------------------- |
| Chain ID       | 480                                               |
| URL Parameter  | `worldchain`                                      |
| DexScreener ID | `worldchain`                                      |
| DefiLlama ID   | n/a                                               |
| Native Token   | ETH                                               |
| Public RPC     | `https://worldchain-mainnet.g.alchemy.com/public` |
| Block Explorer | `https://worldscan.org`                           |

### Unichain

| Property       | Value                          |
| -------------- | ------------------------------ |
| Chain ID       | 130                            |
| URL Parameter  | `unichain`                     |
| DexScreener ID | `unichain`                     |
| DefiLlama ID   | `unichain`                     |
| Native Token   | ETH                            |
| Public RPC     | `https://mainnet.unichain.org` |
| Block Explorer | `https://uniscan.xyz`          |

**Common Tokens:**

| Token | Address                                      |
| ----- | -------------------------------------------- |
| USDC  | `0x078D782b760474a361dDA0AF3839290b0EF57AD6` |
| WETH  | `0x4200000000000000000000000000000000000006` |

## Provider ID Quick Reference

Use the correct chain identifier for each data provider API:

| Chain     | DexScreener ID | DefiLlama ID | Notes                                         |
| --------- | -------------- | ------------ | --------------------------------------------- |
| Ethereum  | `ethereum`     | `ethereum`   |                                               |
| Base      | `base`         | `base`       |                                               |
| Arbitrum  | `arbitrum`     | `arbitrum`   |                                               |
| Optimism  | `optimism`     | `optimism`   |                                               |
| Polygon   | `polygon`      | `polygon`    |                                               |
| BNB Chain | `bsc`          | `bsc`        | Not `bnb` — both providers use `bsc`          |
| Avalanche | `avalanche`    | `avax`       | IDs differ — DexScreener and DefiLlama differ |
| Celo      | `celo`         | `celo`       | Limited DexScreener Uniswap data              |
| Blast     | `blast`        | `blast`      | Limited DexScreener Uniswap data              |
| Zora      | `zora`         | n/a          | Not on DefiLlama; DexScreener data limited    |
| World     | `worldchain`   | n/a          | Not on DefiLlama; DexScreener data limited    |
| Unichain  | `unichain`     | `unichain`   | Newer chain — pool data still growing         |

**Key discrepancies:**

- **Avalanche**: DexScreener uses `avalanche`, DefiLlama uses `avax`
- **BNB Chain**: Both providers use `bsc`, not `bnb` (the URL parameter for Uniswap deep links is `bnb`)
- **Zora/World Chain**: Not indexed by DefiLlama — DexScreener only, with limited Uniswap pool data

## Token Address Lookup

When a user provides a token symbol, first check the common tokens list above. If not found:

1. Use web search: `"{symbol} token contract address {chain}"`
2. Verify the address on the chain's block explorer
3. Check if the token has liquidity on Uniswap

## Native Token Handling

For native tokens (ETH, MATIC, BNB, AVAX, CELO):

- Use `NATIVE` as the `inputCurrency` or `outputCurrency` parameter
- Do NOT use the wrapped token address for native tokens in swap URLs

**Examples:**

- Swap ETH → USDC: `inputCurrency=NATIVE`
- Swap WETH → USDC: `inputCurrency=0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2`

## RPC Rate Limits

Public RPCs have rate limits. For basic contract verification, public RPCs are sufficient. For production applications, consider using:

- Alchemy
- Infura
- QuickNode
- Or chain-specific premium RPCs