37 lines
1.0 KiB
Markdown
37 lines
1.0 KiB
Markdown
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# CCIP Chain Selectors Reference
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**Last Updated:** 2026-01-31
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CCIP uses numeric chain selectors for cross-chain routing. Set `CCIP_DEST_CHAIN_SELECTOR` when using `run-send-cross-chain.sh`.
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## Common Chain Selectors
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| Chain | Selector (decimal) |
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|-------|--------------------|
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| Ethereum Mainnet | 5009297550715157269 |
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| Arbitrum One | 4949039107694359620 |
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| Polygon | 4051577828743386545 |
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| Avalanche | 6433500567565415381 |
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| Base | 15971525489660198786 |
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| Optimism | 3734403246176062136 |
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| BSC (BNB Chain) | 11344663589394136015 |
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| Gnosis Chain | 465200170687744372 |
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| Celo | 1346049177634351622 |
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| Wemix | 5142893604156789321 |
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## Source
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Chain selectors are from Chainlink CCIP documentation. Verify current values at:
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- https://docs.chain.link/ccip/supported-networks
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- Bridge contract `getChainSelector()` or router config
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## Usage
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```bash
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# Send to Ethereum mainnet (default)
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./scripts/bridge/run-send-cross-chain.sh 0.01
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# Send to Polygon
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CCIP_DEST_CHAIN_SELECTOR=4051577828743386545 ./scripts/bridge/run-send-cross-chain.sh 0.01
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```
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