# Chain IDs

Ethereum: 101

BNB: 102

Avalanche: 106

Polygon: 109

Arbitrum: 110

Optimism: 111

Fantom: 112

Metis: 151

Base: 184

Linea: 183

Kava: 177

Mantle: 181


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://stargateprotocol.gitbook.io/stargate/developers/chain-ids.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.