# Add Chain to MetaMask

### [Demo](https://web3-demo.bubbleapps.io/version-test/switch_chain)

If the user doesn't have a specific chain (network) added in his MetaMask, you can use this action to trigger MetaMask to add it.<br>

### &#x20;<mark style="background-color:blue;">Parameters</mark>&#x20;

<table><thead><tr><th width="193.33333333333331">Parameter name</th><th width="96">Type</th><th>Description</th></tr></thead><tbody><tr><td>Chain ID</td><td>Number</td><td>If you don't know the ID, find it here: <a href="https://chainlist.org/">https://chainlist.org/</a></td></tr><tr><td>Chain Name</td><td>Text</td><td></td></tr><tr><td>RPC URL</td><td>Text</td><td>Find it in <a href="https://chainlist.org/">https://chainlist.org/</a> or <a href="https://rpc.info/">https://rpc.info/</a></td></tr><tr><td>Token Symbol</td><td>Text</td><td>Native token symbol (ETH,BNB,MATIC,etc.)</td></tr><tr><td>Block Explorer URL</td><td>Text</td><td>For example: etherscan.io</td></tr></tbody></table>