# Connect MetaMask to BNB Chain/Polygon

Open MetaMask, from the top left click on the Ethereum logo to access a new menu that allows us to add networks by clicking on "Add Network". 

<figure><img src="https://content.gitbook.com/content/YrULFE2Ik09R3IUyH0Oy/blobs/wVq1nmimA7TJc8A507ke/10-Adding%20networks.png" alt="" width="263"><figcaption></figcaption></figure>

<figure><img src="https://content.gitbook.com/content/YrULFE2Ik09R3IUyH0Oy/blobs/3RaliLfu36yZZnTJfkpH/11-Adding%20networks2.png" alt="" width="267"><figcaption></figcaption></figure>

In the latest versions of MetaMask you can add well known networks by just clicking on them. Choose the network you wish to use and then click "Add".

<figure><img src="https://content.gitbook.com/content/YrULFE2Ik09R3IUyH0Oy/blobs/w0NgXidyUFbrq2QG4qK8/12-BNB%20Chain.png" alt=""><figcaption></figcaption></figure>

<figure><img src="https://content.gitbook.com/content/YrULFE2Ik09R3IUyH0Oy/blobs/qcLMiiJr621o5vcXpX09/14-Polygon.png" alt=""><figcaption></figcaption></figure>

Check the RPC details and then click "Approve" to finish.

<figure><img src="https://content.gitbook.com/content/YrULFE2Ik09R3IUyH0Oy/blobs/FUMEiplzwcffg4J4l8gQ/13-RPC%20Details.png" alt="" width="239"><figcaption></figcaption></figure>