# Metamask

***Switch to RPC Polygon Network***

***​To use AirTnT, we recommend the following steps to RPC URL.***

***Step 1 : Select the Network bar above the unlocked Metamask wallet.***

​​![](https://740030002-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv5DVs9TNJ5gszhVIGsGj%2Fuploads%2FOSP08sSmaN5gWHniNP0j%2Fimage.png?alt=media\&token=a2760306-f849-43fb-9648-516ff948a089)

***Step 2 : Select Add Network.***

​​![](https://740030002-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv5DVs9TNJ5gszhVIGsGj%2Fuploads%2FMUdUOL3cH4BxqnY7gKln%2Fimage.png?alt=media\&token=b8fcc6af-2285-4ea8-8663-6499d9ba0da7)

***Step 3 : Enter details as below and save.***

***Network Name: Polygon***\
***New RPC URL:*** [***https://polygon-rpc.com/***](https://polygon-rpc.com/)

***Chain ID: 137*** \
***Currency Symbol: MATIC***​

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<figure><img src="https://740030002-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv5DVs9TNJ5gszhVIGsGj%2Fuploads%2FHpsfWC7HlIT0CnHRTPjW%2F%EC%98%81%EC%96%B4%20%EB%A9%94%ED%83%80%201.PNG?alt=media&#x26;token=2fa34385-c468-40ce-804f-068caa3e15aa" alt=""><figcaption></figcaption></figure>

***Step 4 : Check the right router is notified***

Polygon has been added to the Metamask wallet!

<figure><img src="https://740030002-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fv5DVs9TNJ5gszhVIGsGj%2Fuploads%2FfhNLUalj8uHkJVZhP2pC%2F%EC%98%81%EC%96%B4%20%EB%A9%94%ED%83%80%202.PNG?alt=media&#x26;token=b62c4408-fdde-4571-afd2-24c057644685" alt=""><figcaption></figcaption></figure>

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