# Set Up MetaMask ## Configure Polygon (MATIC) with MetaMask In order to view the flow of funds in your accounts, on the Matic Network, you will need to configure Matic’s `{testnet, mainnet}` URL on Metamask. * Matic-Mainnet * Mumbai-Testnet To add Matic’s Mainnet, click on the Network selection drop down and then click on Custom RPC![](https://docs.matic.network/img/metamask/select-network.png) It will open up a form with 2 tabs on the top, Settings and Info. In the Settings tab you can add the URL `https://rpc-mainnet.maticvigil.com/` .![](https://docs.matic.network/img/metamask/metamask-settings-mainnet.png)​ Once you’ve added the URL in the New Network field, click on Save. You will be directly switched to Matic’s Mainnet now in the network drop down list. You can now close the dialog. --- # 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://astrofarms.gitbook.io/astrofarms/faq/polygon-and-metamask.md?ask= ``` 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.