As the CORE MainNet is about to be live, this are the simple method verified guidelines to add the CORE Blockchain on your MetaMask wallet. Ensure you follow the steps carefully and input the right details for the network.
There are two procedures you can use to add the CORE MainNet Chain to your MetaMask; the manual method and the automatic method (which is via the CORE Explorer). We’ll kickstart with the manual procedure.
Adding the new network on your browser extension:
1. Click on the network selector button (the downward facing arrow next to the current network). This will display a list of networks to which you’re already connected:
2. Click ‘Add network’ at the bottom of the network list:
3. A new browser tab will then open, displaying various fields to fill out:
Fill in the following network information:
- Network Name: Core Blockchain
- New RPC URL: https://rpc.coredao.org/
- Chain ID：1116
- Currency Symbol: CORE
- Block Explorer URL: https://scan.coredao.org
Complete the fields and click save to add the network.
4. After performing the above steps, you will be able to see the Core network the next time you access the network selector.
Incase you encountered a difficulty, or struggling with adding the network successfully, please ask for assistance from the ‘support’ channel in the Core Discord as soon as possible. Endeavor join our Telegram Group, Announcement Channel for updates about the Airdrop Distribution, Delegating (Staking) of CORE, DEX Swapping, Listing and Trading on Exchanges
Another procedure you may decide use is the automatic method – which is adding the Core Network to your MetaMask account via the Core Explorer:
1. Open your MetaMask browser, and go to https://scan.coredao.org/ and scroll down to bottom of the page, then click on the ‘Add Core Network’ button shown there 
2. Approve in your MetaMask
3. After performing the above steps, you will be able to see Core network the next time you access the network selector.
Adding the new network on your mobile wallet:
1. Tap on the three lines in the top-left corner:
2. Select ‘Settings’:
3. Select Networks:
4. Tap on ‘Add Network’:
5. Fill in the Custom RPC Network details:
Fill in the network information: 
- Network Name: Core Blockchain
- New RPC URL: https://rpc.coredao.org/
- Chain ID：1116
- Currency Symbol: CORE
- Block Explorer URL: https://scan.coredao.org
Complete the fields and click save to add the network.
4. After performing the above steps, you will be able to see the Core network the next time you access the network selector.