# Configuring the Libre Mainnet

Now we will configure the Libre Mainnet. Depending on your needs, you may want to configure the Libre Testnet as well.

## Libre Mainnet

To configure the Libre Mainnet, select “Manage Blockchains” from the blockchain selector drop down near the top of the Anchor windows:

<figure><img src="/files/IKKrFEqfXDAOpeUjpK67" alt=""><figcaption></figcaption></figure>

Scroll down through the list of "Available Blockchains" until you find the option to “Add/Remove” option.  Click on “Add/Remove”.

<figure><img src="/files/XCUvAqsXXYBjus7dohNN" alt=""><figcaption></figcaption></figure>

You will be presented with a list of blockchains you can enable within Anchor Wallet. We'll need to click on "Custom Blockchain" to configure support for Libre.

<figure><img src="/files/Rkc1sv5PrY2oj82OIcA7" alt=""><figcaption></figcaption></figure>

Configure the "Custom Blockchain" screen as indicated for the Libre Mainnet:

<figure><img src="/files/scTfDnNfVtHVEz8MXARZ" alt=""><figcaption></figcaption></figure>

* **Chain ID:** *38b1d7815474d0c60683ecbea321d723e83f5da6ae5f1c1f9fecc69d9ba96465*
* **Name of Blockchain:** *Libre*
* **Default node for this blockchain:** *<https://lb.libre.org>*
* **Public Key Prefix (EOS...):** *EOS*
* **Default Token Symbol (EOS/TLOS/etc):** *LIBRE*
* **This blockchain is a test network (TESTNET):** *NOT SELECTED*

Click “Save” when complete.

You will be returned to the Add/Remove Blockchain screen.  Scroll down to find the newly added custom blockchain called “Libre”:

<figure><img src="/files/sCD0bR14awONcKTr78NS" alt=""><figcaption></figcaption></figure>

Check the Box next to “Libre” to enable it.

Scroll back up to the top of the list of blockchains, and click “Enable (#) blockchains.”

<figure><img src="/files/AZTh6oWG96HzmX0UPwQo" alt=""><figcaption></figcaption></figure>

Anchor Wallet is now configured to communicate with the Libre Mainnet.

Next we'll configure custom Mainnet tokens used within the Libre ecosystem.


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