Here is a handy guide to help you with the Authentication required (repo.magento.com) error. Our Magento Support team is here to lend a hand with your queries and issues.

Authentication required (repo.magento.com)

The repo.magento.com repository is used to store Adobe Commerce, Magento Open Source, and 3rd-party Composer packages. We can use our Commerce Marketplace account to generate a pair of 32-character authentication keys in order to access the repository.

If we do not offer authentication keys, we are likely to run into the following message:

Warning from repo.magento.com: You haven’t provided your Magento authentication keys. For instructions, visit https://devdocs.magento.com/guides/v2.3/install-gde/prereq/connect-auth.html Authentication required (repo.magento.com):

Additionally, when we install Magento for the first time, we have to enter a public and private key pair that we have to generate. We can easily generate this key pair.

How to generate Public & Private key pair

1. First, we have to create an account at magento.com and then validate our e-mail address.
2. Then we have to log in at this link.
3. After that, we have to create a new access key. This results in a public and a private key, where the former is the username, and the latter is the password.
4. Next, enter this command install Magento:

   composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition /path/to/install/directory

Alternatively, we can also use this method:

1. First, we have to log in to the Commerce Marketplace at this link.
2. Next, we have to click our account name and select My Profile.
3. Then, head to the Marketplace tab and click Access Keys.
4. After that, it is time to click Create a New Access Key and enter a name for the keys and click OK.
5. At this point, we have access to the new public and private keys. Remember to save these keys.

Furthermore, we can disable or delete keys if we no longer need them. If you need further help with Authentication required (repo.magento.com) error message, let us know in the comments.

[Need assistance with a different issue? Our team is available 24/7.]

Conclusion

To sum up, our Support Techs demonstrated how to resolve the Authentication required (repo.magento.com) error by generating public and private keys.