Invalid credentials for 'https://repo.magento.com/packages.json', aborting.

[Di_Vi_Vu]

Thank you for sharing

[L4mbd4]

Hi I had the same proble recently trying to upgrade in a project magento from 2.0.4 to 2.1.9.

Nothing seemed to work...but... I deleted the auth.json, I made on the repo a new token and a new set of keys, then I recreated globally the auth.json. When I pasted the 2 keys I noticed that a blank typo was before each key. I deleted the 2 typos and "voila" I was able to do the job.

[gilesbennett]

Bit late, but you do realise that it won't output the password that you're typing to the screen? So you won't have any visual feedback that your password is being entered.

[sapkal]

open composer.json file and add following code after this line

"repositories": {
        "0": {
            "type": "composer",
            "url": "https://repo.magento.com/"
        },
        "magento": {
            "type": "composer",
            "url": "https://repo.magento.com"
        }
        
    },

add the following code  here

"http-basic": {
      "repo.magento.com": {
         "username": "<Public key>",
         "password": "<Private key>"
      }
      },

runt the command

composer require magento/data-migration-tool:2.1.11 ( add your magento version)

It works fine

[katiak]

Double check in directories/files permissions and owner. I have the same issue and I fixed just doing this:

cd your-magento-directory/magento

chown -R youserverruser:yourserveruser .

In my case was 

cd /var/www/html/magento2

chown -R www-data:www-data .  

[sradug]

The solution is to use you acces key from https://marketplace.magento.com

USERNAME= PUBLIC KEY

PASSWORD= PRIVATE KEY

[catriona_lozano]

Nice 

User of Marketing Automation Software and I love it.

[zaibi099]

In my case my own public private key wasn't working. I requested from team-mate and it worked with his authentication keys. strange though but that is what happened.

[punit_sharma]

Get your public key and private key from magento marketplace and add them in auth.json file.

[aparnathule]

Thank you