Adding & Updating GitHub Access Token on Mac

add-update-refresh-github-access-token-on-mac.md

Using an Access Token for the first time

Follow the instructions on Github to Create an Access Token in Github

Configure Git to use the osxkeychain

By default, git credentials are not cached so you need to tell Git if you want to avoid having to provide them each time Github requires you to authenticate. On Mac, Git comes with an “osxkeychain” mode, which caches credentials in the secure keychain that’s attached to your system account.

You can tell Git you want to store credentials in the osxkeychain by running the following:-

git config --global credential.helper osxkeychain

Add your access token to the osxkeychain

Now issue a command to interract with Github which requires authentication, eg. git clone or git pull. When you are prompted to supply your Password for 'https://username@github.com': you enter your access token instead. Your token should now get cached in the osxkeychain automatically.

$ git clone https://github.com/username/repo.git

Cloning into 'repo'...
Username for 'https://github.com': your_github_username
Password for 'https://username@github.com': your_access_token

---

Updating an existing Access Token

Regenerate token on Github

If your existing token has expired, or been revoked, or you are on a new machine and do not have access to the existing token then you can regerate a new one in the Github console Settings -> Developer settings -> Personal access tokens.

Remove an existing token from your Mac keychain

You can remove an existing password or token stored in the osxkeychain using the following command.

$ git credential-osxkeychain erase ↵
host=github.com ↵
protocol=https ↵
↵

You should now be prompted for your Github credentials when attempting a git pull/clone/push etc and your token should automatically get stored in the osxkeychain. If subsequent calls to Github repeatedly prompt you for your credentials then likely the credential.helper is not set - see next section.

---

Troubleshooting

$ git pull

remote: Invalid username or password.
fatal: Authentication failed for 'https://github.com/user/repo.git/'

If authentication fails and you are not prompted to enter your credentials, like in the above example, or you are repeatedly challenged by Github for your credentials, then check if you have the credential.helper set.

git config --global credential.helper

If not, or it is set to something other than osxkeychain, then update/set it.

git config --global --unset credential.helper
git config --global credential.helper osxkeychain

Then try again and you should now be prompted for your credentials.

$ git clone https://github.com/username/repo.git

Cloning into 'repo'...
Username for 'https://github.com': your_github_username
Password for 'https://username@github.com': your_access_token

Ensure you provide your access token rather than password when prompted.

$ git credential-osxkeychain erase ⏎
host=github.com ⏎
protocol=https ⏎
⏎
⏎

This worked for me. The tricky / essential part is the "enter" key. You need to keep entering the enter key in each line.
After this, when you try any git command such as git push, the new configuration setting will be prompted.

The lower paragraph uses the words "prompt you for your token". I would recommend it's changed to match the paragraph above which specifically states "prompt you for your Password" to match. Also, the paragraph above might have a missing _ after the word password.

- Now, the next time you attempt a `clone/pull/push` etc on a private repo, the Github API should prompt you for your new token on the command line and entering the new token should also add it to your local Key Chain which you can check as below.
+ Now, the next time you attempt a `clone/pull/push` etc on a private repo, the Github API should prompt you for prompt you for your _Password_ on the command line and entering the new access token should also add it to your local Key Chain which you can check as below.

$ git credential-osxkeychain erase ⏎
host=github.com ⏎
protocol=https ⏎
⏎
⏎

This worked for me. The tricky / essential part is the "enter" key. You need to keep entering the enter key in each line.
After this, when you try any git command such as git push, the new configuration setting will be prompted.

For anyone searching, this is the correct solution.

tresf

The lower paragraph uses the words "prompt you for your token". I would recommend it's changed to match the paragraph above which specifically states "prompt you for your Password" to match. Also, the paragraph above might have a missing _ after the word password.

- Now, the next time you attempt a `clone/pull/push` etc on a private repo, the Github API should prompt you for your new token on the command line and entering the new token should also add it to your local Key Chain which you can check as below.
+ Now, the next time you attempt a `clone/pull/push` etc on a private repo, the Github API should prompt you for prompt you for your _Password_ on the command line and entering the new access token should also add it to your local Key Chain which you can check as below.

Thanks, I updated.

Hey, it is the first time I access the MacOS so based on the new restriction of GitHub on August 2021, the internet password for github.com on keychain access does not show up here. Thus, how can I enter username and password for git on my terminal? Thanks!

I opened my VScode on Mac and it prompted "Keychain Access wants to user your confidential information stored in 'github.com' in your keychain. I looked in my Keychain and did see a github.com entry and was able to copy the password. But when I entered it in the popup box it never worked. I deleted the Keychain entry manually. Tried making a new personal access key, restarting, doing git clone etc, but was never getting prompted for my new password/PAC.

Thank you it solved my problem

After typing git credential-osxkeychain erase the display does not hang/load, instead it expects another input, see: https://stackoverflow.com/a/28007050

 $ git credential-osxkeychain erase ⏎
 host=github.com  ⏎
 protocol=https   ⏎
 ⏎
 ⏎

This works for me too! Big help! Thanks

All I did was edit .git/config and change pass = <old-token> to pass = <new-token>. Perhaps my git is not configured to use osxkeychain?

Visual Studio Code did its own thing and asked github.com to authorise access using some fancy link.

I have to say, its all a bit of a mess though, it should be as simple as telling git to update token.

For anyone potentially struggling with this, try opening the Keychain application in OSX and changing the Personal Access Token value there. This worked very well for me. See attached screenshot.

For anyone potentially struggling with this, try opening the Keychain application in OSX and changing the Personal Access Token value there. This worked very well for me. See attached screenshot.

this is a solution for me! thanks!

Keychain

so cool

cool. this worked

Thanks. The $ commands did not work for me, I just read and re-read the steps and analysed the errors, and it worked. Took like 10 minutes; thanks for the comprehensive guide!

Might take some trial and error especially for people new with using Terminal, but it'll work!

Fresh Big Sur 11.1 install. I want to remove a Github token from the keychain.

git credential-osxkeychain erase hangs.

I can see a github.com entry in the Keychain Access UI, but I cannot remove it. If I filter for that entry with search box, right-click and Delete "github.com" does nothing. If I clear the filter and find the entry in the list, Delete option is not available in the context menu.

I ended up using a command line tool to remove the token from the keychain:

security delete-internet-password -l github.com

(You may want to use security find-internet-password --help to find the entry first.)

This worked for me. What a hunt to find this fix.

For reference git credential-osxkeychain erase didn't hang for me, I suspect some people think it hangs when it just needs user input, but the CLI tool was the one to fix it for whatever reason.

None of this worked for me. Using gh auth refresh worked though.

! First copy your one-time code: XXXX-XXXX
Press Enter to open github.com in your browser...
✓ Authentication complete.```

Thanks @jeremykoerber — that's the only thing that has worked for me. However, it's not clear to me what token and over what scopes and time gets installed by this process. Another option, which provides more fine-grained access, is the following (after installing the gh CLI, as you did): run

gh auth login

and provide these answers:

? What account do you want to log into?
GitHub.com
? What is your preferred protocol for Git operations on this host?
HTTPS
? Authenticate Git with your GitHub credentials?
No

This forces gh to ask:

? How would you like to authenticate GitHub CLI?

To which you can select Paste an authentication token. This then provides a prompt where you can paste in your token. The token needs to have repo and read:org scopes at a minimum.

To confirm, one can run

gh auth token

and this will show the newly-created token, which should match the "copy this or forever lose access to it" text shown on the Web.

Thanks for sharing it.