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Social Login

Social Login & OAuth

Sign in to Contextium securely using your existing Google or GitHub account.

Supported Providers

Contextium supports the following OAuth providers:

Google

Sign in with your Google account:

  • Personal Gmail accounts
  • Google Workspace accounts
  • G Suite accounts

GitHub

Authenticate with your GitHub account:

  • Personal GitHub accounts
  • GitHub Enterprise accounts
  • GitHub organizations

Benefits of Social Login

Convenience

  • No need to create and remember another password
  • One-click sign-in
  • Automatic email verification
  • Profile information imported automatically

Security

  • OAuth 2.0 industry-standard protocol
  • No password stored on Contextium servers
  • Two-factor authentication inherited from provider
  • Reduced risk of password reuse
  • Provider-level security protections

Account Management

  • Centralized access control
  • Easy account recovery
  • Automatic profile updates
  • Unified security settings

How Social Login Works

First-Time Sign Up

  1. Visit contextium.io/signup
  2. Click Continue with Google or Continue with GitHub
  3. You'll be redirected to the provider's login page
  4. Log in to your Google or GitHub account (if not already logged in)
  5. Review the permissions Contextium requests
  6. Click Authorize or Allow
  7. You'll be redirected back to Contextium
  8. Your account is created automatically
  9. Complete your profile setup

Subsequent Sign Ins

  1. Visit contextium.io/login
  2. Click Continue with Google or Continue with GitHub
  3. You'll be signed in automatically (if still logged in to provider)
  4. Or briefly redirected to provider to confirm

Permissions Requested

Contextium requests minimal permissions from OAuth providers.

Google Permissions

Contextium requests access to:

  • Email address - To create and identify your account
  • Basic profile information - Display name and profile picture
  • Email verification status - To confirm your email is verified

Contextium does NOT access:

  • Your Google Drive files
  • Your Gmail messages
  • Your Google Calendar
  • Your Google Contacts
  • Any other Google services

GitHub Permissions

Contextium requests access to:

  • Email address - To create and identify your account (including private email if primary is hidden)
  • Basic profile information - Username, display name, and avatar

Contextium does NOT access:

  • Your repositories (public or private)
  • Your code
  • Your organizations
  • Your followers/following
  • Any other GitHub data

Linking Accounts

Add Social Login to Existing Account

If you created your account with email/password, you can add social login:

  1. Navigate to Settings → Connected Accounts
  2. Click Connect Google or Connect GitHub
  3. Authorize the provider
  4. Social login is now enabled

You can now sign in with either:

  • Your email and password
  • Your connected Google account
  • Your connected GitHub account

Multiple Accounts

  • Each email address can only be associated with one Contextium account
  • If your Google email differs from your GitHub email, you can link both to the same Contextium account
  • If you try to sign in with a provider email that matches an existing account, you'll be prompted to link accounts

Unlinking Accounts

Remove Social Login

  1. Navigate to Settings → Connected Accounts
  2. Find the provider you want to remove
  3. Click Disconnect
  4. Confirm the action

Important:

  • If social login is your only sign-in method, you must set a password before unlinking
  • Navigate to Settings → Security → Set Password first

Security Considerations

Provider Security

Your security depends on your OAuth provider:

  • Enable two-factor authentication on your Google or GitHub account
  • Use a strong password for your provider account
  • Review authorized apps regularly in your provider settings
  • Revoke access if you suspect unauthorized use

Revoking Access

You can revoke Contextium's access from your provider:

Google:

  1. Visit myaccount.google.com/permissions
  2. Find Contextium in the list
  3. Click Remove Access

GitHub:

  1. Visit github.com/settings/applications
  2. Find Contextium in the Authorized OAuth Apps
  3. Click Revoke

Note: Revoking access will not delete your Contextium account, but you won't be able to sign in via that provider until you reauthorize or set a password.

Switching Between Providers

You can switch your primary sign-in method:

  1. Link the new provider in Connected Accounts
  2. Test sign-in with new provider
  3. Optionally unlink old provider
  4. Or keep both linked for flexibility

Account Deletion with Social Login

Deleting your Contextium account:

  • Removes your account data from Contextium
  • Does NOT affect your Google or GitHub account
  • OAuth authorization is automatically revoked
  • No data is shared back to the provider

See Account Security for details.

Email Address Changes

If you change your email in your OAuth provider:

Google:

  • Contextium will use the new email on next sign-in
  • Update may take up to 24 hours

GitHub:

  • Contextium will use your primary GitHub email
  • If you've hidden your email, we'll use your GitHub-provided proxy email

Troubleshooting

"Email Already in Use"

This means a Contextium account already exists with that email:

Solution:

  1. Sign in with email and password
  2. Navigate to Settings → Connected Accounts
  3. Link the social account

Or use password reset if you forgot your password.

"No Email Found"

Your OAuth provider account must have a verified email:

Google:

  • Verify your email in Google account settings
  • Ensure email verification is complete

GitHub:

  • Add and verify an email in GitHub settings
  • Set it as your primary email
  • Or ensure your private email feature is enabled

"Authorization Failed"

Common causes:

  • You clicked "Deny" or "Cancel" on the provider page
  • Your provider account lacks a verified email
  • Network connectivity issues
  • Browser blocking third-party cookies

Solution:

  • Try again and click "Allow" or "Authorize"
  • Ensure you have a verified email
  • Try a different browser
  • Allow third-party cookies for contextium.io

"Account Not Found After Sign-In"

If you signed in but can't access your account:

  1. Clear your browser cache and cookies
  2. Try signing in again
  3. Contact support@contextium.io if issue persists

Privacy & Data Protection

What Contextium Stores

From social login:

  • Email address
  • Display name
  • Profile picture URL (not downloaded, linked)
  • OAuth provider name (Google or GitHub)
  • OAuth provider user ID (for account linking)

What Contextium Does NOT Store

  • Your provider password
  • OAuth access tokens (discarded after verification)
  • Any data from your provider account
  • Your provider account activity
  • Your contacts or connections

GDPR Compliance

  • You can request your data at any time
  • You can delete your account and all data
  • OAuth tokens are not stored long-term
  • Minimal data collection principle applies

See Privacy Policy for complete details.

Best Practices

For Individuals

  1. Enable 2FA on your OAuth provider - Protects both accounts
  2. Review provider permissions regularly - Audit authorized apps
  3. Use strong provider passwords - Foundation of security
  4. Link backup sign-in method - Set a password as backup
  5. Monitor sign-in activity - Review login notifications

For Teams

  1. Require SSO instead - Use enterprise Single Sign-On (Business plan+)
  2. Enforce 2FA - At provider level if using OAuth
  3. Review member accounts - Ensure appropriate sign-in methods
  4. Centralized identity management - Consider SSO for better control
  5. Security policies - Align with organization standards

Enterprise SSO vs. OAuth

For business teams, consider Single Sign-On instead of OAuth:

OAuth Social Login:

  • Individual accounts
  • Personal Google/GitHub accounts
  • No centralized control
  • Free on all plans

Enterprise SSO:

  • Organizational accounts
  • Company identity provider
  • Centralized access control
  • Requires Business or Enterprise plan

See SSO Configuration for details.

Need Help?

Documentation

Support

  • Email: support@contextium.io
  • Live chat: Available in-app
  • Status: status.contextium.io (for OAuth provider issues)

Next Steps

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Single Sign On
Next
Two Factor Authentication