To use most endpoints of the LinkUp API, you need a valid LinkedIn authentication token. Our authentication API provides the recommended approach to obtain this token.

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Using LinkUp Authentication API

Our authentication API provides the most reliable and secure way to obtain the LinkedIn token. This method automatically handles IP matching and security challenges.

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Important Note ⚠️

The login endpoint should be used sparingly. Once you obtain a valid token, it remains valid for 365 days. You should:
  • Store the token securely after first authentication
  • Reuse the same token for all subsequent requests
  • Only re-authenticate if the token becomes invalid

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Advantages:

  1. Automatic IP Handling
    • Token is automatically configured to work with our proxy network
    • No need to worry about IP matching
    • Works seamlessly with all API endpoints
  2. Security Management
    • Handles LinkedIn security challenges automatically
    • Manages verification codes when required
    • Reduces risk of account restrictions

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How to Use:

Read the Authentication part of our documentation for detailed instructions.

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Response Example:

{
  "status": "success",
  "message": "Login successful",
  "login_token": "XXXX..."  // Your LinkedIn token - valid for 365 days
}

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Best Practices

  1. Token Storage
    • Store the token securely in your environment variables or secure storage
    • Never expose it in client-side code or version control
    • Implement proper access controls
  2. Usage Pattern
    • Get the token once through our API
    • Store it securely
    • Reuse it for all requests until it expires (365 days)
    • Only re-authenticate if you get a 403 error

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Troubleshooting

Common issues and solutions:
  1. Token Invalid
    • Check if the token has expired (after 365 days)
    • Verify token format is correct
    • Use the authentication API to get a new token
  2. Rate Limiting
    • Avoid making login requests if you already have a valid token
    • Store and reuse the token instead of authenticating repeatedly
Need more help? Contact our support at [email protected]