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API Authentication

All Sequen API endpoints require authentication. Authentication is performed using API keys passed in the HTTP Authorization header as a Bearer token.

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Finding Your API Key

You can find your API key in the Sequen Dashboard under Settings > API Keys.
API keys are intended for server-to-server authentication only. Never expose your API key in client-side code (browsers, mobile apps) or commit it to version control. Store it securely in environment variables or secrets management systems on your backend servers.

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Using the API Key

To authenticate your requests, include your API key in the Authorization header as a Bearer token:
Request Header
Authorization: Bearer YOUR_API_KEY
Replace YOUR_API_KEY with your actual Sequen API key.

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Legacy Authentication Method

Older client versions may use the X-API-Key header for authentication:
Request Header
X-API-Key: YOUR_API_KEY
If you’re unsure which authentication method to use, please check with the Sequen team to determine the appropriate method for your integration.

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Example Request

Here’s an example using curl to make an authenticated request (replace with a real endpoint later):
Example Curl Request
curl -X GET https://api.sequen.com/v1/some-endpoint \ # Replace with a valid endpoint
  -H "Authorization: Bearer YOUR_API_KEY"
If the API key is missing, invalid, or expired, the API will return a 401 Unauthorized error.