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All API requests require a Bearer token in the Authorization header. 
Authorization: Bearer <your_api_key>

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Creating an API key

  1. Go to the API settings page
  2. Click Create New Key
  3. Copy the key immediately — it won’t be shown again
You can create up to 10 API keys per workspace.

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Example

curl https://api.clustr-ai.com/api/public/target-accounts \
  -H "Authorization: Bearer clstr_abc123..."

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Error responses

StatusMeaning
401Missing or invalid API key
403API key does not have access to this resource