Authentication

Every NexLev API request must include your API key. There is no separate OAuth flow — a single key authenticates all endpoints documented in the NexLev API reference.

Getting an API Key

Sign in to your NexLev dashboard
Go to Create API Key
Copy the generated key — it is shown once and cannot be recovered later, only regenerated

Keep it secret. Your API key grants full access to your account's quota. Never commit it to source control or expose it in client-side code.

Request Header

Include your API key in the Authorization header of every request:

Authorization: Bearer YOUR_API_KEY

Example with curl:

curl "https://prod.dashboard.nexlev.io/api/external/channels/about?id=UCX6OQ3DkcsbYNE6H8uQQuVA" \
  -H "Authorization: Bearer YOUR_API_KEY"

Managing Your Key

Rotate or revoke: Manage API Key
Monitor usage: The same page shows your remaining quota — see Rate Limits & Quota for how quota is calculated.

Unauthenticated Requests

Requests without a valid Authorization header receive a 401 Unauthorized response:

{
  "error": "Unauthorized",
  "details": "Missing or invalid API key."
}