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API keys grant full account access.
  • Copy API keys immediately; they are shown only once on creation
  • Store API keys securely in a secrets manager—never hardcode them in client-side code or commit them to repositories
  • Use separate API keys per environment (development, staging, production)
  • Apply least privilege: restrict each API key’s permissions to only what is necessary
PayNext uses API keys to authenticate all requests. Manage your keys in the Developers section of the PayNext Dashboard.

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How to Authenticate

Include your API key in the Authorization header for every request:
curl
curl -X GET 'https://api.paynext.com/payments' \
  -H "Authorization: Bearer <your-api-key>"