Authentication

Bearer token

All API requests must include your API key in the Authorization header as a Bearer token.

Authorization: Bearer ldm_live_sk_abc123...

API key formats

LDM issues two types of API keys. Use the correct key for your environment:

Example request

curl https://api.live-direct-marketing.online/v1/messages \
  -H "Authorization: Bearer ldm_live_sk_abc123..." \
  -H "Content-Type: application/json"

Error responses

If the API key is missing or invalid, the API returns a 401 Unauthorized response:

Missing API key

HTTP/1.1 401 Unauthorized

{
  "error": {
    "code": "unauthorized",
    "message": "Missing Authorization header. Include your API key as a Bearer token."
  }
}

Invalid API key

HTTP/1.1 401 Unauthorized

{
  "error": {
    "code": "invalid_api_key",
    "message": "The API key provided is invalid or has been revoked."
  }
}