One or both query parameters are missing. Provide both source and target.
{ "error": "unauthenticated" }
Missing or invalid API key. Check the x-api-key header value.
{ "error": "no_subscription" }
No active subscription or insufficient credits. Possible error values: no_subscription, subscription_inactive, no_credits, insufficient_credits.
For MPP requests without a valid payment credential, 402 returns a WWW-Authenticate: Payment challenge header instead.
{ "error": "x_api_unavailable" }
The read service returned an error. Retry after a short delay.