Missing or invalid API key. Check the x-api-key header value.
{ "error": "no_subscription" }
No active subscription or usage limit reached. Possible error values: no_subscription, subscription_inactive, usage_limit_reached.
For MPP requests without a valid payment credential, 402 returns a WWW-Authenticate: Payment challenge header instead.
{ "error": "x_api_unavailable" }
The X data source returned an error. Retry after a short delay.
Next steps:Get Tweet to fetch full details for a specific tweet, or Get User to look up an author profile.