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.
This endpoint returns trends directly from X. For multi-source trending data (Google Trends, Hacker News, Reddit, etc.), use List Radar Items.
Next steps:Search Tweets to find tweets about a trending topic.