Sample data for testing
While in preview, anycreatorId returns the same sample catalog. Use this example creator ID (or any UUID of your own — it is echoed back):
The catalog contains three campaigns with stable IDs — these are the only
campaignId values that return data:
Unknown campaign IDs return
404 NOT_FOUND, so you can exercise error handling end-to-end. The curl examples below are copy-paste ready — only the API key needs replacing.