Check your balance
save-to-list of thousands of rows debits per row saved.
What debits credits
This design exists because saving is a server-side pipeline: the search, the save, and the follow-on enrichment run as one job, which is what lets a single call populate a fully enriched list. The build-a-list guide shows the cheap preview-then-save workflow end to end.
What never debits credits
Reads are free: listing lists, reading rows, checking campaign status, polling and downloading exports. You can poll as often as your rate limits allow — rate limits are a separate mechanism and always apply, whether or not a request costs credits.Insufficient balance
When your balance cannot cover an operation, the request fails up front withINSUFFICIENT_CREDITS — before any work runs, so nothing is billed. Top up or reduce the request size, then retry.