Watch an exact plan series or a whole provider. Watches are durable server records evaluated after each successful daily pricing refresh — events are deterministic, deduplicated, and never fabricated from gaps or renames.
Watches belong to an owner token (ac_…), not an account. Create your first watch below to be issued one, or restore access by pasting a token you saved earlier. The token stays in this browser’s local storage; it is never put in URLs, analytics or logs.