Delete a price rule
Refused with 409 and invalid_state while a plan rate uses the rule. Move the plan rate to another rule or a fixed amount first.
Authentication
A secret key (rl_sk_test_..., rl_sk_live_...) or a restricted key with limited scopes (rl_rk_test_..., rl_rk_live_...). A restricted key can carry agent: true and an expires_at, and is what a coding agent should hold. Keys end in a checksum so secret scanners can recognize them. People create, roll and revoke keys in the dashboard; GET /v1/api_keys lists them, masked.
Path parameters
The price rule ID (pr_...) or its key.
Headers
Send true to see what the write would do without doing it. The response is the normal body with dry_run: true, changes (path, before, after), warnings and errors added, and nothing is stored. Validation runs as it would for a real write. The request is kept in request logs, tagged Dry run. When the same change is then made for real, its audit event has dry_run_preceded: true.