A reminder needs to arrive tomorrow. A partner sync runs every five minutes. Your autoscaler needs to know what is coming. GreatWait schedules HTTPS callbacks and forecasts upcoming delivery volume for capacity planning.

Schedule a URL once, after a delay, at a fixed interval or with a time-zone-aware cron expression. Use your own app or an API you are authorized to call, with your chosen method, headers and JSON body. Requests are signed, recoverable failures are retried, and delivery attempts are recorded so you can see what happened.

Connect Claude Code, Codex or Cursor through the hosted MCP server to create schedules, inspect outcomes and cancel future work in plain language. You can also use the REST API or dashboard. Read forecasts of scheduled occurrences in time buckets to inform your own scaling decisions. Your application runs the business logic; GreatWait handles the waiting, calls and records. Waiting costs nothing.