@aashrith, the hosted agents-playground.livekit.io has been gated behind Cloud sign-in, but the playground itself is still alive as OSS. The source is at GitHub - livekit/agents-playground · GitHub, actively maintained (last push yesterday). Clone it, run locally against your dev environment, paste your wss URL + token like before, and you have the same workflow back for self-hosted testing.
For quicker one-offs, lk room join from the LiveKit CLI connects to any wss URL with a token and is useful for headless sanity checks. The Agent Console inside cloud.livekit.io is the no-code path but it’s Cloud-only and won’t help for self-host. So for your specific use case (manual token + URL against your own server), the locally-run playground is the direct replacement.
Well, you asked first please also see my answer in that thread through - the source code for the agents playground is still available, but we do not maintain it anymore.