Check whether a client is connected to a session. No token is needed.
GET
/api/agent/tunnels/:subdomain{
"subdomain": "tunnel-a1b2c3d4",
"publicUrl": "https://tunnel-a1b2c3d4.otterkit.app",
"connected": true
}A webhook endpoint can be live with no client attached, because the server answers it. In that case the response also includes a standby object, so read it before treating connected: false as stopped. Pulses include a pulse object. If the session can't be reached, the response has probeError: true and connected: false; treat that answer as unknown, not as stopped.