create session token

Example request

{
  "personaConfig": {
    "name": "Cara",
    "avatarId": "071b0286-4cce-4808-bee2-e642f1062de3",
    "avatarModel": "cara-4",
    "voiceId": "de23e340-1416-4dd8-977d-065a7ca11697",
    "llmId": "a7cf662c-2ace-4de1-a21e-ef0fbf144bb7",
    "systemPrompt": "You are a helpful assistant",
    "maxSessionLengthSeconds": 600,
    "initialMessage": "Hi there! I'm excited to chat with you today.",
    "voiceDetectionOptions": {
      "endOfSpeechSensitivity": 0.5,
      "silenceBeforeSkipTurnSeconds": 5,
      "silenceBeforeSessionEndSeconds": 60,
      "silenceBeforeAutoEndTurnSeconds": 5,
      "speechEnhancementLevel": 0.8
    },
    "voiceGenerationOptions": {
      "stability": 0.5,
      "speed": 1
    },
    "directorNotes": {
      "presetStyle": "warm",
      "customStylePrompt": "Warm smile, composed, slightly amused, looking directly at camera",
      "expressivity": 0.5
    },
    "tools": [
      {
        "type": "client",
        "name": "open_calendar",
        "description": "Open the calendar UI in the client app.",
        "parameters": {
          "type": "object",
          "properties": {
            "date": {
              "type": "string",
              "description": "Date to jump to, in YYYY-MM-DD format."
            }
          }
        }
      }
    ]
  },
  "sessionOptions": {
    "sessionReplay": {
      "enableSessionReplay": true
    },
    "videoQuality": "high",
    "showAIAvatarDisclosure": true,
    "videoWidth": 1152,
    "videoHeight": 768,
    "egress": {
      "mode": "daily",
      "daily": {
        "roomUrl": "https://your-domain.daily.co/avatar-room"
      }
    }
  }
}