curl --request PUT \
  --url https://server.sellagent.ai/api/agent/update/{id} \
  --header 'Content-Type: multipart/form-data' \
  --header 'x-api-key: <x-api-key>' \
  --form 'name=<string>' \
  --form 'script=<string>' \
  --form 'firstMessage=<string>' \
  --form 'type=<string>' \
  --form 'phone=<string>' \
  --form 'webhookURL=<string>' \
  --form 'modelType=<string>' \
  --form 'modelId=<string>' \
  --form 'voiceId=<string>' \
  --form 'language={}' \
  --form 'dynamicVariables={}' \
  --form silenceThreshold=123 \
  --form maxCallDuration=123 \
  --form enableRecording=true \
  --form enableTranscript=true \
  --form pauseBeforeSpeaking=123 \
  --form 'callTransfer={}' \
  --form 'customFunctions=<unknown>' \
  --form 'backgroundSound={
  "soundName": "<string>",
  "volume": 123
}' \
  --form file='@example-file'

{
  "_id": "686679f702bfb2054ec3d1f0",
  "name": "Appointement Setter Agent",
  "type": "Single Prompt",
  "firstMessage": "Hello, how can I help you today?",
  "modelType": "deepseek/deepseek-chat-v3-0324",
  "backgroundSound": {
    "volume": 30
  },
  "dynamicVariables": {
    "first_name": "John"
  },
  "webhookURL": "Url endpoint",
  "language": {
    "code": "en",
    "label": "English",
    "icon": "US"
  },
  "customFunctions": [
    "<unknown>"
  ],
  "voiceMailDetection": false,
  "silenceThreshold": 30,
  "maxCallDuration": 300,
  "pauseBeforeSpeaking": 0,
  "enableRecording": false,
  "enableTranscript": false,
  "providerId": "105922657181422688240",
  "currentWorkspace": "685846b162e555e53cd3aeaa",
  "creditsBalance": 0,
  "currentSubscription": {
    "status": "free",
    "stripeCustomerId": "cus_SarEyKO1v9KQfP"
  },
  "usageMetrics": {
    "callingMinutesUsed": 0,
    "contactsUploaded": 0,
    "emailsSent": 0,
    "lastResetDate": "2025-06-29T16:37:16.234Z",
    "currentPeriodUsage": {
      "callingMinutes": 0,
      "contacts": 0,
      "emails": 0
    }
  },
  "workspaceId": "685846b162e555e53cd3aeaa",
  "modelId": {
    "_id": "68243c0eba21403731844a8c",
    "provider": "OpenRouter",
    "label": "DeepSeek V3",
    "type": "text",
    "currency": "USD",
    "icon": "https://assets-seleagent.s3.us-east-2.amazonaws.com/deepseek.png",
    "modelName": "deepseek/deepseek-chat-v3-0324",
    "cost": 0.01,
    "latency": 400
  },
  "voiceId": {
    "_id": "6800a813e6052d216985b6eb",
    "voiceName": "Luna",
    "accent": "English (US)",
    "gender": "Female",
    "voiceId": "aura-2-luna-en",
    "demoUrl": "https://d2z4jjzwkquvhw.cloudfront.net/Luna.wav",
    "voiceImg": "https://img.freepik.com/...jpg",
    "voiceProvider": "Deepgram",
    "providerId": "68243c0eba21403731844a8a",
    "voiceKey": "aura-2-luna-en"
  },
  "knowledgeBase": [
    "<unknown>"
  ],
  "createdAt": "2025-07-03T12:39:19.318Z",
  "updatedAt": "2025-07-04T20:39:32.968Z",
  "script": "Agent Script"
}