curl --request POST \
  --url https://sandbox.voice.miraiminds.co/v2/agents/flow/generate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data @- <<EOF
{
  "brief": "Call Mirai Motors customers whose car is due for service and book a workshop visit. Speak everyday Hindi. First confirm you are speaking to the customer by name; if it is someone else, apologise and end the call without mentioning the car. Then say which car is due for service and on what date, and ask which day they can bring it in. Read the day back and end the call. If they don't want to book now, thank them and end. Record the day they choose."
}
EOF

import requests

url = "https://sandbox.voice.miraiminds.co/v2/agents/flow/generate"

payload = { "brief": "Call Mirai Motors customers whose car is due for service and book a workshop visit. Speak everyday Hindi. First confirm you are speaking to the customer by name; if it is someone else, apologise and end the call without mentioning the car. Then say which car is due for service and on what date, and ask which day they can bring it in. Read the day back and end the call. If they don't want to book now, thank them and end. Record the day they choose." }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const url = 'https://sandbox.voice.miraiminds.co/v2/agents/flow/generate';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    brief: 'Call Mirai Motors customers whose car is due for service and book a workshop visit. Speak everyday Hindi. First confirm you are speaking to the customer by name; if it is someone else, apologise and end the call without mentioning the car. Then say which car is due for service and on what date, and ask which day they can bring it in. Read the day back and end the call. If they don\'t want to book now, thank them and end. Record the day they choose.'
  })
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

{
  "id": "fgen_01KZR3B41GT17DYMGFV465740B",
  "object": "flow_draft",
  "model": "gemini-3.8-flash",
  "flow": {
    "nodes": [
      {
        "id": "persona",
        "type": "globalNode",
        "data": {
          "name": "Persona and rules",
          "prompt": "You are Ashu, a service advisor at Mirai Motors.\nSpeak everyday Hindi in Devanagari; common English words such as service, slot and workshop are fine.\nSay one or two short sentences, then listen.\nNever promise a discount, a price or a pickup.\nWhen the condition of one of your functions is met, call it at once without saying anything first.",
          "is_start": false,
          "allow_interrupt": true,
          "add_global_prompt": true,
          "extraction_enabled": false,
          "extraction_variables": []
        }
      },
      {
        "id": "identity",
        "type": "startCall",
        "data": {
          "name": "Confirm the customer",
          "prompt": "You have asked whether you are speaking with {{name}}. Wait for the answer.\nIf they confirm, call confirmed_identity.\nIf it is someone else or a wrong number, call wrong_person.\nDo not mention the car or the service before they confirm.",
          "greeting": "नमस्ते, मैं मिराई मोटर्स से आशु बोल रहा हूं. क्या मेरी बात {{name}} जी से हो रही है?",
          "is_start": true,
          "allow_interrupt": true,
          "add_global_prompt": true,
          "extraction_enabled": false,
          "extraction_variables": []
        }
      },
      {
        "id": "offer_slot",
        "type": "agentNode",
        "data": {
          "name": "Book the service",
          "prompt": "Tell them their {{vehicle}} is due for service on {{due_date}}, and ask which day they can bring it to the workshop.\nWhen they name a day, read it back once and call slot_booked.\nIf they do not want to book now, call not_now.",
          "is_start": false,
          "allow_interrupt": true,
          "add_global_prompt": true,
          "extraction_enabled": true,
          "extraction_variables": [
            {
              "name": "preferred_day",
              "type": "string",
              "prompt": "The day the customer chose for the service, in their words, for example Saturday or 20 August."
            }
          ]
        }
      },
      {
        "id": "goodbye",
        "type": "endCall",
        "data": {
          "name": "Close",
          "prompt": "In one sentence, repeat what was agreed. Thank them and say goodbye. Do not ask anything else.",
          "is_start": false,
          "allow_interrupt": false,
          "add_global_prompt": true,
          "extraction_enabled": false,
          "extraction_variables": []
        }
      },
      {
        "id": "not_customer",
        "type": "endCall",
        "data": {
          "name": "Wrong person",
          "prompt": "Apologise for the trouble and say goodbye. Do not mention the car or the service.",
          "is_start": false,
          "allow_interrupt": true,
          "add_global_prompt": true,
          "extraction_enabled": false,
          "extraction_variables": []
        }
      }
    ],
    "edges": [
      {
        "id": "e1",
        "source": "identity",
        "target": "offer_slot",
        "data": {
          "label": "confirmed_identity",
          "condition": "The caller confirmed they are the customer you asked for."
        }
      },
      {
        "id": "e2",
        "source": "identity",
        "target": "not_customer",
        "data": {
          "label": "wrong_person",
          "condition": "The caller is someone else, or says it is a wrong number."
        }
      },
      {
        "id": "e3",
        "source": "offer_slot",
        "target": "goodbye",
        "data": {
          "label": "slot_booked",
          "condition": "The customer named a day for the service and you read it back."
        }
      },
      {
        "id": "e4",
        "source": "offer_slot",
        "target": "goodbye",
        "data": {
          "label": "not_now",
          "condition": "The customer does not want to book the service now."
        }
      }
    ]
  },
  "variables": [
    {
      "name": "name",
      "type": "string",
      "description": "The customer's name, used to confirm who answered."
    },
    {
      "name": "vehicle",
      "type": "string",
      "description": "The customer's car model."
    },
    {
      "name": "due_date",
      "type": "string",
      "description": "The date the car's service is due."
    }
  ],
  "input_schema": {
    "type": "object",
    "properties": {
      "due_date": {
        "type": "string",
        "description": "The date the car's service is due."
      },
      "name": {
        "type": "string",
        "description": "The customer's name, used to confirm who answered."
      },
      "vehicle": {
        "type": "string",
        "description": "The customer's car model."
      }
    },
    "required": [
      "name",
      "vehicle",
      "due_date"
    ]
  },
  "flow_revision": "2c0eccdffdf0edca4e0a",
  "rounds": 1,
  "usage": {
    "prompt_tokens": 3120,
    "completion_tokens": 2480
  },
  "cost": {
    "amount_inr": 2.41
  }
}

{
  "error": {
    "code": "insufficient_balance",
    "message": "wallet balance 0.00 INR is empty; generating a flow needs a positive balance"
  }
}

{
  "cost": {
    "amount_inr": 6.12
  },
  "details": [
    {
      "path": "flow.nodes[2]",
      "message": "node \"offer_slot\" has no path to an endCall node"
    }
  ],
  "error": "flow_generation_failed",
  "id": "fgen_01KZR3B50RW32C2SGTEF376YT8",
  "model": "gemini-3.8-flash",
  "usage": {
    "prompt_tokens": 9840,
    "completion_tokens": 7310
  }
}