curl --request POST \
  --url https://api.lehar.ai/ca/api/v0/agent \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '
{
  "id": "agent_sales_hi",
  "name": "Sales Agent",
  "objective": "You are a sales assistant for {{company}}.",
  "instruction": "Be polite, concise, and never invent prices.",
  "task": "Qualify the lead and book a callback.",
  "custom_variables": [
    "callee_name",
    "company"
  ],
  "config": {
    "llm_provider": "gemini",
    "tts_provider": "sarvam",
    "speaker": "shubh"
  },
  "tools": []
}
'

import requests

url = "https://api.lehar.ai/ca/api/v0/agent"

payload = {
    "id": "agent_sales_hi",
    "name": "Sales Agent",
    "objective": "You are a sales assistant for {{company}}.",
    "instruction": "Be polite, concise, and never invent prices.",
    "task": "Qualify the lead and book a callback.",
    "custom_variables": ["callee_name", "company"],
    "config": {
        "llm_provider": "gemini",
        "tts_provider": "sarvam",
        "speaker": "shubh"
    },
    "tools": []
}
headers = {
    "X-API-KEY": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-KEY': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    id: 'agent_sales_hi',
    name: 'Sales Agent',
    objective: 'You are a sales assistant for {{company}}.',
    instruction: 'Be polite, concise, and never invent prices.',
    task: 'Qualify the lead and book a callback.',
    custom_variables: ['callee_name', 'company'],
    config: {llm_provider: 'gemini', tts_provider: 'sarvam', speaker: 'shubh'},
    tools: []
  })
};

fetch('https://api.lehar.ai/ca/api/v0/agent', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.lehar.ai/ca/api/v0/agent",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'id' => 'agent_sales_hi',
    'name' => 'Sales Agent',
    'objective' => 'You are a sales assistant for {{company}}.',
    'instruction' => 'Be polite, concise, and never invent prices.',
    'task' => 'Qualify the lead and book a callback.',
    'custom_variables' => [
        'callee_name',
        'company'
    ],
    'config' => [
        'llm_provider' => 'gemini',
        'tts_provider' => 'sarvam',
        'speaker' => 'shubh'
    ],
    'tools' => [
        
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-KEY: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.lehar.ai/ca/api/v0/agent"

	payload := strings.NewReader("{\n  \"id\": \"agent_sales_hi\",\n  \"name\": \"Sales Agent\",\n  \"objective\": \"You are a sales assistant for {{company}}.\",\n  \"instruction\": \"Be polite, concise, and never invent prices.\",\n  \"task\": \"Qualify the lead and book a callback.\",\n  \"custom_variables\": [\n    \"callee_name\",\n    \"company\"\n  ],\n  \"config\": {\n    \"llm_provider\": \"gemini\",\n    \"tts_provider\": \"sarvam\",\n    \"speaker\": \"shubh\"\n  },\n  \"tools\": []\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("X-API-KEY", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.lehar.ai/ca/api/v0/agent")
  .header("X-API-KEY", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"id\": \"agent_sales_hi\",\n  \"name\": \"Sales Agent\",\n  \"objective\": \"You are a sales assistant for {{company}}.\",\n  \"instruction\": \"Be polite, concise, and never invent prices.\",\n  \"task\": \"Qualify the lead and book a callback.\",\n  \"custom_variables\": [\n    \"callee_name\",\n    \"company\"\n  ],\n  \"config\": {\n    \"llm_provider\": \"gemini\",\n    \"tts_provider\": \"sarvam\",\n    \"speaker\": \"shubh\"\n  },\n  \"tools\": []\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.lehar.ai/ca/api/v0/agent")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"id\": \"agent_sales_hi\",\n  \"name\": \"Sales Agent\",\n  \"objective\": \"You are a sales assistant for {{company}}.\",\n  \"instruction\": \"Be polite, concise, and never invent prices.\",\n  \"task\": \"Qualify the lead and book a callback.\",\n  \"custom_variables\": [\n    \"callee_name\",\n    \"company\"\n  ],\n  \"config\": {\n    \"llm_provider\": \"gemini\",\n    \"tts_provider\": \"sarvam\",\n    \"speaker\": \"shubh\"\n  },\n  \"tools\": []\n}"

response = http.request(request)
puts response.read_body

{
  "id": "agent_sales_hi",
  "name": "Sales Agent",
  "objective": "You are a sales assistant for {{company}}.",
  "instruction": "Be polite, concise, and never invent prices.",
  "task": "Qualify the lead and book a callback.",
  "faqs": null,
  "sample_conversations": null,
  "channel": "voice",
  "config": {
    "llm_provider": "gemini",
    "tts_provider": "sarvam",
    "speaker": "shubh"
  },
  "tools": [],
  "custom_variables": [
    "callee_name",
    "company"
  ],
  "questionnaire": null,
  "template_agent_id": null,
  "knowledge_base_id": null,
  "pronunciation_dictionary_id": null,
  "customer_id": "customer_01EXAMPLE",
  "owner_user_id": "user_01EXAMPLE",
  "created_by_user_id": "user_01EXAMPLE",
  "visibility": "private",
  "status": "draft",
  "published_at": null,
  "created_at": "2026-05-22T10:00:00Z",
  "updated_at": "2026-05-22T10:00:00Z"
}

{
  "error": {
    "code": "invalid_request",
    "message": "config has keys the agent editor doesn't set for a voice agent: company, tts_speaker. Remove them; per-call values go in custom_variables."
  }
}

{
  "error": {
    "code": "conflict",
    "message": "Agent 'agent_sales_hi' already exists"
  }
}