curl --request POST \
  --url https://api.lehar.ai/ca/api/v0/sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "agent_id": "agent_sales_hi",
  "custom_variables": {
    "callee_name": "Jane",
    "company": "Acme"
  },
  "config": {
    "tts_provider": "sarvam",
    "voice": "anushka"
  }
}
'

import requests

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

payload = {
    "agent_id": "agent_sales_hi",
    "custom_variables": {
        "callee_name": "Jane",
        "company": "Acme"
    },
    "config": {
        "tts_provider": "sarvam",
        "voice": "anushka"
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    agent_id: 'agent_sales_hi',
    custom_variables: {callee_name: 'Jane', company: 'Acme'},
    config: {tts_provider: 'sarvam', voice: 'anushka'}
  })
};

fetch('https://api.lehar.ai/ca/api/v0/sessions', 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/sessions",
  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([
    'agent_id' => 'agent_sales_hi',
    'custom_variables' => [
        'callee_name' => 'Jane',
        'company' => 'Acme'
    ],
    'config' => [
        'tts_provider' => 'sarvam',
        'voice' => 'anushka'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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/sessions"

	payload := strings.NewReader("{\n  \"agent_id\": \"agent_sales_hi\",\n  \"custom_variables\": {\n    \"callee_name\": \"Jane\",\n    \"company\": \"Acme\"\n  },\n  \"config\": {\n    \"tts_provider\": \"sarvam\",\n    \"voice\": \"anushka\"\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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/sessions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"agent_id\": \"agent_sales_hi\",\n  \"custom_variables\": {\n    \"callee_name\": \"Jane\",\n    \"company\": \"Acme\"\n  },\n  \"config\": {\n    \"tts_provider\": \"sarvam\",\n    \"voice\": \"anushka\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

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

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"agent_id\": \"agent_sales_hi\",\n  \"custom_variables\": {\n    \"callee_name\": \"Jane\",\n    \"company\": \"Acme\"\n  },\n  \"config\": {\n    \"tts_provider\": \"sarvam\",\n    \"voice\": \"anushka\"\n  }\n}"

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

{
  "session_id": "session_01EXAMPLE",
  "customer_id": "customer_01EXAMPLE",
  "user_id": "user_01EXAMPLE",
  "user_name": "Jane Operator",
  "agent_id": "agent_sales_hi",
  "agent_name": "Sales Agent",
  "livekit_url": "wss://media.lehar.ai",
  "room_name": "room_01EXAMPLE",
  "participant_identity": "user_01EXAMPLE",
  "participant_name": "Jane Operator",
  "participant_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "dispatch_id": "disp_01EXAMPLE",
  "metadata": {
    "customer_id": "customer_01EXAMPLE",
    "user_id": "user_01EXAMPLE",
    "agent_id": "agent_sales_hi",
    "session_id": "session_01EXAMPLE"
  },
  "status": "active",
  "started_at": "2026-05-22T10:00:00Z",
  "ended_at": null,
  "call_type": "web"
}

{
  "error": {
    "code": "invalid_request",
    "message": "Bearer login is required to create sessions"
  }
}