Bulk Availability Check Endpoint

curl --request POST \
  --url https://app.tuco.ai/api/leads/check-availability \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://app.tuco.ai/api/leads/check-availability"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://app.tuco.ai/api/leads/check-availability', 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://app.tuco.ai/api/leads/check-availability",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.tuco.ai/api/leads/check-availability"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.tuco.ai/api/leads/check-availability")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.tuco.ai/api/leads/check-availability")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

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

POST

api

leads

check-availability

Bulk Availability Check Endpoint

curl --request POST \
  --url https://app.tuco.ai/api/leads/check-availability \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://app.tuco.ai/api/leads/check-availability"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://app.tuco.ai/api/leads/check-availability', 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://app.tuco.ai/api/leads/check-availability",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://app.tuco.ai/api/leads/check-availability"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://app.tuco.ai/api/leads/check-availability")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.tuco.ai/api/leads/check-availability")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

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

Endpoint

Method: POST
Path: /api/leads/check-availability

This endpoint lets you check iMessage availability for multiple leads at once, or for a single arbitrary address, using the same logic Tuco uses internally.

Check a Single Address (Quick Check)

Use this form to check one phone number or email address without creating a lead.

The address field must be a non-empty string. Sending { "address": "" } will not work — the empty string is ignored and Tuco falls through to the bulk leads path, which will likely return a 404 if you haven’t provided leadIds or listId.

{
  "address": "+12025551234"
}

Response

{
  "success": true,
  "available": true,
  "address": "+12025551234"
}

Bulk Check by Lead IDs

Provide a list of lead IDs in the current workspace. Tuco will:

Mark each lead as availabilityStatus: "available", "unavailable", or "error".
Return a summary of how many checks succeeded or failed.

{
  "leadIds": [
    "667f1f77bcf86cd799439012",
    "667f1f77bcf86cd799439013",
    "667f1f77bcf86cd799439014"
  ]
}

Response (synchronous small batch)

{
  "success": true,
  "checked": 3,
  "successful": 3,
  "errors": 0,
  "results": [
    {
      "leadId": "667f1f77bcf86cd799439012",
      "available": true,
      "status": "available"
    },
    {
      "leadId": "667f1f77bcf86cd799439013",
      "available": false,
      "status": "unavailable"
    }
  ],
  "processingMode": "synchronous"
}

For larger batches, Tuco automatically offloads work to a background job and responds with:

{
  "success": true,
  "message": "Bulk availability check started in background",
  "jobId": "bulk-availability-2025-10-15T14:30:00.000Z",
  "checked": 1200,
  "processingMode": "background"
}

You can safely trigger this endpoint from your backend and then rely on the updated availabilityStatus field on each lead for downstream decisions (for example, whether to enroll a lead in an iMessage campaign or to prefer SMS/email).

Check iMessage Availability (Single Lead)Messages

Overview

Webhooks

Errors and status codes

iMessage Availability

Messages

Voice / Calling

Replies

Lines & Leads

Campaigns

Analytics

Goal Bots

API Tools

Bulk Availability Check Endpoint

Endpoint

Check a Single Address (Quick Check)

Bulk Check by Lead IDs

​Endpoint

​Check a Single Address (Quick Check)

​Bulk Check by Lead IDs

Endpoint

Check a Single Address (Quick Check)

Bulk Check by Lead IDs