Lemin Cropped Captcha
JSON methods
Token tasks
- reCAPTCHA v2
- reCAPTCHA v2 Enterprise
- reCAPTCHA v3
- Cloudflare Turnstile
- GeeTest v3 / v4
- FunCaptcha (Arkose Labs)
- Amazon AWS WAF
- MTCaptcha
- Friendly Captcha
- Lemin Cropped Captcha
- DataDome
- KeyCaptcha
- Capy Puzzle
- Cloudflare Challenge page
- Cutcaptcha
- CyberSiARA
- atbCAPTCHA
- Tencent Captcha
- Prosopo Procaptcha
- CaptchaFox
- Altcha
- NetEase Yidun
- Yandex SmartCaptcha
- VK Captcha
- Binance Captcha
- Custom task (Imperva, Temu and others)
Lemin Cropped Captcha
How to send a Lemin Cropped Captcha task to UNLOCK API with createTask or in.php: task type names, every parameter, the solution object, proxy fields and code samples in 7 languages.
- Price
- $0.725 $0.000725 per task
- You send
- Page URL, captcha id and the id of the div that holds the widget
- You get
- Answer and challenge id values
Task type names
Use the first name to solve without a proxy. Use the second name and add the proxy fields to solve through your own proxy. The price is the same.
LeminTaskProxylessWithout proxyLeminTaskThrough your proxyTask object
typeStringRequired
Task type name. Matched in any letter case.
LeminTaskProxyless | LeminTaskwebsiteURLStringRequired
Full address of the page where the CAPTCHA appears, starting with http:// or https://.
captchaIdStringRequired
The captcha_id from the Lemin script, starting with CROPPED_.
divIdStringRequired
The id of the div that holds the Lemin widget.
leminApiServerSubdomainStringOptional
Lemin API server, if the page uses its own.
userAgentStringOptional
Browser User-Agent to use while solving. Send the same one when you submit the answer.
Fields not listed here are passed to the solver as sent.
Proxy fields
Only for the proxy type name. Send either the separate fields or one proxy string.
proxyTypeStringRequired
http, https, socks4 or socks5.
proxyAddressStringRequired
Proxy IP address or host name.
proxyPortIntegerRequired
Proxy port.
proxyLoginStringOptional
Proxy user name, if the proxy needs one.
proxyPasswordStringOptional
Proxy password, if the proxy needs one.
proxyString
All proxy fields in one string, for example http://user:pass@1.2.3.4:8080.
Request
POST /createTask
{
"clientKey": "YOUR_API_KEY",
"task": {
"type": "LeminTaskProxyless",
"websiteURL": "https://example.com/login",
"captchaId": "CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b",
"divId": "lemin-cropped-captcha"
}
}Solution object
Returned in solution when status is ready.
answerString
The answer to submit.
challenge_idString
Lemin challenge id to submit with the answer.
POST /getTaskResult
{
"errorId": 0,
"taskId": 1001,
"status": "ready",
"solution": {
"answer": "0xaxakx0xaxaax0xkxx3ox0x3ox3ox...",
"challenge_id": "e0348984-92ec-4b7f-9a4e-3b8e1f0c2d6a"
},
"cost": "0.000725",
"createTime": 1791640000,
"endTime": 1791640014,
"solveCount": 1
}Code samples
import time, requests
API = "https://unlock-api.com"
KEY = "YOUR_API_KEY"
task = requests.post(f"{API}/createTask", json={
"clientKey": KEY,
"task": {
"type": "LeminTaskProxyless",
"websiteURL": "https://example.com/login",
"captchaId": "CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b",
"divId": "lemin-cropped-captcha"
}
}).json()
if task["errorId"]:
raise SystemExit(task["errorCode"])
for _ in range(60): # 60 x 5 s = the 5 minute task limit
time.sleep(5)
r = requests.post(f"{API}/getTaskResult", json={"clientKey": KEY, "taskId": task["taskId"]}).json()
if r["errorId"]:
raise SystemExit(f"{r['errorCode']}: {r.get('errorDescription', '')}") # failed tasks are refunded
if r["status"] == "ready":
print(r["solution"])
break
else:
raise SystemExit("timed out")const API = "https://unlock-api.com";
const KEY = "YOUR_API_KEY";
const post = (path, body) => fetch(API + path, { method: "POST", headers: { "content-type": "application/json" }, body: JSON.stringify(body) }).then((r) => r.json());
const task = await post("/createTask", {
clientKey: KEY,
task: {
"type": "LeminTaskProxyless",
"websiteURL": "https://example.com/login",
"captchaId": "CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b",
"divId": "lemin-cropped-captcha"
},
});
if (task.errorId) throw new Error(task.errorCode);
let solution = null;
for (let n = 0; n < 60 && !solution; n++) { // 60 x 5 s = the 5 minute task limit
await new Promise((r) => setTimeout(r, 5000));
const r = await post("/getTaskResult", { clientKey: KEY, taskId: task.taskId });
if (r.errorId) throw new Error(r.errorCode + ": " + r.errorDescription); // failed tasks are refunded
if (r.status === "ready") solution = r.solution;
}
if (!solution) throw new Error("timed out");
console.log(solution);<?php
$api = "https://unlock-api.com";
$key = "YOUR_API_KEY";
function post($url, $body) {
$c = curl_init($url);
curl_setopt_array($c, [CURLOPT_POST => true, CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => ["Content-Type: application/json"], CURLOPT_POSTFIELDS => json_encode($body)]);
return json_decode(curl_exec($c), true);
}
$task = post("$api/createTask", ["clientKey" => $key, "task" => json_decode('{"type":"LeminTaskProxyless","websiteURL":"https://example.com/login","captchaId":"CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b","divId":"lemin-cropped-captcha"}', true)]);
if ($task["errorId"]) exit($task["errorCode"]);
for ($n = 0; $n < 60; $n++) { // 60 x 5 s = the 5 minute task limit
sleep(5);
$r = post("$api/getTaskResult", ["clientKey" => $key, "taskId" => $task["taskId"]]);
if ($r["errorId"]) exit($r["errorCode"] . ": " . $r["errorDescription"]); // failed tasks are refunded
if ($r["status"] === "ready") break;
}
if ($r["status"] !== "ready") exit("timed out");
print_r($r["solution"]);package main
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"time"
)
const api = "https://unlock-api.com"
const key = "YOUR_API_KEY"
func post(method string, body map[string]any) map[string]any {
b, _ := json.Marshal(body)
res, err := http.Post(api+"/"+method, "application/json", bytes.NewReader(b))
if err != nil {
panic(err)
}
defer res.Body.Close()
var out map[string]any
json.NewDecoder(res.Body).Decode(&out)
return out
}
func main() {
task := post("createTask", map[string]any{
"clientKey": key,
"task": map[string]any{
"type": "LeminTaskProxyless",
"websiteURL": "https://example.com/login",
"captchaId": "CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b",
"divId": "lemin-cropped-captcha",
},
})
if task["errorId"].(float64) != 0 {
panic(task["errorCode"])
}
for n := 0; n < 60; n++ { // 60 x 5 s = the 5 minute task limit
time.Sleep(5 * time.Second)
r := post("getTaskResult", map[string]any{"clientKey": key, "taskId": task["taskId"]})
if r["errorId"].(float64) != 0 {
panic(r["errorCode"]) // failed tasks are refunded
}
if r["status"] == "ready" {
fmt.Println(r["solution"])
return
}
}
panic("timed out")
}import java.net.URI;
import java.net.http.*;
import java.util.regex.*;
public class Solve {
static final String API = "https://unlock-api.com", KEY = "YOUR_API_KEY";
static final HttpClient HTTP = HttpClient.newHttpClient();
static String post(String method, String json) throws Exception {
var req = HttpRequest.newBuilder(URI.create(API + "/" + method))
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString(json)).build();
return HTTP.send(req, HttpResponse.BodyHandlers.ofString()).body();
}
public static void main(String[] args) throws Exception {
String task = "{\"type\":\"LeminTaskProxyless\",\"websiteURL\":\"https://example.com/login\",\"captchaId\":\"CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b\",\"divId\":\"lemin-cropped-captcha\"}";
String created = post("createTask", "{\"clientKey\":\"" + KEY + "\",\"task\":" + task + "}");
Matcher id = Pattern.compile("\"taskId\":(\\d+)").matcher(created);
if (!id.find()) throw new RuntimeException(created);
for (int n = 0; n < 60; n++) { // 60 x 5 s = the 5 minute task limit
Thread.sleep(5000);
String r = post("getTaskResult", "{\"clientKey\":\"" + KEY + "\",\"taskId\":" + id.group(1) + "}");
if (r.contains("\"errorId\":1")) throw new RuntimeException(r); // failed tasks are refunded
if (r.contains("\"status\":\"ready\"")) { System.out.println(r); return; }
}
throw new RuntimeException("timed out");
}
}using System.Net.Http.Json;
using System.Text.Json;
const string Api = "https://unlock-api.com";
const string Key = "YOUR_API_KEY";
var http = new HttpClient();
async Task<JsonElement> Post(string method, object body) =>
await (await http.PostAsJsonAsync($"{Api}/{method}", body)).Content.ReadFromJsonAsync<JsonElement>();
var task = await Post("createTask", new {
clientKey = Key,
task = JsonSerializer.Deserialize<JsonElement>("""
{"type":"LeminTaskProxyless","websiteURL":"https://example.com/login","captchaId":"CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b","divId":"lemin-cropped-captcha"}
""")
});
if (task.GetProperty("errorId").GetInt32() != 0) throw new Exception(task.GetProperty("errorCode").GetString());
for (var n = 0; n < 60; n++) { // 60 x 5 s = the 5 minute task limit
await Task.Delay(5000);
var r = await Post("getTaskResult", new { clientKey = Key, taskId = task.GetProperty("taskId").GetInt64() });
if (r.GetProperty("errorId").GetInt32() != 0) throw new Exception(r.GetProperty("errorCode").GetString()); // failed tasks are refunded
if (r.GetProperty("status").GetString() == "ready") { Console.WriteLine(r.GetProperty("solution")); return; }
}
throw new Exception("timed out");curl -s https://unlock-api.com/createTask \
-H "Content-Type: application/json" \
-d '{"clientKey":"YOUR_API_KEY","task":{"type":"LeminTaskProxyless","websiteURL":"https://example.com/login","captchaId":"CROPPED_3dfdd5c_d1872b526b794d83ba3b365eb15a200b","divId":"lemin-cropped-captcha"}}'
# {"errorId":0,"taskId":1001}
curl -s https://unlock-api.com/getTaskResult \
-H "Content-Type: application/json" \
-d '{"clientKey":"YOUR_API_KEY","taskId":1001}'
# {"errorId":0,"status":"processing"} then {"errorId":0,"status":"ready","solution":{...},"cost":"0.001"}in.php form method
The same task with the classic form request. res.php returns the answer as text.
in.php, res.php
curl -s "https://unlock-api.com/in.php" -d "key=YOUR_API_KEY&method=lemin&captcha_id=CROPPED_ID&div_id=lemin-cropped-captcha&pageurl=https://example.com/login&json=1"
# {"status":1,"request":"1001"}
curl -s "https://unlock-api.com/res.php?key=YOUR_API_KEY&action=get&id=1001&json=1"
# {"status":0,"request":"CAPCHA_NOT_READY"} then {"status":1,"request":"ANSWER"}