Image to text solving API

At a glance

Price per 1,000

$0.25 ($0.00025 per task)

createTask type

ImageToTextTask

in.php method

post, base64

You send

The image as base64, up to 100 KB

You get

The text on the image

Where to find the values

Download the CAPTCHA image and send it as base64 without the data: prefix. Set case, numeric or minimum and maximum length if the form needs them.

createTask and getTaskResult

Create the task, wait about 5 seconds, then check the result every 5 seconds until the status is ready. If the task fails, the API returns an error and the charge goes back to your balance.

import time, requests

API = "https://unlock-api.com"
KEY = "YOUR_API_KEY"

task = requests.post(f"{API}/createTask", json={
  "clientKey": KEY,
  "task": {
      "type": "ImageToTextTask",
      "body": "/9j/4AAQSkZJRgABAQ...",
      "case": true
    }
}).json()
if task["errorId"]:
    raise SystemExit(task["errorCode"])

while True:
    time.sleep(5)
    r = requests.post(f"{API}/getTaskResult", json={"clientKey": KEY, "taskId": task["taskId"]}).json()
    if r["errorId"]:
        raise SystemExit(r["errorCode"])   # failed tasks are refunded
    if r["status"] == "ready":
        print(r["solution"]["text"])
        break

in.php and res.php

The same task with the classic form API. Add json=1 to get JSON answers; without it the answers are plain text such as OK|1001.

curl -s "https://unlock-api.com/in.php" -d "key=YOUR_API_KEY&method=base64&body=BASE64_IMAGE&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"}