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Prosopo Captcha Solver

Solve Prosopo image classification challenges using the PopularCaptchaImage task type. Submit the challenge images and the instruction prompt.

Create Task

POST/createTask
Hostapi.captchasonic.com
Content-Typeapplication/json
{
    "apiKey": "YOUR_API_KEY",
    "task": {
        "type": "PopularCaptchaImage",
        "questionType": "objectClick",
        "question": "Select in this order: bus, car, tree",
        "queries": ["BASE64_IMAGE"],
        "websiteURL": "https://example.com"
    }
}

Response

{
    "code": 200,
    "msg": "",
    "answers": [[{ "x": 120, "y": 85 }, { "x": 240, "y": 150 }, { "x": 60, "y": 200 }]],
    "questionType": "objectClick"
}

Task Parameters

PropertyTypeRequiredDescription
typestringβœ…PopularCaptchaImage
questionTypestringβœ…objectClick for Prosopo challenges
questionstringβœ…The instruction text from the challenge
queriesstring[]βœ…Base64-encoded challenge images
websiteURLstringNoTarget website URL

API Playground

POST
Log in to auto-fill your API key
Payload
Response

Hit Send to see response

⌘ + Enter

Parameters

apiKeystringYOUR_API_KEY
taskobject{...}
β”” typestringPopularCaptchaImage
β”” questionTypestringobjectClick
β”” questionstringSelect in this order: bus, car…
β”” queriesarray[1 items]
β”” websiteURLstringhttps://example.com

Error Codes

1KEY_DOES_NOT_EXIST
2NO_SLOT_AVAILABLE
3ZERO_BALANCE
10ERROR_BAD_PARAMETERS
12ERROR_CAPTCHA_UNSOLVABLE
14PLAN_EXPIRED
16RATE_LIMITED
17DAILY_LIMIT_EXCEEDED
18QUOTA_LIMIT_EXCEEDED
21SERVICE_UNAVAILABLE
Code
terminal