Changelog

New updates and improvements

January 20, 2026

Payload update: /solve

Updated the recommended request payload.

Changed

• Added otherSettings.

• Added extra requestData headers/flags used by Roblox flows.

• Updated the Roblox URL and cookies format used in examples.

/solve updated payload

{
    "apiKey": SOLVER_KEY,
    "fingerprintData": {
        "challengeUrl": "https://arkoselabs.roblox.com",
        "documentReferrer": "",
        "targetLocation": "https://www.roblox.com/",
        "titleTab": "Roblox",
        "windowAncestorOrigins": [],
        "windowTreeIndex": [],
        "windowTreeStructure": "[[]]",
        "historyLenght": 1
    },
    "requestData": {
        "blobExchange": blob,
        "capiMode": "lightbox",
        "cookies": cookies + f"; RBXPaymentsFlowContext={uuid.uuid4()},; RBXcb=RBXViralAcquisition%3Dtrue%26RBXSource%3Dtrue%26GoogleAnalytics%3Dtrue",
        "proxy": proxy,
        "publicKey": "A2A14B1D-1AF3-C791-9BBC-EE33CC7A0A6F",
        "siteUrl": "https://www.roblox.com",
        "styleTheme": "modal",
        "storageAccess": False,
        "User-Agent": "",
        "Sec-Ch-Ua": ""
    },
    "otherSettings": {
        "solvePOW": True,
        "enableCookies": True,
        "lowDataMode": True,
        "enableHTTP3": False
    }
}

Notes

• fingerprintData.historyLenght is intentionally spelled as shown.

January 19, 2026

API update: /solve

New request payload options were added.

Added

You can now pass two new objects:

• fingerprintData

• requestData

/solve new payload

{
    "apiKey": SOLVER_KEY,
    "fingerprintData": {
        "challengeUrl": "https://arkoselabs.roblox.com",
        "documentReferrer": "",
        "targetLocation": "https://www.roblox.com/login",
        "titleTab": "Log in to Roblox",
        "windowAncestorOrigins": [],
        "windowTreeIndex": [],
        "windowTreeStructure": "[[]]",
    },
    "requestData": {
        "blobExchange": blob,
        "capiMode": "lightbox",
        "cookies": cookies,
        "proxy": proxy,
        "publicKey": PUBLIC_KEY,
        "siteUrl": "https://www.roblox.com",
        "styleTheme": "modal",
    },
}

Notes

• fingerprintData.challengeUrl is required.

• requestData.blobExchange is required.

• requestData.styleTheme is required.

• requestData.publicKey is required.

• requestData.capiMode is required.

• requestData.siteUrl is required.

• requestData.proxy is required.

• All other fields shown above are optional.