funcaptcha

A library used to interact with funcaptchas.
This does not solve the captcha, but only allows you to interact with it. If you need a solver instead, I recommend Capsolver.com.

Note

This package will no longer be maintained regularly. I am open to accept pull requests and changes, but I myself will not be making any modifications anymore. This is because of the constant security measures Arkose Labs has been implementing, which I no longer have the free time and will to reverse engineer anymore. You are free to fork the code and maintain it there, or make your own version in another programming language. I just won't be making any changes anymore.

Installation

This package is available on npm.
Simply run: npm install funcaptcha

Usage And Documentation

Require the library like any other

const fun = require("funcaptcha")

You must first fetch a token using getToken

const token = await fun.getToken({
    pkey: "476068BF-9607-4799-B53D-966BE98E2B81", // The public key
    surl: "https://roblox-api.arkoselabs.com", // OPTIONAL: Some websites can have a custom service URL
    data: { // OPTIONAL
        blob: "blob" // Some websites can have custom data passed: here it is data[blob]
    },
    headers: { // OPTIONAL
        // You can pass custom headers if you have to, but keep
        // in mind to pass a user agent when doing that
        "User-Agent": 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
    },
    site: "https://www.roblox.com/login", // The site which contains the funcaptcha
    proxy: "http://127.0.0.1:8888" // OPTIONAL: A proxy to fetch the token, usually not required
    // NOTE: The proxy will only be used for fetching the token, and not future requests such as getting images and answering captchas
})

You can then create a new session

// Token, in this case, may either be a string (if you already know it) or an object you received from getToken (it will strip the token out of the object)
const session = new fun.Session(token, {
    proxy: "http://127.0.0.1:8888", // OPTIONAL: A proxy used to get images and answer captchas, usually not required
    userAgent: "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36" // OPTIONAL: Custom user agent for all future requests
})

// If you would like to let a user solve the captcha in their browser
// NOTE: Embed URLs will not work unless put in an iframe.
console.log(session.getEmbedUrl())

// Suppressed captchas are instantly valid an do not require for you to load a challenge (it will error)
// These can occur when using a trusted IP and good fingerprint
// You can check if a captcha is suppressed by doing the following:
console.log(session.tokenInfo.sup == "1")

One session can get you 10 funcaptcha challenges, you will have to get another session after that.

let challenge = await session.getChallenge()
// Please view https://pastebin.com/raw/Gi6yKwyD to see all the data you can find 
console.log(challenge.gameType) // Gets the game type (ball, tiles, matchkey, etc...)
console.log(challenge.variant) // The game variant, eg: apple, rotated, maze, dice_pair, dart, card, 3d_rollball_animals, etc...
console.log(challenge.instruction) // Self explanatory
console.log(challenge.waves) // Wave count
console.log(challenge.wave) // Current wave number

// You can then use these functions
await challenge.getImage()

// For game type 1, where you have to rotate a circle to put the image in the correct orientation
// In this game type, the angle increment can vary. It can be found with challenge.increment
await challenge.answer(3) // Usually 0-6, but can be 0-5 or 0-6 depending on challenge.increment (clockwise)
await challenge.answer(51.4) // You can input the raw angle as well (clockwise, negative for counter clockwise)

// For game type 3, where you have to pick one of 6 tiles
await challenge.answer(2) // 0-5, please see https://github.com/noahcoolboy/roblox-funcaptcha/raw/master/img.gif

// For game type 4, where you pick an image from a selection of images which matches the prompt compared to the image on the left
// The answer should be between 0 and challenge.difficulty
await challenge.answer(2) // Pick the third image

Full Example

const fs = require("fs")
const fun = require("funcaptcha")
const readline = require("readline")
let rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout
})

function ask(question) {
    return new Promise((resolve, reject) => {
        rl.question(question, (answer) => {
            resolve(answer)
        })
    })
}

fun.getToken({
    pkey: "69A21A01-CC7B-B9C6-0F9A-E7FA06677FFC",
}).then(async token => { 
    let session = new fun.Session(token)
    let challenge = await session.getChallenge()
    console.log(challenge.data.game_data.game_variant)
    console.log(challenge.data.game_data.customGUI.api_breaker)
    
    for(let x = 0; x < challenge.data.game_data.waves; x++) {
        fs.writeFileSync(`${x}.gif`, await challenge.getImage())
        console.log(await challenge.answer(parseInt(await ask("Answer: "))))
    }
    console.log("Done!")
})