main.py

from re import findall
from time import time
from curl_cffi import requests
from urllib.parse import urlencode

class Downloadable:
    def __init__(self, stream_url: str, session: requests.Session):
        self.stream_url = stream_url
        self.session = session

    def get_download_link(self):
        response = self.session.get(
            url = self.stream_url,
            headers = {
                "host": "api-v2.soundcloud.com",
                "connection": "keep-alive",
                "sec-ch-ua-platform": "\"Windows\"",
                "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
                "sec-ch-ua": "\"Not(A:Brand\";v=\"99\", \"Google Chrome\";v=\"133\", \"Chromium\";v=\"133\"",
                "sec-ch-ua-mobile": "?0",
                "accept": "*/*",
                "origin": "https://soundcloud.com",
                "sec-fetch-site": "same-site",
                "sec-fetch-mode": "cors",
                "sec-fetch-dest": "empty",
                "referer": "https://soundcloud.com/",
                "accept-encoding": "gzip, deflate, br, zstd",
                "accept-language": "en-US,en;q=0.9"
            },
        )

        return response.json()["url"]

class Track:
    def __init__(self, track_data: dict, session: requests.Session):
        self.id = track_data.get("id")
        self.title = track_data.get("title")
        self.track_authorization = track_data.get("track_authorization")
        self.media = track_data.get("media", {}).get("transcodings", [])

        self.session = session

    def get_stream_link(self):
        preferred_protocols = [
            "hls",
            "progressive"
        ]
        
        for protocol in preferred_protocols:
            for transcoding in self.media:
                if transcoding["format"].get("protocol") == protocol:
                    params = {
                        "client_id": "YHtBnq6bxM7DhJkIfzrGq3gYrueyLDMM",
                        "track_authorization": self.track_authorization
                    }
                    url = transcoding["url"]

                    return Downloadable(f"{url}?{urlencode(params)}", self.session)
                
        return None

class Soundcloud:
    def __init__(self):
        self.session = requests.Session(
            impersonate = "chrome120"
        )

        self.user_id = self.get_user_id()

    def get_user_id(self):
        response = self.session.get(
            url = "https://soundcloud.com/",
            headers = {
                "host": "soundcloud.com",
                "connection": "keep-alive",
                "upgrade-insecure-requests": "1",
                "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
                "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
                "sec-fetch-site": "none",
                "sec-fetch-mode": "navigate",
                "sec-fetch-user": "?1",
                "sec-fetch-dest": "document",
                "sec-ch-ua": "\"Not(A:Brand\";v=\"99\", \"Google Chrome\";v=\"133\", \"Chromium\";v=\"133\"",
                "sec-ch-ua-mobile": "?0",
                "sec-ch-ua-platform": "\"Windows\"",
                "accept-encoding": "gzip, deflate, br, zstd",
                "accept-language": "en-US,en;q=0.9"
            }
        )

        return findall(r'"data":"(.*?)"', response.text)[0]

    def search(self, terms: str):
        response = requests.get(
            url = "https://api-v2.soundcloud.com/search",
            headers = {
                "host": "api-v2.soundcloud.com",
                "connection": "keep-alive",
                "sec-ch-ua-platform": "\"Windows\"",
                "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36",
                "accept": "application/json, text/javascript, */*; q=0.01",
                "sec-ch-ua": "\"Not(A:Brand\";v=\"99\", \"Google Chrome\";v=\"133\", \"Chromium\";v=\"133\"",
                "sec-ch-ua-mobile": "?0",
                "origin": "https://soundcloud.com",
                "sec-fetch-site": "same-site",
                "sec-fetch-mode": "cors",
                "sec-fetch-dest": "empty",
                "referer": "https://soundcloud.com/",
                "accept-encoding": "gzip, deflate, br, zstd",
                "accept-language": "en-US,en;q=0.9"
            }, params={
                "q": terms,
                "variant_ids": "",
                "facet": "model",
                "user_id": self.user_id,
                "client_id": "YHtBnq6bxM7DhJkIfzrGq3gYrueyLDMM",
                "limit": "20",
                "offset": "0",
                "linked_partitioning": "1",
                "app_version": int(time()),
                "app_locale": "en"
            }
        )

        return [Track(track, self.session) for track in response.json().get("collection", [])]

sc = Soundcloud()
print(sc.search("usquad")[0].get_stream_link().get_download_link())