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poc.py

import requests
from hashlib import md5
from urllib.parse import urlsplit, urlencode, unquote_plus

headers = {"User-Agent": "Wolfram Android App"}
APPID = "3H4296-5YPAGQUJK7" # Mobile app AppId
SERVER = "api.wolframalpha.com"
SIG_SALT = "vFdeaRwBTVqdc5CL" # Mobile app salt

s = requests.Session()
s.headers.update(headers)

def calc_sig(query):
	"""
	Calculates WA sig value(md5(salt + concatenated_query)) with pre-known salt
	
	@query
	In format of "input=...&arg1=...&arg2=..."
	"""

	params = list(filter(lambda x: len(x) > 1, list(map(lambda x: x.split("="), query.split("&"))))) # split string by & and = and remove empty strings
	params.sort(key = lambda x: x[0]) # sort by the key

	s = SIG_SALT
	# Concatenate query together
	for key, val in params:
		s += key + val
	s = s.encode("utf-8")
	return md5(s).hexdigest().upper()

def craft_signed_url(url):
	"""
	Craft valid signed URL if parameters known
	
	@query
	In format of "https://server/path?input=...&arg1=...&arg2=..."
	"""

	(scheme, netloc, path, query, _) = urlsplit(url)
	_query = {"appid": APPID}

	_query.update(dict(list(filter(lambda x: len(x) > 1, list(map(lambda x: list(map(lambda y: unquote_plus(y), x.split("="))), query.split("&")))))))
	query = urlencode(_query)
	_query.update({"sig": calc_sig(query)}) # Calculate signature of all query before we set "sig" up.
	return f"{scheme}://{netloc}{path}?{urlencode(_query)}"

def basic_test(query_part):
	"""
	Simple PoC

	@query_part
	Example is "input=%url_encoded_string%&arg1=...&arg2=..."
	https://products.wolframalpha.com/api/documentation/#formatting-input
	"""
	r = s.get(craft_signed_url(f"https://{SERVER}/v2/query.jsp?{query_part}"))
	if r.status_code == 200:
		return r.text
	else:
		raise Exception(f"Error({r.status_code}) happened!\n{r.text}")

if __name__ == "__main__":
	print(basic_test("input=y%27+%3D+y%2F%28x%2By%5E3%29&podstate=Solution__Step-by-step+solution&format=plaintext&output=json"))

How did you obtain the salt value? Not sure if they've obfuscated it since, but from looking at it, it's not clearly defined. Anyhow, your script still works and thank you.

@AngeloD2022 it is located as plaintext in apk file

Hello! New here I was wondering how do I set it up once I downloaded the zip file on my computer?

Hello! New here I was wondering how do I set it up once I downloaded the zip file on my computer?

There is my website for it, but it's currently not working, i'll fix it as soon as possible