Encode Novel AI account e-mail & password set into login key.

novelai_keyencrypt.py

from nacl import encoding, hash, pwhash

username = b"" # Input your email and password here
password = b""

result = pwhash.argon2id.kdf(
    size=64,
    password=password,
    salt=hash.generichash(
        password[:6] + username + b"novelai_data_access_key",
        digest_size=pwhash.argon2id.SALTBYTES,
        encoder=encoding.RawEncoder,
    ),
    opslimit=2,
    memlimit=2000000,
    encoder=encoding.URLSafeBase64Encoder,
)[:64]

print(result) # Your access key will appear here

# You just need to login in API document: https://api.novelai.net/docs

Thanks a lot, mate