yalexs

Python API for Yale Access (formerly August) Smart Lock and Doorbell. This is used in Home Assistant but should be generic enough that can be used elsewhere.

Yale Access formerly August

This library is a fork of Joe Lu's excellent august library from https://github.com/snjoetw/py-august

API status

This is an unofficial library. As of v9, only the async API (yalexs.api_async.ApiAsync, yalexs.authenticator_async.AuthenticatorAsync) is supported — the synchronous Api / Authenticator classes were removed in v8 (see #141).

The public API key historically embedded in this library is no longer accepted by either backend. Brand.AUGUST (Fortune Brands / Yale Access) now requires an official partner key issued by the vendor. See #167 for context. The Brand.YALE_HOME (Assa Abloy) config was removed in #409 because its key stopped working; Yale Home accounts now authenticate through Brand.YALE_GLOBAL, which requires OAuth via Home Assistant. The usage example below is illustrative — you will need to supply a working key via the brand/API plumbing for it to authenticate against the live service.

Install

pip install yalexs

Classes

AuthenticatorAsync

AuthenticatorAsync handles authentication: signing in, sending a verification code to email or phone, and validating the returned code.

Constructor

Argument	Description
api	An ApiAsync instance.
login_method	Login method, either "phone" or "email".
username	If login_method is phone, your full phone number including + and country code; otherwise your email address.
password	Account password.
install_id*	ID generated when the Yale Access app is installed. If not specified, the authenticator generates one. Providing a previously provisioned install ID skips the verification step.
access_token_cache_file*	Path to a token cache file. If set, authentication state is persisted to disk so subsequent runs can skip the login step until the token expires.

* optional

Methods

async_setup_authentication()

Loads cached credentials from access_token_cache_file if present. Call once before async_authenticate().

async_authenticate() -> Authentication

Authenticates with the API. The returned Authentication.state is one of:

• AuthenticationState.AUTHENTICATED — logged in, access_token is valid.
• AuthenticationState.REQUIRES_VALIDATION — call async_send_verification_code() then async_validate_verification_code(code).
• AuthenticationState.BAD_PASSWORD — credentials rejected.
• AuthenticationState.REQUIRES_AUTHENTICATION — no cached token; call async_authenticate() to obtain one.

If a valid token is already cached, this returns it without contacting the API.

async_send_verification_code() -> bool

Sends a 6-digit verification code to the phone or email tied to the account.

async_validate_verification_code(code: str) -> ValidationResult

Validates the code. Returns ValidationResult.VALIDATED on success or ValidationResult.INVALID_VERIFICATION_CODE otherwise.

async_refresh_access_token(force: bool = False) -> Authentication | None

Refreshes the access token if it is within the renewal threshold (default 7 days before expiry). Pass force=True to refresh unconditionally.

Usage

import asyncio

from aiohttp import ClientSession

from yalexs.alarm import ArmState
from yalexs.api_async import ApiAsync
from yalexs.authenticator_async import AuthenticationState, AuthenticatorAsync
from yalexs.const import Brand


async def main() -> None:
    async with ClientSession() as session:
        api = ApiAsync(session, timeout=20, brand=Brand.AUGUST)
        authenticator = AuthenticatorAsync(
            api,
            "email",
            "EMAIL_ADDRESS",
            "PASSWORD",
            access_token_cache_file="auth.txt",
        )
        await authenticator.async_setup_authentication()
        authentication = await authenticator.async_authenticate()

        if authentication.state is AuthenticationState.REQUIRES_VALIDATION:
            await authenticator.async_send_verification_code()
            code = input("Verification code: ")
            await authenticator.async_validate_verification_code(code)
            authentication = await authenticator.async_authenticate()

        access_token = authentication.access_token

        locks = await api.async_get_locks(access_token)
        for lock in locks:
            print(lock)

        # Alarms (Yale Home brand only)
        if api.brand_supports_alarms:
            alarms = await api.async_get_alarms(access_token)
            if alarms:
                await api.async_arm_alarm(access_token, alarms[0], ArmState.Away)


asyncio.run(main())