pysteam-sdk 0.1.0a0

Steam, from modern Python.
An asyncio SDK and CLI for Steam authentication and content preservation.

pysteam-sdk installs as pysteam. It is an independent Steam SDK built on secure CM WebSockets and current protobuf messages. This first release is an alpha; APIs and archive formats may change.

What you can do

Get started

With uv installed, add the SDK to a Python project:

uv add pysteam-sdk

To use the standalone CLI:

uv tool install pysteam-sdk
pysteam app 220
pysteam doctor

The last two commands inspect public app data and test connectivity without an account.

Use your account

uv run pysteam init
uv run pysteam account add YOUR_NAME --mafile "path/to/account.maFile"
# Or: uv run pysteam account add YOUR_NAME --enroll
uv run pysteam login
uv run pysteam guard code
uv run pysteam depot list 220 221
uv run pysteam archive app 220
uv run pysteam archive verify 221 MANIFEST_ID
uv run pysteam archive extract 221 MANIFEST_ID --output restored

init creates a protected vault under ./.pysteam; account setup offers it automatically. Later commands ask for its password once per run. Set PYSTEAM_VAULT_PASSPHRASE through a secret manager for unattended use. Existing PYSTEAM_STORE_PASSPHRASE remains an alias. The maFile backup password is separate. Use vault change-password to rotate the vault and registered archive key capsules. See the account and archive guide.

Use the SDK

import asyncio
from pysteam import SteamClient

async def main() -> None:
    async with SteamClient() as steam:
        await steam.login_anonymous()
        app = await steam.get_app_info(220)
        print(app["appid"])

asyncio.run(main())

See the Python examples for authentication, WebAPI, CDN, and Game Coordinator usage.

Project links

• CLI and SDK examples · protobuf updater · issue audit
• Development and release checks · package layout · content references

Licensed under MIT. Independent of Valve and Steam.