Artemis Client

artemis-client is the remote Python SDK that runs on a developer machine. It communicates with the Artemis daemon on a device host over HTTP and contains no ADB, device-driver, agent, LLM, or image-processing code.

Runtime dependencies: zero. HTTP, JSON, and asynchronous adapters use only the Python standard library.

Installation

Install from a local checkout:

uv add --editable C:\path\to\artemis\packages\artemis-client

Install from the Git repository subdirectory:

uv add "artemis-client @ git+https://github.com/google/artemis.git#subdirectory=packages/artemis-client"

Connect to a Device Host

The current Artemis daemon administration API does not include built-in remote authentication. Do not expose its port directly to the public internet. During the initial rollout, connect through an SSH tunnel:

ssh -L 8000:127.0.0.1:8000 user@artemis-host

Then connect the SDK to the local tunnel endpoint:

from artemis_client import ArtemisClient

client = ArtemisClient("http://127.0.0.1:8000")

For production, place a reverse proxy in front of the daemon that enforces HTTPS and bearer-token authentication and exposes only task-related APIs.

Usage

import asyncio
import os

from artemis_client import ArtemisClient


async def main() -> None:
    client = ArtemisClient(
        os.environ["ARTEMIS_BASE_URL"],
        token=os.environ.get("ARTEMIS_TOKEN"),
    )

    handle = await client.submit(
        "Open the Battery page in Settings and verify the battery percentage",
        profile="flash",
        device_serial="emulator-5554",
    )
    print("queued:", handle.task_id)

    result = await client.wait_for_task(handle.task_id, timeout=600)
    if not result.succeeded:
        raise RuntimeError(result.error or result.status)


asyncio.run(main())

You can also submit a task and wait for it in one call:

result = await client.run("Open Android Settings and check the Wi-Fi status")

Main methods:

• health() quickly checks whether the server and scheduler are alive.
• readiness() runs full device and toolchain diagnostics and may take longer.
• capabilities() negotiates API features and falls back for older servers.
• list_devices() lists devices available on the host.
• submit() submits an idempotent task and returns immediately.
• get_task() retrieves a task.
• wait_for_task() waits for a terminal state.
• run() submits a task and waits for completion.
• stop() stops one task.

By default, submit() generates a UUID on the client and sends it as the current server's session_id. Network retries reuse the same task_id, preventing the server from creating duplicate tasks.

Compatibility

Version 0.1 supports these current Artemis daemon endpoints:

• POST /api/run
• GET /api/sessions/{session_id}
• GET /api/status
• POST /api/stop
• GET /api/devices
• GET /api/system/readiness

Capability discovery first attempts the future GET /api/v1/capabilities endpoint. If an older server returns 404, the SDK uses its known baseline capability set.

See DESIGN.md for the architecture and protocol evolution plan.