Python API¶

Besides the CLI, pymobiledevice3 is a library. Everything the CLI does is built on the same public classes you can use directly from your own (async) code.

The API is asyncio-based

Connection helpers and service methods are coroutines. Run them inside an event loop — e.g. with asyncio.run(main()).

1. Connect to a device¶

Every service is created on top of a service provider. There are three ways to get one — pick based on the iOS version and the service you need:

Connection	Python entry point	iOS	Root?	Use when
Lockdown (USB / Wi-Fi)	`create_using_usbmux`	all	no	Classic services: AFC, app install, syslog, diagnostics, backup, profiles
RSD — userspace tunnel	`UserspaceRsdTunnel`	17+	no	Default for developer/DVT from your own code or CI; the tunnel is in-process only
RSD — `tunneld`	`get_tunneld_devices`	17+	yes (daemon)	You need a shared/persistent tunnel, or an external tool (e.g. `lldb`) must reach the device

Rule of thumb: need a developer/DVT service on iOS 17+? use a tunnel (userspace by default); everything else goes over lockdown. Classic lockdown services work over USB on every iOS version (and developer services did too, before Apple's iOS 17 refactor moved them behind RSD). A lockdown connection is a LockdownClient; a tunnel connection is a RemoteServiceDiscoveryService. The sections below show each path.

Over USB (lockdown)¶

import asyncio
from pymobiledevice3.lockdown import create_using_usbmux


async def main():
    async with await create_using_usbmux() as lockdown:
        print(lockdown.all_values)  # full device info dict


asyncio.run(main())

create_using_usbmux(serial=...) targets a specific device; omit it to pick the first one.

iOS 17+ developer services (tunnel)¶

Developer/DVT services on iOS 17+ require an RSD tunnel.

Preferred: a no-root, in-process tunnel. UserspaceRsdTunnel brings the tunnel up inside your own process over a pure-Python network stack — no sudo and no separate tunneld daemon. It is a closeable async context manager that yields a connected RemoteServiceDiscoveryService:

from pymobiledevice3.remote.userspace_tunnel import UserspaceRsdTunnel


async def main():
    # serial=None -> first USB device; autopair pairs on the fly if needed
    async with UserspaceRsdTunnel(serial=None, autopair=True) as rsd:
        print(rsd.product_version)
        # `rsd` now drives any developer service / DvtProvider

It also exposes an explicit aopen() / aclose() handle if you can't use a context manager. Caveats: one tunnel per process, and the device address is reachable only from this process — don't hand it to external tools such as lldb.

The CLI's --userspace flag uses the same machinery through the convenience wrapper establish_userspace_rsd(), which opens the tunnel and keeps it alive for the process lifetime (handy for scripts; embedders should prefer UserspaceRsdTunnel for explicit teardown):

from pymobiledevice3.remote.userspace_tunnel import establish_userspace_rsd

rsd = await establish_userspace_rsd()  # connected RemoteServiceDiscoveryService

Alternative: reuse a running tunneld. If a privileged tunneld is already running, discover its published tunnels instead:

from pymobiledevice3.tunneld.api import get_tunneld_devices


async def main():
    rsds = await get_tunneld_devices()
    try:
        rsd = rsds[0]
        print(rsd.udid, rsd.product_version)
    finally:
        for rsd in rsds:
            await rsd.close()

You can also wrap an explicit address with RemoteServiceDiscoveryService((host, port)) and use it as an async context manager. See iOS 17+ tunnels for how the tunnel is established.

2. The service pattern¶

Nearly every service subclasses LockdownService, takes a service provider, and is an async context manager (a few, like CrashReportsManager and DvtProvider, wrap other services instead). Once you have that pattern, the services all work the same way:

from pymobiledevice3.lockdown import create_using_usbmux
from pymobiledevice3.services.os_trace import OsTraceService


async def main():
    async with await create_using_usbmux() as lockdown:
        async for entry in OsTraceService(lockdown=lockdown).syslog():
            print(entry.pid, entry.image_name, entry.message)

3. Worked examples¶

Stream syslog¶

from pymobiledevice3.services.os_trace import OsTraceService

async for entry in OsTraceService(lockdown=lockdown).syslog():
    print(f"[{entry.level.name}] {entry.image_name}: {entry.message}")

List installed apps¶

from pymobiledevice3.services.installation_proxy import InstallationProxyService

apps = await InstallationProxyService(lockdown=lockdown).get_apps()
for bundle_id, info in apps.items():
    print(bundle_id, info.get("CFBundleShortVersionString"))

Browse files over AFC¶

from pymobiledevice3.services.afc import AfcService

afc = AfcService(lockdown=lockdown)
print(await afc.listdir("/"))

Run a DVT (developer) service¶

DVT services go through a DvtProvider, which needs a tunnel-backed service provider on iOS 17+:

from pymobiledevice3.services.dvt.instruments.dvt_provider import DvtProvider
from pymobiledevice3.services.dvt.instruments.process_control import ProcessControl

# `rsd` is a tunnel-backed service provider (see "Connect to a device" above)
async with DvtProvider(rsd) as dvt:
    process_control = ProcessControl(dvt)
    pid = await process_control.launch("com.apple.mobilesafari")
    print("launched pid", pid)

4. Finding the right service¶

There are ~30 services under pymobiledevice3/services/. A few common ones:

Task	Class	Module
Syslog / oslog / process list	`OsTraceService`	`services.os_trace`
App install / list / uninstall	`InstallationProxyService`	`services.installation_proxy`
File access (media / app containers)	`AfcService`	`services.afc`
Diagnostics, reboot, IORegistry	`DiagnosticsService`	`services.diagnostics`
SpringBoard icons / wallpaper / orientation	`SpringBoardServicesService`	`services.springboard`
Crash reports	`CrashReportsManager`	`services.crash_reports`
Mount the Developer Disk Image	`MobileImageMounterService`	`services.mobile_image_mounter`
DVT instruments (iOS 17+ via tunnel)	`DvtProvider`	`services.dvt.instruments.dvt_provider`

For the full surface, see the API reference and the Writing CLI commands guide, which shows how the CLI wires service providers into commands.

5. Faster imports on Python 3.15+¶

On Python 3.15+ the CLI enables PEP 810 lazy imports for itself, scoped so that only pymobiledevice3's own imports are deferred — roughly halving its startup time. As a library, pymobiledevice3 never changes your process's import semantics: importing pymobiledevice3.* from your application stays eager.

If you own the process, you can opt in to the same behavior. It saves ~0.2-0.3s on the heaviest entry points (e.g. pymobiledevice3.remote.userspace_tunnel), and the filter keeps every other package eager — process-wide laziness is known to break some import hooks:

import sys


def _lazy_filter(importing: str, imported: str, fromlist: object = None) -> bool:
    return importing.partition(".")[0] == "pymobiledevice3"


if hasattr(sys, "set_lazy_imports"):  # Python 3.15+
    sys.set_lazy_imports("all")
    sys.set_lazy_imports_filter(_lazy_filter)

Run this before importing any pymobiledevice3 module. On older Pythons it is a no-op.