Zelos SDK

Zelos is the data platform for mission‑critical systems. We help teams observe, control, and test their system on a collaborative platform – from prototype to production.

Use the Zelos SDK to push data into the Zelos App, Zelos Agent or directly to Zelos Cloud.

See Installing the Zelos SDK for more details on how to install, or Tracing API for a more complete API description.

Example: Logging Random Data

Install uv and save the file below as zelos_random.py and run uv run zelos_random.py to start streaming data live.

#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.10"
# dependencies = [ "zelos-sdk" ]
# ///
import random
import time

import zelos_sdk

zelos_sdk.init()

src = zelos_sdk.TraceSource("example_source")
while True:
    src.log_dict("example/message", {"value": random.randint(0, 10)})
    time.sleep(0.01)

Example: Logging Thermal Zones on Linux

Linux supports reading temperature sensors via sysfs. On a linux system, install uv and save the file below as temp_linux.py and run uv run temp_linux.py to start streaming data live.

#!/usr/bin/env -S uv run --script
# /// script
# requires-python = ">=3.10"
# dependencies = [ "zelos-sdk" ]
# ///
from pathlib import Path
import time

import zelos_sdk

zelos_sdk.init()

# Find all of our thermal zones from sysfs
thermal_zones = list(Path("/sys/class/thermal").glob("thermal_zone*"))

# Once per second, read the zone info and log it
src = zelos_sdk.TraceSource("linux_thermal")
while True:
    for zone_path in thermal_zones:
        # Read the zone info from sysfs
        zone_type = (zone_path / "type").read_text().strip()
        zone_temp_c = int((zone_path / "temp").read_text().strip()) / 1000.0

        # Log to the zelos sdk
        src.log_dict(zone_path.name, {"type": zone_type, "temp_c": zone_temp_c})

    time.sleep(1)