---
title: "List a cycler's service history"
method: GET
path: "/cyclers/{cycler_id}/service_events"
tags: ["Cyclers"]
---

# List a cycler's service history

`GET /cyclers/{cycler_id}/service_events`

List the cycler's service events, most recently created first.

An event with a null ``performed_at`` is the cycler's current service; at
most one can exist. Completing a ``calibration`` event is what advances the
cycler's ``last_calibrated_at`` and therefore its ``calibration_due_at``.

## Path parameters

- `cycler_id` string, required

## Query parameters

- `limit` integer
- `offset` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/ionworks/apis/fastapi.md) · [All operations](https://skmtc.dev/ionworks/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/ionworks/fastapi/revisions/7337a3cbdaf2/schema)