---
title: "Changes to Get a trace"
method: GET
path: "/api/traces/{trace_unique_id}/"
---

# Changes to Get a trace

`GET /api/traces/{trace_unique_id}/`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 12 revisions.

- **2026-10-21** `c30bcb383ee8`: 9 breaking, 4 info
- **2026-10-02** `b830b79cfd52`: 4 breaking, 2 info
- **2026-09-17** `6fa8242da8c2`: 1 warning, 1 info
- **2026-09-12** `22b868ef3f22`: 1 info

## Changes

- **2026-10-21** `c30bcb383ee8`: 9 breaking, 4 info
  - the response property `input` became nullable for the status `200`
  - the response property `output` became nullable for the status `200`
  - the response property `span_tree/items/input` became nullable for the status `200`
  - the response property `span_tree/items/output` became nullable for the status `200`
  - the response property `span_tree/items/span_parent_id` became nullable for the status `200`
  - the `duration` response's property format changed from `double` to no format for status `200`
  - the `span_tree/items/cost` response's property format changed from `double` to no format for status `200`
  - the `span_tree/items/latency` response's property format changed from `double` to no format for status `200`
  - the `total_cost` response's property format changed from `double` to no format for status `200`
  - api operation id `traces_retrieveTrace` removed and replaced with `retrieveTrace`
  - the endpoint scheme security `DashboardJwt` was added to the API
  - api tag `Traces` added
  - api tag `traces` removed
- **2026-10-02** `b830b79cfd52`: 4 breaking, 2 info
  - the response property `input` became nullable for the status `200`
  - the response property `output` became nullable for the status `200`
  - the response property `span_tree/items/input` became nullable for the status `200`
  - the response property `span_tree/items/output` became nullable for the status `200`
  - added the non-success response with the status `403`
  - removed the non-success response with the status `401`
- **2026-09-17** `6fa8242da8c2`: 1 warning, 1 info
  - deleted the `header` request parameter `Authorization`
  - the endpoint scheme security `RespanApiKey` was added to the API
- **2026-09-12** `22b868ef3f22`: 1 info
  - api operation id `retrieve-trace` removed and replaced with `traces_retrieveTrace`

---

[Operation](https://skmtc.dev/respan/apis/respan-api/docs/api/traces/:trace_unique_id/get.md) - [API](https://skmtc.dev/respan/apis/respan-api.md) - [Page](https://skmtc.dev/respan/apis/respan-api/changes/api/traces/:trace_unique_id/get)