---
title: "Update span by id"
method: PATCH
path: "/v1/private/spans/{id}"
tags: ["Spans"]
---

# Update span by id

`PATCH /v1/private/spans/{id}`

Update span by id

## Path parameters

- `id` string, uuid, required

## Request body

- SpanUpdate
  - `project_name` string — If null and project_id not specified, Default Project is assumed
  - `project_id` string, uuid — If null and project_name not specified, Default Project is assumed
  - `trace_id` string, uuid, required
  - `parent_span_id` string, uuid
  - `name` string
  - `type` 'general' | 'tool' | 'llm' | 'guardrail'
  - `end_time` string, date-time
  - `input` JsonListString
  - `output` JsonListString
  - `metadata` JsonListString
  - `model` string
  - `provider` string
  - `tags` string[] — Tags
  - `tags_to_add` string[] — Tags to add
  - `tags_to_remove` string[] — Tags to remove
  - `usage` object
  - `total_estimated_cost` number
  - `error_info` ErrorInfo
    - `exception_type` string, required
    - `message` string
    - `traceback` string, required
  - `ttft` number, double
  - `source` 'sdk' | 'experiment' | 'playground' | 'optimization' | 'evaluator'
  - `environment` string

## Response `204`

No Content

## Other responses

- `404` — Not found

## Changes

- **2026-07-02** `3144ea40dac0` — 1 info
  - added the new `evaluator` enum value to the request property `source`
- **2026-05-08** `b9100cf75dd3` — 1 info
  - added the new optional request property `environment`
- **2026-05-04** `d606e84c75e4` — 1 breaking, 1 warning
  - removed the enum value `evaluator` of the request property `source`
  - removed the request property `environment`

[Change history](https://skmtc.dev/comet-ml/apis/opik-rest-api/changes/v1/private/spans/:id/patch.md)

---

[API](https://skmtc.dev/comet-ml/apis/opik-rest-api.md) · [All operations](https://skmtc.dev/comet-ml/apis/opik-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/comet-ml/opik-rest-api/revisions/0739fa5022ca/schema)