---
title: "List Pipeline Versions"
method: GET
path: "/api/v1/custom_pipelines/{processor_id}/versions"
tags: ["Custom Pipelines (Deprecated)"]
---

# List Pipeline Versions

`GET /api/v1/custom_pipelines/{processor_id}/versions`

List all versions of a custom processor, ordered by version descending.

## Path parameters

- `processor_id` string, required

## Cookies

- `wos-session` string
- `datalab_active_team` string

## Response `200`

Successful Response

- ProcessorVersionListResponse — Response schema for listing processor versions.
  - `versions` ProcessorVersionItem[] — List of processor versions
    - `version` integer, required — Version number
    - `request_description` string, required — Description used for this version
    - `created_at` string, required — ISO timestamp when version was created
    - `runtime` number, nullable — Execution time in seconds
    - `is_active` boolean — Whether this is the currently active version

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/datalab/apis/datalab-api.md) · [All operations](https://skmtc.dev/datalab/apis/datalab-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/datalab/datalab-api/revisions/aa9f8ee18efb/schema)