---
title: "List the versions of a parameterized model"
method: GET
path: "/parameterized_models/{parameterized_model_id}/versions"
tags: ["parameterized_models"]
---

# List the versions of a parameterized model

`GET /parameterized_models/{parameterized_model_id}/versions`

## Request

- Base URL: `https://api.ionworks.com`
- URL: `https://api.ionworks.com/parameterized_models/{parameterized_model_id}/versions`
- Auth: none declared
- TypeScript: <https://skmtc.dev/ionworks/apis/ionworks-api/docs/parameterized_models/:parameterized_model_id/versions/get.ts> (a function with typed inputs; its response is checked against the schema)

List every version in a parameterized model's family, oldest first.

The family is the model's original and every version made from it or from one
of its versions, whichever member is asked about. Items are summaries without
parameter values, each with its ``parent_parameterized_model_id``; fetch one
with ``GET /parameterized_models/{id}`` for its parameters.

## Path parameters

- `parameterized_model_id` string, uuid, required

## Query parameters

- `limit` integer
- `offset` integer

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-11-04** `a7abf182f0e7`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/ionworks/apis/ionworks-api/changes/parameterized_models/:parameterized_model_id/versions/get.md)

---

[API](https://skmtc.dev/ionworks/apis/ionworks-api.md) - [All operations](https://skmtc.dev/ionworks/apis/ionworks-api/llms.txt) - [OpenAPI document](https://skmtc.dev/ionworks/apis/ionworks-api/revisions/9018b9f3e26f?raw)