---
title: "Get prompt version by sequential number"
method: GET
path: "/v1/private/prompts/{promptId}/versions/by-number/{versionNumber}"
tags: ["Prompts"]
---

# Get prompt version by sequential number

`GET /v1/private/prompts/{promptId}/versions/by-number/{versionNumber}`

Get a prompt version by its sequential v<N> number for the given prompt.

## Path parameters

- `promptId` string, uuid, required
- `versionNumber` string, required

## Response `200`

Prompt version resource

- PromptVersionDetail
  - `id` string, uuid — version unique identifier, generated if absent
  - `prompt_id` string, uuid
  - `commit` string — version short unique identifier, generated if absent. it must be 8 characters long
  - `version_number` string — sequential version number in the format v<N>; null for masks
  - `template` string, required
  - `metadata` JsonNodeDetail
  - `type` 'mustache' | 'jinja2' | 'python'
  - `version_type` 'prompt_version' | 'mask' — version type discriminator; defaults to prompt_version
  - `environment` string — Deprecated: use 'environments' instead
  - `environments` string[]
  - `change_description` string
  - `tags` string[]
  - `variables` string[]
  - `template_structure` 'text' | 'chat'
  - `created_at` string, date-time
  - `created_by` string

## Other responses

- `400` — Bad Request
- `404` — Not Found

## Changes

- **2026-05-28** `f59fc1819c0c` — 1 info
  - added the optional property `environment` to the response with the `200` status
- **2026-05-27** `3953a50a6a0e` — 1 warning, 1 info
  - removed the optional property `environment` from the response with the `200` status
  - added the optional property `environments` to the response with the `200` status
- **2026-05-20** `a98bd55ddc1e` — 1 info
  - endpoint added
- **2026-05-04** `d606e84c75e4` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/comet-ml/apis/opik-rest-api/changes/v1/private/prompts/:promptId/versions/by-number/:versionNumber/get.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.dev/comet-ml/apis/opik-rest-api/revisions/3ab3b8180ae9?raw)