---
title: "Read a revision"
method: GET
path: "/workflows/definitions/{id}/revisions/{revision}"
tags: ["Workflow revisions"]
---

# Read a revision

`GET /workflows/definitions/{id}/revisions/{revision}`

## Request

- Base URL: `https://api.nullplatform.com`
- URL: `https://api.nullplatform.com/workflows/definitions/{id}/revisions/{revision}`
- Auth: HTTP bearer

Returns one revision with its full definition.

## Path parameters

- `id` string, required
- `revision` integer, required

## Response `200`

The revision.

- Revision
  - `workflowId` string, required
  - `revision` integer, required: Revision number, starting at 1.
  - `definition` object, nullable: The full definition. `null` in list responses unless `includeDefinition=true`.
  - `createdAt` string, date-time, required
  - `createdBy` string
  - `releaseNotes` string
  - `semanticVersion` string

## Other responses

- `4XX`: Client error. The body says what went wrong: an error `type`, a human-readable `detail`, and, on validation failures, one entry per offending field.
- `5XX`: Unexpected server error.

## Changes

- **2026-09-17** `43b3c1ecdfd8`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/nullplatform/apis/nullplatform-api/changes/workflows/definitions/:id/revisions/:revision/get.md)

---

[API](https://skmtc.dev/nullplatform/apis/nullplatform-api.md) - [All operations](https://skmtc.dev/nullplatform/apis/nullplatform-api/llms.txt) - [OpenAPI document](https://skmtc.dev/nullplatform/apis/nullplatform-api/revisions/d3f66bc633d4?raw)