> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hitl.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Publish a version

> Saves the workflow's current steps as a new numbered version. The workflow must be active.



## OpenAPI

````yaml POST /api/workflows/{id}/revisions
openapi: 3.1.0
info:
  title: HITL API
  version: 1.0.0
  description: >-
    Run the workflows you build in HITL, follow each run until a person has
    answered, and manage who reviews them.
servers:
  - url: https://api.hitl.sh/v1
security:
  - bearerAuth: []
tags:
  - name: Workflows
  - name: Runs
  - name: Reviewers
  - name: Webhooks
  - name: Account
  - name: Uploads
paths:
  /api/workflows/{id}/revisions:
    post:
      tags:
        - Workflows
      summary: Publish a version
      description: >-
        Saves the workflow's current steps as a new numbered version. The
        workflow must be active.
      operationId: workflows-publish
      parameters:
        - name: id
          in: path
          required: true
          description: The workflow id
          schema:
            type: string
            example: 6af2ce4e8207961501f59472
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
              example:
                error: false
                msg: Version published
                data:
                  id: 6af2ce518207961501f59475
                  version: 2
                  workflow_id: 6af2ce4e8207961501f59472
                  published_at: '2026-11-10T09:02:11Z'
                  ...: nodes and edges
                created: true
        '401':
          $ref: '#/components/responses/E401'
        '404':
          $ref: '#/components/responses/E404'
components:
  responses:
    E401:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: true
            msg: Invalid API key
    E404:
      description: Not found, or not yours
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: true
            msg: Workflow not found
  schemas:
    Error:
      type: object
      required:
        - error
        - msg
      properties:
        error:
          type: boolean
          example: true
        msg:
          type: string
          description: What went wrong, in plain words
        code:
          type: string
          description: >-
            A machine-readable reason, when there is one (for example
            `confirmation_required`)
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: 'Your API key: `hitl_live_…`'

````

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