> ## 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.

# Check a join code

> Shows which workflow a join code leads to, without joining.



## OpenAPI

````yaml POST /api/join/{code}/validate
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/join/{code}/validate:
    post:
      tags:
        - Reviewers
      summary: Check a join code
      description: Shows which workflow a join code leads to, without joining.
      operationId: reviewers-validate-code
      parameters:
        - name: code
          in: path
          required: true
          description: A join code
          schema:
            type: string
            example: HITL-422WCA
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                type: object
              example:
                error: false
                msg: Invite is valid
                data:
                  invite_code: HITL-422WCA
                  usage_count: 3
                  max_uses: 0
                  expires_at: null
                  member_count: 4
        '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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