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

# Validate Workflow

> Validate a workflow definition without executing it

Checks the current workflow definition for structural errors — missing required fields, invalid node configurations, broken edge references — without placing a call or creating a run.

If invalid, the response includes a list of errors each with a `kind` (`node`, `edge`, or `workflow`), the offending `id`, the `field`, and a human-readable `message`. See [Errors](/api-reference/errors) for the full error schema.


## OpenAPI

````yaml POST /api/v1/workflow/{workflow_id}/validate
openapi: 3.1.0
info:
  title: Bandwidth Agent Builder API
  version: v1
  description: >-
    Manage agents, place calls, and retrieve conversation results in your
    workspace.
servers:
  - url: https://agents.labs.bandwidth.com
    description: Workspace API
security: []
paths:
  /api/v1/workflow/{workflow_id}/validate:
    post:
      tags:
        - agents
      summary: Validate Workflow
      description: Validate a workflow definition without executing it
      operationId: validate_workflow_api_v1_workflow__workflow_id__validate_post
      parameters:
        - name: workflow_id
          in: path
          required: true
          schema:
            type: integer
            title: Workflow Id
        - name: X-VOAI-ORGANIZATION-ID
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: X-Voai-Organization-Id
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidateWorkflowResponse'
        '404':
          description: Not found
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - LabsAuth: []
        - LabsApiKey: []
components:
  schemas:
    ValidateWorkflowResponse:
      properties:
        is_valid:
          type: boolean
          title: Is Valid
        errors:
          items:
            $ref: '#/components/schemas/WorkflowError'
          type: array
          title: Errors
      type: object
      required:
        - is_valid
        - errors
      title: ValidateWorkflowResponse
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    WorkflowError:
      properties:
        kind:
          $ref: '#/components/schemas/ItemKind'
        id:
          anyOf:
            - type: string
            - type: 'null'
          title: Id
        field:
          anyOf:
            - type: string
            - type: 'null'
          title: Field
        message:
          type: string
          title: Message
      type: object
      required:
        - kind
        - id
        - field
        - message
      title: WorkflowError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    ItemKind:
      type: string
      enum:
        - node
        - edge
        - workflow
      title: ItemKind
  securitySchemes:
    LabsAuth:
      type: http
      scheme: bearer
    LabsApiKey:
      type: apiKey
      in: header
      name: X-BW-LABS-AGENTS-API-KEY

````