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

# Create a link variant

> Requires url.create. Adds a page from the link project as a variant; defaults weight to 1 and isActive to true. A page-owned link rejects additional variants with 409. Sales platform variants require a checkout page and derive the platform from that page. The API key creator must belong to the project team.



## OpenAPI

````yaml https://api.trackup.me/openapi.json post /v1/urls
openapi: 3.1.0
info:
  title: Trackup API
  description: >-
    API-key-accessible Trackup operations. Send your key in the `X-Api-Key`
    header.


    Keys belong to a team. `X-Team-Id` is not required; if supplied, it must
    match that team.


    Each operation lists its required key permission. The key creator must
    remain a team member and normally hold that permission. The ingest-only
    permissions `visitor.create`, `conversion.create`, and `request.create` do
    not need to be held by the creator.


    Project access and selection are described per operation. Session-only
    account, administration and OAuth operations are not part of this reference.


    The same operations are available as MCP tools at `/mcp` (Streamable HTTP).
    Authenticate with `X-Api-Key` or connect through OAuth, which issues an API
    key on consent.


    Schema validation errors return HTTP 422 with an `errors` object. Other
    errors generally contain `error` and `message`; operation-specific responses
    describe exceptions.
  version: 1.0.0
servers:
  - url: /
    description: Current API environment
security:
  - ApiKey: []
paths:
  /v1/urls:
    post:
      tags:
        - URLs
      summary: Create a link variant
      description: >-
        Requires url.create. Adds a page from the link project as a variant;
        defaults weight to 1 and isActive to true. A page-owned link rejects
        additional variants with 409. Sales platform variants require a checkout
        page and derive the platform from that page. The API key creator must
        belong to the project team.
      operationId: createUrl
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                linkId:
                  type: string
                  format: uuid
                pageId:
                  type: string
                  format: uuid
                name:
                  type: string
                  minLength: 1
                  maxLength: 255
                weight:
                  type: integer
                  minimum: 0
                isActive:
                  type: boolean
                salesPlatformId:
                  type:
                    - string
                    - 'null'
                  format: uuid
              required:
                - linkId
                - pageId
                - name
      responses:
        '201':
          description: Created variant.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CreatedUrl'
        '400':
          description: Malformed request or an invalid operation.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '401':
          description: The X-Api-Key header is missing or the API key is invalid.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '403':
          description: >-
            The key is expired, revoked, lacks permission, or its creator no
            longer has the required team access. A conflicting X-Team-Id is also
            rejected.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '404':
          description: >-
            The requested resource was not found or is outside the permitted
            scope.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '409':
          description: The operation conflicts with existing data.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
        '422':
          description: >-
            Invalid input. Each field path maps to its first validation message;
            _form identifies an object-level error.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationError'
        '500':
          description: An unexpected error occurred.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiError'
components:
  schemas:
    CreatedUrl:
      type: object
      properties:
        id:
          type: string
          format: uuid
        pageId:
          type: string
          format: uuid
        salesPlatformId:
          type:
            - string
            - 'null'
          format: uuid
        name:
          type: string
        weight:
          type: number
        isActive:
          type: boolean
        linkId:
          type: string
          format: uuid
        createdAt:
          type: string
          format: date-time
      required:
        - id
        - pageId
        - salesPlatformId
        - name
        - weight
        - isActive
        - linkId
        - createdAt
      example:
        id: 55555555-5555-4555-8555-555555555555
        pageId: 33333333-3333-4333-8333-333333333333
        salesPlatformId: null
        name: Landing A
        weight: 50
        isActive: true
        linkId: 44444444-4444-4444-8444-444444444444
        createdAt: '2026-10-26T12:00:00.000Z'
    ApiError:
      type: object
      properties:
        error:
          type: string
        message:
          type: string
      required:
        - error
        - message
      additionalProperties: true
    ValidationError:
      type: object
      properties:
        errors:
          type: object
          additionalProperties:
            type: string
      required:
        - errors
  securitySchemes:
    ApiKey:
      type: apiKey
      in: header
      name: X-Api-Key

````

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