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

# Create a list folder

> Creates a folder of the given kind (`contactList` by default). List-folder names are unique per kind (409 FOLDER_NAME_TAKEN); campaign and agent folders are created in their own services and answer their codes. Put lists into the folder with `PATCH /business/lists/{listId}` (`folderId`).

Errors:
- `409` `FOLDER_NAME_TAKEN` — A folder of that kind already carries the name.
- `400` `INVALID_REQUEST` — campaign/agent kinds only: the owning service rejected the request.
- `422` `VALIDATION_FAILED` — name missing/blank/over 120 characters, type outside the enum, or an unknown body key.
- `429` `RATE_LIMITED` — The lists rate bucket (120 requests/minute, 10,000/day per token owner) is exhausted, or the owning service (campaign/agent folders) refused the call.

Requires one of the following token scopes: lists.



## OpenAPI

````yaml /openapi.json post /business/folders
openapi: 3.1.0
info:
  title: Fuse Business API
  version: 1.0.0
  description: >-
    External API for lists, campaigns, prospect search and contacts.
    Authenticate with your API token as HTTP Basic. All paths are under /api/v1.
servers:
  - url: https://api.tryfuse.ai/api/v1
    description: Production
security:
  - basicAuth: []
tags:
  - name: Lists
  - name: Custom columns
  - name: Smart columns
  - name: Exports
  - name: Campaigns
  - name: Knowledge hubs
  - name: Analytics
  - name: Website intent
  - name: Account
  - name: Prospect search
  - name: Campaign steps
  - name: Scheduled sends
  - name: Campaign templates
  - name: Agents
  - name: Research
  - name: Company search
  - name: Saved searches
  - name: Folders
  - name: Contacts
paths:
  /business/folders:
    post:
      tags:
        - Folders
      summary: Create a list folder
      description: >-
        Creates a folder of the given kind (`contactList` by default).
        List-folder names are unique per kind (409 FOLDER_NAME_TAKEN); campaign
        and agent folders are created in their own services and answer their
        codes. Put lists into the folder with `PATCH /business/lists/{listId}`
        (`folderId`).


        Errors:

        - `409` `FOLDER_NAME_TAKEN` — A folder of that kind already carries the
        name.

        - `400` `INVALID_REQUEST` — campaign/agent kinds only: the owning
        service rejected the request.

        - `422` `VALIDATION_FAILED` — name missing/blank/over 120 characters,
        type outside the enum, or an unknown body key.

        - `429` `RATE_LIMITED` — The lists rate bucket (120 requests/minute,
        10,000/day per token owner) is exhausted, or the owning service
        (campaign/agent folders) refused the call.


        Requires one of the following token scopes: lists.
      operationId: createFolder
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                name:
                  type: string
                  minLength: 1
                  maxLength: 120
                  description: >-
                    Folder name (1-120 characters); unique per kind, or the call
                    answers 409 FOLDER_NAME_TAKEN.
                type:
                  type: string
                  enum:
                    - contactList
                    - companyList
                    - campaign
                    - agent
                  default: contactList
                  description: >-
                    Kind of folder to create (default contactList): contactList
                    or companyList (list folders), campaign or agent.
              required:
                - name
      responses:
        '201':
          description: Success
          headers:
            RateLimit-Limit:
              schema:
                type: integer
              description: Requests permitted in the current window.
            RateLimit-Remaining:
              schema:
                type: integer
              description: Requests remaining in the current window.
            RateLimit-Reset:
              schema:
                type: integer
              description: Seconds until the current window resets.
          content:
            application/json:
              schema:
                type: object
                required:
                  - folder
                properties:
                  folder:
                    type: object
                    required:
                      - id
                      - name
                      - type
                    properties:
                      id:
                        type:
                          - string
                          - 'null'
                      name:
                        type: string
                      type:
                        type: string
                        enum:
                          - contactList
                          - companyList
                          - campaign
                          - agent
              example:
                folder:
                  id: 68a1f9aa9c41d20014b3f101
                  name: Q3 pipeline
                  type: contactList
        '400':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '402':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '409':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - basicAuth: []
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
            param:
              type:
                - string
                - 'null'
            doc_url:
              type:
                - string
                - 'null'
            request_id:
              type:
                - string
                - 'null'
          required:
            - code
            - message
      required:
        - error
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
      description: >-
        Your API token (`af_…`) as the Basic-auth username, with an empty
        password.

````