> ## Documentation Index > Fetch the complete documentation index at: https://docs.go.aiinsurance.io/llms.txt > Use this file to discover all available pages before exploring further. # Create Folder > Creates a folder under an owner — a configured entity (`entityType` + `entityId`) or the company level (`entityType: "company"`, no `entityId`). Optionally nest it under one of the owner's existing folders with `parentFolderId`; omit it for a top-level folder. A folder can only ever contain files and subfolders of its own owner. **Required permission:** `company.file:create` ## OpenAPI ````yaml /openapi/generated-external-api.yaml post /api/v1/companies/{companyId}/folders openapi: 3.0.3 info: title: AI Insurance External API description: External API for AI Insurance platform version: 1.0.0 contact: email: support@aiinsurance.io servers: - url: https://go.aiinsurance.io description: Production security: - ApiKeyAuth: [] paths: /api/v1/companies/{companyId}/folders: post: tags: - Company Files summary: Create Folder description: | Creates a folder under an owner — a configured entity (`entityType` + `entityId`) or the company level (`entityType: "company"`, no `entityId`). Optionally nest it under one of the owner's existing folders with `parentFolderId`; omit it for a top-level folder. A folder can only ever contain files and subfolders of its own owner. **Required permission:** `company.file:create` operationId: createFolder parameters: - $ref: '#/components/parameters/companyId' requestBody: required: true content: application/json: schema: type: object required: - entityType - name properties: entityType: type: string enum: - event - exposure - quote - submission - person - organization - policy - company description: The folder owner's entity type entityId: type: string format: uuid nullable: true description: > The owner entity's id. Required for every `entityType` except `company` (omit or send null for company-level folders). parentFolderId: type: string format: uuid nullable: true description: Parent folder to nest under (omit or null for top-level) name: type: string description: Folder name (must be non-empty) examples: companyTopLevelFolder: summary: Company-level top-level folder value: entityType: company name: Claims Documents nestedEntityFolder: summary: Exposure-owned subfolder value: entityType: exposure entityId: 550e8400-e29b-41d4-a716-446655440010 parentFolderId: 550e8400-e29b-41d4-a716-446655440001 name: 2026 Q1 responses: '201': description: Folder created successfully content: application/json: schema: type: object properties: id: type: string format: uuid description: Id of the created folder examples: success: summary: Folder created value: id: 550e8400-e29b-41d4-a716-446655440001 '400': description: Bad Request — Validation error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: emptyName: summary: Empty folder name (rejected by the request validator) value: error: code: InvalidProperties message: 'name: The value is an empty string' userMessages: - The value is an empty string details: - field: name message: The value is an empty string whitespaceName: summary: >- Whitespace-only folder name (rejected by the operations layer) value: error: code: BadRequest message: Folder name must not be empty userMessages: - Folder name must not be empty wrongOwnerParent: summary: Parent folder belongs to a different owner value: error: code: BadRequest message: Folder does not belong to the file owner '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': description: Owner entity or parent folder not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: parentNotFound: summary: Parent folder does not exist value: error: code: NotFound message: 'Folder not found: 550e8400-e29b-41d4-a716-446655440001' '500': $ref: '#/components/responses/InternalServerError' components: parameters: companyId: name: companyId in: path required: true schema: type: string format: uuid description: Company identifier schemas: ErrorResponse: type: object description: Standard error response for all external API endpoints required: - error properties: error: type: object required: - code - message properties: code: type: string description: Machine-readable error code example: VALIDATION_ERROR message: type: string description: Human-readable error message example: 'submissionId: Required field is missing' userMessages: type: array description: >- Clean, verbatim-displayable messages — one entry per failure, free of error-code tags, field paths, and internal noise. Suitable for showing to end users as-is. items: type: string example: - Exposures of type 'company' require an address details: type: array description: Additional details for validation errors (field-level errors) items: type: object properties: field: type: string description: The field that caused the error example: submissionId message: type: string description: Description of the field error example: Required field is missing responses: Unauthorized: description: Unauthorized - Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: missingApiKey: summary: Missing API key value: error: code: AuthenticationError message: API key authentication required userMessages: - API key authentication required invalidApiKey: summary: >- Invalid API key (e.g. unknown key, or a Bearer token used instead of an API key) value: error: code: AuthenticationError message: Invalid API key userMessages: - Invalid API key Forbidden: description: Forbidden - Insufficient permissions content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: insufficientPermissions: summary: Insufficient permissions value: error: code: AuthorizationError message: User is not authorized to perform the requested action userMessages: - User is not authorized to perform the requested action companyMismatch: summary: A valid API key naming another company in the URL value: error: code: AuthorizationError message: API key is not scoped to the requested company userMessages: - API key is not scoped to the requested company InternalServerError: description: Internal Server Error - Unexpected error occurred content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: internalError: summary: Unexpected server error value: error: code: UncaughtActionError message: Uncaught error occurred in userMessages: - An unexpected error occurred. Please try again later. securitySchemes: ApiKeyAuth: type: apiKey in: header name: Authorization description: >- API key authentication. Send your raw API key as the `Authorization` header value with NO scheme prefix — `Authorization: YOUR-API-KEY`. Do NOT prefix it with `Bearer ` or `ApiKey `, and do not use an `X-API-Key` header; those are not accepted. ````