> ## 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. # List File Versions > Returns a file's version history — every finalized (`ready`) version plus any in-flight `pending` re-upload — newest first, with the current version flagged. Each row describes THAT version's immutable bytes (`fileName`, `contentType`, `byteSize` can differ across versions of one file); only a `ready` version is downloadable, and the download URL always serves the current version. **Required permission:** `company.file:read` ## OpenAPI ````yaml /openapi/generated-external-api.yaml get /api/v1/companies/{companyId}/files/{fileId}/versions 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}/files/{fileId}/versions: get: tags: - Company Files summary: List File Versions description: > Returns a file's version history — every finalized (`ready`) version plus any in-flight `pending` re-upload — newest first, with the current version flagged. Each row describes THAT version's immutable bytes (`fileName`, `contentType`, `byteSize` can differ across versions of one file); only a `ready` version is downloadable, and the download URL always serves the current version. **Required permission:** `company.file:read` operationId: listCompanyFileVersions parameters: - $ref: '#/components/parameters/companyId' - $ref: '#/components/parameters/fileId' responses: '200': description: The file's version history, newest first content: application/json: schema: type: object properties: versions: type: array items: $ref: '#/components/schemas/CompanyFileVersion' examples: success: summary: Two versions, the newer one current value: versions: - versionId: 550e8400-e29b-41d4-a716-446655440022 fileName: loss-run-revised.pdf contentType: application/pdf byteSize: 118220 state: ready isCurrent: true createdAt: '2026-07-20T14:05:00.000Z' - versionId: 550e8400-e29b-41d4-a716-446655440021 fileName: loss-run.pdf contentType: application/pdf byteSize: 102400 state: ready isCurrent: false createdAt: '2026-06-10T09:15:00.000Z' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '404': description: File not found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: notFound: summary: File does not exist value: error: code: NotFound message: 'File not found: 550e8400-e29b-41d4-a716-446655440020' '500': $ref: '#/components/responses/InternalServerError' components: parameters: companyId: name: companyId in: path required: true schema: type: string format: uuid description: Company identifier fileId: name: fileId in: path required: true schema: type: string format: uuid description: File identifier schemas: CompanyFileVersion: type: object description: > One row of a file's version history. `fileName`, `contentType`, and `byteSize` describe THIS version's immutable bytes — they can differ across versions of one file. `isCurrent` marks the version the file currently points at (the one the download URL serves). Only a `ready` version is downloadable. properties: versionId: type: string format: uuid description: >- Version identifier — pass it to finalize (for a pending version) or to a per-version download fileName: type: string description: This version's original filename contentType: type: string description: MIME type of this version's bytes byteSize: type: integer description: Size of this version's bytes in bytes state: type: string enum: - pending - ready - quarantined - infected description: > The version's lifecycle state. `pending` = an in-flight re-upload (bytes not yet finalized); `ready` = finalized and downloadable; `quarantined` = malware scan verdict outstanding; `infected` = malware detected (permanently not downloadable). isCurrent: type: boolean description: >- Whether this is the file's current version (the one the download URL serves) createdAt: type: string format: date-time description: When this version was uploaded (ISO 8601) 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. ````