> ## 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. # Get Download URL > Mints a short-lived signed read URL for a `ready` file. Fetch the bytes with a plain `GET` of `url` — they come straight from cloud storage, never through this API. The URL is signed with an `attachment; filename=""` content disposition and expires at `expiresAt` (15 minutes); request a fresh one instead of caching it. Replaces the removed `GET /files/{fileId}/content` byte stream. Only `ready` files can be downloaded — a pending (never finalized) upload is a `409`. **Required permission:** `company.file:download` ## OpenAPI ````yaml /openapi/generated-external-api.yaml get /api/v1/companies/{companyId}/files/{fileId}/download-url 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}/download-url: get: tags: - Company Files summary: Get Download URL description: | Mints a short-lived signed read URL for a `ready` file. Fetch the bytes with a plain `GET` of `url` — they come straight from cloud storage, never through this API. The URL is signed with an `attachment; filename=""` content disposition and expires at `expiresAt` (15 minutes); request a fresh one instead of caching it. Replaces the removed `GET /files/{fileId}/content` byte stream. Only `ready` files can be downloaded — a pending (never finalized) upload is a `409`. **Required permission:** `company.file:download` operationId: getCompanyFileDownloadUrl parameters: - $ref: '#/components/parameters/companyId' - $ref: '#/components/parameters/fileId' responses: '200': description: Signed download URL content: application/json: schema: type: object properties: url: type: string description: Short-lived signed URL to GET the file bytes from expiresAt: type: string format: date-time description: ISO instant the URL stops working fileName: type: string description: >- The version's original filename (also signed into the URL's content disposition) contentType: type: string description: MIME type of the file byteSize: type: integer description: Size of the file in bytes examples: success: summary: Download URL value: url: >- https://storage.googleapis.com/bucket/companies/.../files/...?X-Goog-Expires=900&X-Goog-Signature=... expiresAt: '2026-06-10T09:30:00.000Z' fileName: master-agreement.pdf contentType: application/pdf byteSize: 482133 '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' '409': description: Conflict — the file is not ready for download content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: notReady: summary: Pending (never finalized) upload value: error: code: Conflict message: >- File is not ready for download: 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 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. 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 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. ````