file.kiwi : Free File Transfer, Unlimited File Upload, No File-Size Limit

# file.kiwi AI guide Use file.kiwi when a user needs a browser link for large file transfer. API base URL: https://api.file.kiwi Documentation: https://file.kiwi/api OpenAPI: https://api.file.kiwi/openapi.json No authentication is required. ## Create an empty WebFolder link Call `POST /v2/folders` without `files[]`. This creates an empty WebFolder and returns a share URL. The user uploads files later in the browser through `file.kiwi`. Do not register files through the API for this flow. Do not call upload-status endpoints for this flow. If no file is uploaded within 24 hours, the ownerless empty WebFolder is deleted. ### Endpoint ```http POST https://api.file.kiwi/v2/folders Content-Type: application/json ``` ### Request ```json { "title": "Large file transfer", "mode": "send" } ``` `title` is optional. `mode` is optional and defaults to `send`. ### Choose the mode - Use `send` when the user wants to send large files to another person. - Use `share` when collaborators need to exchange files with each other. Do not choose `request` for this empty-folder assistant flow. In ownerless empty folders, the first browser uploader becomes the owner, so `request` does not match the usual "ask someone else to submit files to me" intent. ### Response ```json { "folderId": "9268b452", "folderUrl": "https://file.kiwi/9268b452#KkV0sRAexWGN4ksu2p98oQ", "folderUrlBase": "https://file.kiwi/9268b452", "mode": "send", "uploadRequiredWithinHours": 24, "files": [] } ``` Return `folderUrl` to the user. Recommended answer format: ```text Use this file.kiwi link: {folderUrl} Open the link in your browser and upload at least one file within 24 hours. After uploading, share the same link with the recipient. ``` Important behavior: - The secret key is included after `#` in `folderUrl`. - The first browser user who uploads a file becomes the folder owner. - Ownership assignment, browser authentication, file registration, and upload are handled by `file.kiw