> ## Documentation Index > Fetch the complete documentation index at: https://docs.axilio.ai/llms.txt > Use this file to discover all available pages before exploring further. # Get a file > Returns one file from the org's library, with a short-lived read URL once its bytes are ready. A message's media part names its file by id; this is where that id resolves. Another org's file id reads as not found. Minimum role required: Viewer ## OpenAPI ````yaml /api-reference/openapi-backend.json get /files/{file_id} openapi: 3.1.0 info: description: Axilio backend HTTP API. title: Axilio API version: 0.155.0 servers: - url: https://api.axilio.ai/api/v1 description: Production security: [] tags: - name: Agents - name: API Keys - name: Billing - name: Conversations - name: Files - name: Messages - name: Models - name: Organization - name: Phones - name: Runs - name: Sessions - name: Skill - name: Usage - name: Webhooks paths: /files/{file_id}: get: tags: - Files summary: Get a file description: >- Returns one file from the org's library, with a short-lived read URL once its bytes are ready. A message's media part names its file by id; this is where that id resolves. Another org's file id reads as not found. operationId: files_get parameters: - description: file identifier in: path name: file_id required: true schema: description: file identifier format: uuid type: string responses: '200': content: application/json: schema: $ref: '#/components/schemas/FileSummary' description: OK '404': content: application/problem+json: schema: $ref: '#/components/schemas/V2ErrorModel' description: Not Found '422': content: application/problem+json: schema: $ref: '#/components/schemas/V2ErrorModel' description: Unprocessable Entity '500': content: application/problem+json: schema: $ref: '#/components/schemas/V2ErrorModel' description: Internal Server Error security: - apiKeyAuth: [] components: schemas: FileSummary: additionalProperties: false description: One file in the org's library. properties: attachment_url: description: >- Short-lived signed URL that downloads the file as an attachment under its name. Present only for ready files. type: string bytes_transferred: description: >- Bytes moved so far for an in-flight phone transfer. Absent until the phone reports progress. format: int64 type: integer capture_error: description: >- Reason the phone's upload failed, when it did. Present for captures and message attachments. type: string capture_state: description: >- Upload lifecycle of a file the phone sends itself: detected/uploading while in flight, ready when usable, or a terminal skip/failure with its reason. Present for captures and message attachments. enum: - detected - uploading - ready - skipped_size - skipped_quota - skipped_type - dropped_teardown - failed type: string checksum: description: >- SHA-256 of the bytes, computed on the phone while uploading. Present for captures and message attachments. type: string created_at: description: >- When the file was registered: upload registration, or capture detection. format: date-time type: string display_url: description: >- Short-lived signed URL for a full-resolution JPEG of a HEIC or HEIF original, for display where a browser cannot draw the original. Absent for other types and until generated. type: string download_url: description: >- Short-lived signed URL to read the file's bytes. Present only for ready files; re-list to refresh an expired one. type: string duration_seconds: description: Video duration in seconds. format: int64 type: integer filename: description: >- Original filename; used as the display name when the file lands on a phone. type: string height: description: Intrinsic pixel height of the source. format: int64 type: integer id: description: >- File identifier. Unique across the whole library; deliverable to a phone regardless of source. type: string message_id: description: >- The message this file was attached to. Present for message attachments once the message is stored; a file whose message never arrived still names its phone. type: string mime_type: description: Declared MIME type, pinned by the presigned upload. type: string on_phone_count: description: >- Distinct phones currently holding or receiving a delivered copy. Informational: deleting the file from the library does not remove these. format: int64 type: integer phone_id: description: >- The phone that received the message this file was attached to. Present for message attachments. type: string preview_state: description: >- Whether the preview exists, is still being generated, or will never be available for this format. enum: - processing - ready - unavailable type: string reel_url: description: >- Short-lived signed URL for the animated hover preview. Videos only; absent until generated. type: string session_id: description: Session that produced the file. Present only for captures. type: string size_bytes: description: Declared size in bytes, pinned by the presigned upload. format: int64 type: integer source: description: >- How the file entered the library: upload (put in directly), capture (lifted off a session), or message (attached to a message one of the org's dedicated phones received). enum: - upload - capture - message type: string status: description: >- uploading until the object is verified in storage, then ready. For a capture, read capture_state for the fuller lifecycle. enum: - uploading - ready type: string surface: description: >- Which surface a capture or message attachment came off (phone today). Absent for a direct upload. enum: - phone type: string thumbnail_url: description: >- Short-lived signed URL for the generated preview image. Absent while generation is pending, and permanently absent for formats without a preview. type: string width: description: Intrinsic pixel width of the source. format: int64 type: integer required: - id - source - filename - mime_type - size_bytes - status - created_at - on_phone_count - preview_state type: object V2ErrorModel: additionalProperties: false description: >- Error response, following RFC 9457 (Problem Details for HTTP APIs). Returned with a application/problem+json content type. properties: detail: description: >- A human-readable explanation specific to this occurrence of the problem. examples: - Property foo is required but is missing. type: string errors: description: Optional list of individual error details items: $ref: '#/components/schemas/V2ErrorDetail' type: - array - 'null' instance: description: >- A URI reference that identifies the specific occurrence of the problem. examples: - https://example.com/error-log/abc123 format: uri type: string status: description: HTTP status code examples: - 400 format: int64 type: integer title: description: >- A short, human-readable summary of the problem type. This value should not change between occurrences of the error. examples: - Bad Request type: string type: default: about:blank description: A URI reference to human-readable documentation for the error. examples: - https://example.com/errors/example format: uri type: string type: object V2ErrorDetail: additionalProperties: false description: >- One specific problem within an error response, locating the offending part of the request. properties: location: description: >- Where the error occurred, e.g. 'body.items[3].tags' or 'path.thing-id' type: string message: description: Error message text type: string value: description: The value at the given location type: object securitySchemes: apiKeyAuth: description: Customer API key (axl_ prefix). in: header name: X-Axilio-Api-Key type: apiKey ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.