Zoho CRM Files API

openapi: 3.2.0
info:
  title: Files API
  description: Zoho CRM Files API — endpoints to upload and retrieve files. POST /crm/v8/files accepts multipart/form-data with a required 'file' field (binary) and returns upload metadata (id, name, status). GET /crm/v8/files?id={id} returns the binary content for the specified file.
  version: '8'
servers:
- url: https://zohoapis.{dc}/crm/{version}
  description: API Server URL
  variables:
    dc:
      enum:
      - com
      - eu
      - in
      - cn
      - au
      default: com
      description: API Server URL TLD
    version:
      default: v8
      description: API Version
security:
- iam-oauth2-schema:
  - ZohoCRM.files.READ
tags:
- name: Files
paths:
  /files:
    post:
      operationId: uploadFiles
      summary: Uploads a file to ZFS
      description: Uploads a file to Zoho File System (ZFS) and returns the file metadata including the file ID which can be used to associate the file with records in Zoho CRM. The file is uploaded using multipart/form-data with a required 'file' field containing the binary data of the file to be uploaded. The response includes the file ID, name, status, and other details. Can upload 10 files in a single request by repeating the 'file' field. Maximum file size is 20 MB.
      security:
      - iam-oauth2-schema:
        - ZohoCRM.files.CREATE
      parameters:
      - name: inline
        in: query
        required: false
        schema:
          type: string
          enum:
          - inline
        description: 'To upload inline images. Possible value: inline'
      requestBody:
        content:
          multipart/form-data:
            schema:
              description: Multipart form data for uploading one or more files to Zoho File System
              type: object
              properties:
                file:
                  type: array
                  items:
                    type: string
                    format: binary
                    description: Binary content of the file to be uploaded
                  maxItems: 10
                  description: Upload one or more files using repeated 'file' keys.
              required:
              - file
              additionalProperties: false
        required: true
      responses:
        '200':
          description: Successfully uploaded one or more files to Zoho File System. Returns an array of upload results, one per file, containing the file ID for record association and upload status confirmation.
          content:
            application/json:
              schema:
                description: Response schema for successful file upload to Zoho File System
                type: object
                properties:
                  data:
                    type: array
                    description: Array of upload results, one object per successfully uploaded file. Order corresponds to the order of files in the multipart request.
                    minItems: 1
                    maxItems: 10
                    items:
                      type: object
                      description: Upload result for a single file
                      properties:
                        status:
                          type: string
                          enum:
                          - success
                          description: Upload result status indicator
                        code:
                          type: string
                          enum:
                          - SUCCESS
                          description: Machine-readable success code
                        message:
                          type: string
                          maxLength: 500
                          description: Human-readable success message confirming the upload
                        details:
                          type: object
                          description: File metadata for the uploaded file, including the unique identifier for CRM record association
                          properties:
                            name:
                              type: string
                              maxLength: 500
                              description: Original filename as provided in the upload request
                              minLength: 1
                            id:
                              type: string
                              maxLength: 100
                              description: Unique file identifier in ZFS. Use this ID to attach the file to CRM records or retrieve it via GET /files
                              minLength: 1
                          required:
                          - name
                          - id
                          additionalProperties: false
                      required:
                      - status
                      - code
                      - message
                      - details
                      additionalProperties: false
                required:
                - data
                additionalProperties: false
        '400':
          description: Bad Request - The file upload request is malformed or invalid. Returns `failure_in_attachment_handling` when the 'file' field is missing or contains no file data. Returns `INVALID_REQUEST` when request constraints are violated, such as exceeding the 10-file limit per request.
          content:
            application/json:
              schema:
                oneOf:
                - type: object
                  description: Returned when the 'file' field is missing from the multipart/form-data request or when a 'file' field is present but contains no actual file data.
                  properties:
                    status:
                      type: string
                      enum:
                      - error
                      description: Error status indicator
                    code:
                      type: string
                      enum:
                      - failure_in_attachment_handling
                      description: Indicates missing or empty 'file' field in the upload request
                    message:
                      type: string
                      description: Human-readable error message prompting proper file upload
                      enum:
                      - Problem in uploading attachment. kindly upload the file properly
                    details:
                      type: object
                      description: Additional error context. Typically empty for this error type.
                      additionalProperties: false
                  required:
                  - status
                  - code
                  - message
                  - details
                  additionalProperties: false
                - type: object
                  description: Returned when the request violates API constraints, most commonly when more than 10 files are included in a single upload request.
                  properties:
                    status:
                      type: string
                      enum:
                      - error
                      description: Error status indicator
                    code:
                      type: string
                      enum:
                      - INVALID_REQUEST
                      description: Indicates the request violates API constraints (e.g., file count limit exceeded)
                    message:
                      type: string
                      description: Generic validation error message requesting verification of request parameters
                      enum:
                      - unable to process your request. please verify whether you have entered proper method name, parameter and parameter values.
                    details:
                      type: object
                      description: Additional error context. Typically empty for this error type.
                      additionalProperties: false
                  required:
                  - status
                  - code
                  - message
                  - details
                  additionalProperties: false
        '415':
          description: Unsupported Media Type / File Size Exceeded - Returned when one or more uploaded files exceed the maximum allowed size of 20 MB per file. The API rejects the entire request if any single file violates this constraint.
          content:
            application/json:
              schema:
                oneOf:
                - type: object
                  description: Returned when any file in the upload request exceeds the 20 MB size limit. The entire upload is rejected, even if other files are within the allowed size.
                  properties:
                    status:
                      type: string
                      enum:
                      - error
                      description: Error status indicator
                    code:
                      type: string
                      enum:
                      - FILE_SIZE_MORE_THAN_ALLOWED_SIZE
                      description: Indicates one or more files exceed the 20 MB maximum file size limit
                    message:
                      type: string
                      description: Human-readable error message prompting file size verification
                      enum:
                      - Please check if the size of the file is in the correct range
                    details:
                      type: object
                      description: Additional error context. Typically empty for this error type.
                      additionalProperties: false
                  required:
                  - status
                  - code
                  - message
                  - details
                  additionalProperties: false
      tags:
      - Files
    get:
      operationId: getFile
      summary: Retrieves a file from ZFS
      description: Retrieves the binary content of a file stored in Zoho File System (ZFS) using its unique file ID. The file ID is provided as a required query parameter 'id'. If the file exists, the API returns the file's binary data along with appropriate headers indicating the MIME type and content disposition for download. If the file ID does not correspond to any file in ZFS, a 204 No Content response is returned. This endpoint is used to download files that have been previously uploaded to ZFS and associated with Zoho CRM records.
      security:
      - iam-oauth2-schema:
        - ZohoCRM.files.READ
      parameters:
      - name: id
        in: query
        required: true
        description: Unique identifier of the file to retrieve
        schema:
          type: string
          maxLength: 100
      responses:
        '200':
          description: Successfully uploaded file to Zoho File System. Returns the uploaded file as binary content with appropriate headers indicating the file type and disposition.
          headers:
            Content-Type:
              description: MIME type of the uploaded file (e.g., application/pdf, image/png, text/plain).
              schema:
                type: string
                maxLength: 500
                description: MIME type of the file including charset if applicable
              example: image/png;charset=UTF-8
            Content-Disposition:
              description: Indicates how the content should be displayed. Includes the original filename for download purposes.
              schema:
                type: string
                maxLength: 500
                description: Content disposition with original filename
              example: attachment;filename*=UTF-8''image %282%29.png
          content:
            application/octet-stream:
              schema:
                type: string
                format: binary
                description: Binary content of the uploaded file.
        '204':
          description: No Content - Returned when the provided file ID does not match any file in the Zoho File System. This occurs when the 'id' parameter contains an invalid file identifier, an empty string, or references a file that has been deleted or never existed.
        '400':
          description: Bad Request - The file retrieval request is missing required parameters. Returns `REQUIRED_PARAM_MISSING` when the 'id' query parameter is not included in the request.
          content:
            application/json:
              schema:
                type: object
                description: Returned when the required 'id' query parameter is not present in the request URL.
                properties:
                  status:
                    type: string
                    enum:
                    - error
                    description: Error status indicator
                  code:
                    type: string
                    enum:
                    - REQUIRED_PARAM_MISSING
                    description: Indicates a required parameter is missing from the request
                  message:
                    type: string
                    description: Human-readable error message indicating a required parameter is missing
                    enum:
                    - One of the expected parameter is missing
                  details:
                    type: object
                    description: Additional error context identifying the missing parameter
                    properties:
                      param_name:
                        type: string
                        enum:
                        - id
                        description: Name of the missing required parameter
                    required:
                    - param_name
                    additionalProperties: false
                required:
                - status
                - code
                - message
                - details
                additionalProperties: false
      tags:
      - Files
components:
  securitySchemes:
    iam-oauth2-schema:
      type: oauth2
      flows:
        authorizationCode:
          authorizationUrl: https://accounts.zoho.com/oauth/v2/auth
          tokenUrl: https://accounts.zoho.com/oauth/v2/token
          refreshUrl: https://accounts.zoho.com/oauth/v2/token
          scopes:
            ZohoCRM.files.CREATE: Create and upload files in Zoho CRM
            ZohoCRM.files.READ: Read and download files from Zoho CRM