> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Upload an attachment

> Upload a file attachment that can be used in Devin sessions.

## Permissions

Requires a service user with the `UseDevinSessions` permission at the organization level.


## OpenAPI

````yaml v3-openapi.yaml POST /v3/organizations/{org_id}/attachments
openapi: 3.1.0
info:
  description: Devin v3 API with Service User authentication and RBAC
  title: Devin API v3
  version: 3.0.0
servers: []
security:
  - bearerAuth: []
paths:
  /v3/organizations/{org_id}/attachments:
    post:
      tags:
        - attachments
      summary: Upload an attachment
      description: Upload a file attachment that can be used in Devin sessions.
      operationId: handle_upload_attachment_v3_organizations__org_id__attachments_post
      parameters:
        - description: 'Organization ID (prefix: org-)'
          in: path
          name: org_id
          required: true
          schema:
            example: org-abc123def456
            title: Org Id
            type: string
      requestBody:
        content:
          multipart/form-data:
            schema:
              $ref: >-
                #/components/schemas/Body_handle_upload_attachment_v3_organizations__org_id__attachments_post
        required: true
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AttachmentResponse'
          description: Successful Response
        '401':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Unauthorized
        '403':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Forbidden
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Not Found
        '409':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Conflict
        '422':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Unprocessable Content
        '429':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProblemDetail'
          description: Too Many Requests
components:
  schemas:
    Body_handle_upload_attachment_v3_organizations__org_id__attachments_post:
      properties:
        file:
          format: binary
          title: File
          type: string
      required:
        - file
      title: Body_handle_upload_attachment_v3_organizations__org_id__attachments_post
      type: object
    AttachmentResponse:
      properties:
        attachment_id:
          title: Attachment Id
          type: string
        name:
          title: Name
          type: string
        url:
          title: Url
          type: string
      required:
        - attachment_id
        - name
        - url
      title: AttachmentResponse
      type: object
    ProblemDetail:
      description: >-
        RFC 9457 application/problem+json error body for the v3 API.


        detail is retained from the legacy {"detail": ...} body for back-compat;
        the

        other members are additive. errors carries field-level validation
        failures

        (422 only).
      properties:
        detail:
          anyOf:
            - type: string
            - type: 'null'
          description: A human-readable explanation specific to this occurrence.
          title: Detail
        errors:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          description: Field-level validation errors (422 responses only).
          title: Errors
        instance:
          anyOf:
            - type: string
            - type: 'null'
          description: A URI reference (the request path) for this occurrence.
          title: Instance
        status:
          description: The HTTP status code.
          title: Status
          type: integer
        title:
          description: A short, human-readable summary of the problem type.
          title: Title
          type: string
        type:
          default: about:blank
          description: A URI reference identifying the problem type.
          title: Type
          type: string
      required:
        - title
        - status
      title: ProblemDetail
      type: object
  securitySchemes:
    bearerAuth:
      description: 'Service User credential (prefix: cog_)'
      scheme: bearer
      type: http

````