Veem

Veem attachment-controller API

Attachment Controller

Documentation GitHub OpenAPI

Operations 2

GET /veem/v1.2/attachments Downloads the referenced file #

POST /veem/v1.2/attachments Uploads the external attachment for an entity Payment or Invoice #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/veem-attachment-controller-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  description: Veem REST API
  title: Veem API v1.2 Attachment Controller API
  version: v1.2.1
servers:
- url: //sandbox-api.veem.com
tags:
- description: Attachment Controller
  name: attachment-controller
paths:
  /veem/v1.2/attachments:
    get:
      deprecated: false
      operationId: downloadAttachmentUsingGET_2
      parameters:
      - allowEmptyValue: false
        description: The file name from the upload response
        in: query
        name: name
        required: false
        schema:
          type: string
      - allowEmptyValue: false
        description: The unique reference ID from the upload response
        in: query
        name: referenceId
        required: false
        schema:
          type: string
      responses:
        '200':
          content:
            application/octet-stream:
              schema:
                format: byte
                type: string
          description: OK
        '400':
          content:
            application/octet-stream:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Invalid name and referenceId combination
      summary: Downloads the referenced file
      tags:
      - attachment-controller
    post:
      deprecated: false
      operationId: uploadAttachmentUsingPOST_2
      requestBody:
        content:
          multipart/form-data:
            schema:
              properties:
                file:
                  description: file
                  format: binary
                  type: string
              required:
              - file
              type: object
        required: true
      responses:
        '201':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/FileAttachment'
          description: Created
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Unsupported file extension; Unable to upload file
      summary: Uploads the external attachment for an entity Payment or Invoice
      tags:
      - attachment-controller
components:
  schemas:
    FileAttachment:
      properties:
        name:
          description: The name of the file (including the extension)
          type: string
        referenceId:
          description: The file reference id received from Veem after file upload is complete
          type: string
        type:
          description: The type of the file
          enum:
          - ExternalInvoice
          - ProofOfPayment
          type: string
      required:
      - name
      - referenceId
      - type
      title: FileAttachment
      type: object
    ErrorResponse:
      properties:
        code:
          description: The error code, different than HTTP status codes
          format: int32
          type: integer
        error:
          description: The short message
          type: string
        message:
          description: The detailed, developer friendly message
          type: string
        timestamp:
          description: The timestamp recorded when the error occurred
          type: string
      required:
      - code
      - error
      - message
      title: ErrorResponse
      type: object