---
title: "Add Attachment"
method: POST
path: "/api/cards/{card_id}/attachments"
tags: ["dashboards"]
---

# Add Attachment

`POST /api/cards/{card_id}/attachments`

## Request

- Base URL: `https://app.ctlsurf.com` (the document declares no server; this is the origin it was published from)
- URL: `https://app.ctlsurf.com/api/cards/{card_id}/attachments`
- Auth: HTTP bearer

## Path parameters

- `card_id` string, uuid, required

## Request body

- AttachmentCreate
  - `file_id` string, uuid, required
  - `label` string, nullable
  - `role` 'draft' | 'sent' | 'client_redline' | 'signed' | 'amendment' | 'backup' | 'other'
  - `source` 'upload' | 'page_file' | 'agent', nullable

## Response `201`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/ctlsurf/apis/notebook-control-plane.md) · [All operations](https://skmtc.dev/ctlsurf/apis/notebook-control-plane/llms.txt) · [OpenAPI document](https://skmtc.dev/ctlsurf/apis/notebook-control-plane/revisions/ddfbbe20d5ce?raw)