---
title: "Attach a file to a card (up to 15 MB, any type; stored privately)"
method: POST
path: "/v3/admin/issues/{id}/attachments"
tags: ["Admin > Board"]
---

# Attach a file to a card (up to 15 MB, any type; stored privately)

`POST /v3/admin/issues/{id}/attachments`

## Request

- Base URL: `https://api.rhinoartisan.com`
- URL: `https://api.rhinoartisan.com/v3/admin/issues/{id}/attachments`
- Auth: API key in header `apikey`
- TypeScript: <https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/docs/v3/admin/issues/:id/attachments/post.ts> (a function with typed inputs; its response is checked against the schema)

Multipart form with a `file`. Images show as thumbnails and the first one as the card cover; links are signed and expire in an hour.

## Path parameters

- `id` string, required

## Response `200`

The card

## Other responses

- `400`: MISSING_FILE | INVALID_FILE | FILE_TOO_LARGE

## Changes

- **2026-10-20** `d6f31d5ad933`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/changes/v3/admin/issues/:id/attachments/post.md)

---

[API](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api.md) - [All operations](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/llms.txt) - [OpenAPI document](https://skmtc.dev/rhinoartisan/apis/rhinoartisan-api/revisions/f0e1d3d69cfb?raw)