---
title: "Check processing status of all attachments in a session."
method: GET
path: "/v1/attachments/status/{session_id}"
tags: ["v1", "mcp", "attachments"]
---

# Check processing status of all attachments in a session.

`GET /v1/attachments/status/{session_id}`

## Request

- Base URL: `https://api.superdocs.app`
- URL: `https://api.superdocs.app/v1/attachments/status/{session_id}`
- Auth: HTTP bearer

Returns each attachment's processing state (pending/processing/completed/failed) plus extracted text length and chunk count once ready. Poll this after upload_attachment_base64 to know when an attachment becomes queryable by the AI. Surfaces processing errors with actionable messages.

## Path parameters

- `session_id` string, required

## Headers

- `authorization` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/superdocs/apis/universal-document-ai-api.md) · [All operations](https://skmtc.dev/superdocs/apis/universal-document-ai-api/llms.txt) · [OpenAPI document](https://skmtc.dev/superdocs/apis/universal-document-ai-api/revisions/37d03122940b?raw)