---
title: "List a thread message's attachments"
method: GET
path: "/v1/email/threads/{thread_id}/messages/{message_id}/attachments"
tags: ["email-threads"]
---

# List a thread message's attachments

`GET /v1/email/threads/{thread_id}/messages/{message_id}/attachments`

## Request

- Base URL: `https://us1.platform.bird.com`
- URL: `https://us1.platform.bird.com/v1/email/threads/{thread_id}/messages/{message_id}/attachments`
- Auth: one of:
  - HTTP bearer
  - API key in cookie `bird_session`

Returns the attachments on a message in a conversation. Attachment bytes are downloadable for the mailbox's retention tier after the message occurred. Later requests return `410 Gone`, while the attachment metadata stays readable on the message's `attachment_manifest`.

## Headers

- `X-Workspace-Id` string
- `X-Organization-Id` string

## Response `200`

The message's attachments.

- EmailThreadMessageAttachmentList: The attachments on a conversation message.
  - `data` EmailThreadMessageAttachment[], required
    - `id` string, required: Attachment ID, used to download the attachment bytes.
    - `filename` string, nullable, required: Original filename, or null when the attachment had none.
    - `content_type` string, nullable, required: MIME content type, or null when it could not be determined.
    - `size` integer, required: Attachment size in bytes.

## Other responses

- `400`: Bad request
- `401`: Authentication required
- `403`: Insufficient permissions
- `404`: Resource not found
- `410`: The resource existed but is no longer available.
- `422`: The request has invalid field values, violates a business rule, or carries a query parameter the endpoint does not declare. Field validation errors use `type: validation_error` and include the affected fields in `details`. Business-rule errors identify the failed rule in `type`.
- `429`: Rate limit exceeded
- `500`: Internal server error

---

[API](https://skmtc.dev/messagebird/apis/bird-api.md) · [All operations](https://skmtc.dev/messagebird/apis/bird-api/llms.txt) · [OpenAPI document](https://skmtc.dev/messagebird/apis/bird-api/revisions/3e2a50466454?raw)