# GET /inboxes/{inbox_id}/threads (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20

> Retrieve a list of inbox threads

## Critical Gotchas
* All requests must include a `User-Agent` header (e.g. `User-Agent: my-app/1.0`) or the API returns HTTP 403.

## cURL
curl -X GET 'https://api.resend.com/inboxes/inbox-id/threads?folders=example&labels=example&read=true&limit=10&after=example-after&before=example-before' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0'

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| inbox_id | path | string | Yes | The Inbox ID or the inbox email address, such as `support... |
| folders | query | string[] | No | Comma-separated folders to list, for example `inbox,sent`... |
| labels | query | string[] | No | Comma-separated label IDs. Returns threads with any of th... |
| read | query | boolean | No | `true` returns threads where every email is read. `false`... |
Other params: limit, after, before

## Response (200 OK)
{"object":"list","has_more":true}

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