curl -X GET 'https://api.resend.com/inboxes/inbox-id' \
  -H "Authorization: Bearer $RESEND_API_KEY" \
  -H 'User-Agent: my-app/1.0'

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

> Retrieve a single inbox by ID or email address

## 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' \
  -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... |

## Response (200 OK)
{"object":"inbox","id":"b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1"}

---
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GET

GET /inboxes/{inbox_id} — Resend API

Resend API

Retrieve a single inbox by ID or email address

Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-10-20 · upstream hash matched

Actions Try in browser→

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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' \  -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 `[email protected]`. A value that contains `@` must be a valid email address, and any other value must be a UUID, or the request returns a 422. The address match is case-insensitive and never falls back to the inbox `name`. An address that matches no inbox returns a 404.

Response 200 OK

{
  "object": "inbox",
  "id": "b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1",
  "name": "Customer Support",
  "email_address": "[email protected]",
  "domain_id": "d91cd9bd-1176-453e-8fc1-35364d380206",
  "receiving_address": null,
  "from_name": "Ada from Support",
  "unread": 3,
  "drafts": 2,
  "last_received": "2026-08-05T14:03:11.229Z",
  "created_at": "2026-08-01T09:12:44.512Z",
  "updated_at": "2026-08-03T10:20:05.118Z"
}

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