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

# GET /domains/{domain_id} (Resend API)
Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03

> Retrieve a single domain

## Critical Gotchas
* All requests must include a `User-Agent` header (e.g. `User-Agent: my-app/1.0`) or the API returns HTTP 403.
* The `to` field is an array of strings, even when sending to a single recipient.

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

## Parameters
| Name | In | Type | Required | Description |
| :--- | :--- | :--- | :--- | :--- |
| domain_id | path | string | Yes | The ID of the domain. |

## Response (200 OK)
{"object":"domain","id":"d91cd9bd-1176-453e-8fc1-35364d380206"}

---
Need an API key? Get one at https://resend.com/signup

GET

/domains/{domain_id}

Resend API

Retrieve a single domain

Base URL: https://api.resend.com
Auth: Authorization: Bearer <RESEND_API_KEY>
Last verified: 2026-09-03 · upstream hash matched

Actions

Agents: curl -H "Accept: text/markdown" this URL
→ 162 tokens · Vary: Accept

Critical gotchas

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

The to field is an array of strings, even when sending to a single recipient.

cURL

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

Get a free Resend API key → sponsored

Parameters

Name	In	Type	Required	Description
domain_id	path	string	Yes	The ID of the domain.

Response 200 OK

{
  "object": "domain",
  "id": "d91cd9bd-1176-453e-8fc1-35364d380206",
  "name": "example.com",
  "status": "not_started",
  "created_at": "2023-04-26 20:21:26.347412+00",
  "region": "us-east-1",
  "open_tracking": true,
  "click_tracking": true,
  "tracking_subdomain": "string",
  "capabilities": {
    "sending": "enabled",
    "receiving": "enabled"
  },
  "records": [
    {
      "record": "SPF",
      "name": "string",
      "type": "MX",
      "ttl": "string",
      "status": "pending",
      "value": "string",
      "priority": 0
    }
  ]
}