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Retrieve Thread

GET

/

inboxes

/

:inbox_id

/

threads

/

:thread_id

Node.js
import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.get({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
});
cURL
curl -X GET 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx'
CLI
resend inboxes threads get \
  --inbox_id b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 \
  --thread_id 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12
Response
{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "subject": "Refund for order 1041",
  "folder": "inbox",
  "labels": [
    {
      "id": "7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34",
      "name": "Urgent",
      "color": "crimson"
    }
  ],
  "read": false,
  "messages": [
    {
      "id": "5b1a9f47-2c8d-4e6f-9a03-1d2e3f4a5b60",
      "direction": "inbound",
      "from": "Ada Lovelace <ada@example.org>",
      "to": ["support@example.com"],
      "cc": [],
      "bcc": [],
      "reply_to": ["replies@example.org"],
      "subject": "Refund for order 1041",
      "message_id": "<1041@example.org>",
      "html": "<p>Could I get a refund for order 1041?</p>",
      "text": "Could I get a refund for order 1041?",
      "attachments": [
        {
          "id": "9d4f2b81-6c3a-4e7d-8b12-0a5c6d7e8f90",
          "filename": "receipt.pdf",
          "size": 20841
        }
      ],
      "read": false,
      "received_at": "2026-08-05T14:03:11.229Z"
    }
  ]
}

string

Always inbox_thread.

string

The ID of the thread.

string | null

The subject of the thread.

string

The folder the thread lives in. One of inbox, archive, spam, sent, or trash.

array

The labels attached to the thread, each with an id, name, and color.

boolean

True only when every message in the thread is read.

array

The thread’s messages, oldest first. The full history is returned in one response.

Hide properties

string

The ID of the message.

string

Whether the message was received by the inbox or sent from it.

string

Sender email address.

string[]

The recipients of the message.

string[]

The CC recipients of the message.

string[]

The BCC recipients of the message.

string[]

The Reply-To addresses.

string | null

The subject of the message.

string | null

The Message-ID header of the message.

string | null

The HTML body.

string | null

The plain-text body.

array

The attachments on the message.

Hide properties

string

The ID of the attachment.

string | null

The filename of the attachment.

number | null

The size of the attachment in bytes.

boolean

Whether the message has been read.

string

ISO 8601 timestamp when the message arrived or was sent.

Node.js
import { Resend } from 'resend';

const resend = new Resend('re_xxxxxxxxx');

const { data, error } = await resend.inboxes.threads.get({
  inboxId: 'b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1',
  threadId: '4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12',
});
cURL
curl -X GET 'https://api.resend.com/inboxes/b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1/threads/4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12' \
     -H 'Authorization: Bearer re_xxxxxxxxx'
CLI
resend inboxes threads get \
  --inbox_id b3e2b2b6-3f0e-4c8e-9ad3-2f43a1e2c7f1 \
  --thread_id 4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12
JSON
{
  "object": "inbox_thread",
  "id": "4d8e2a1c-9b3f-4c6d-8a21-3e5f7c9c0d12",
  "subject": "Refund for order 1041",
  "folder": "inbox",
  "labels": [
    {
      "id": "7f9c1d2e-4a6b-4c3d-8e15-9b0a7c6d5e34",
      "name": "Urgent",
      "color": "crimson"
    }
  ],
  "read": false,
  "messages": [
    {
      "id": "5b1a9f47-2c8d-4e6f-9a03-1d2e3f4a5b60",
      "direction": "inbound",
      "from": "Ada Lovelace <ada@example.org>",
      "to": ["support@example.com"],
      "cc": [],
      "bcc": [],
      "reply_to": ["replies@example.org"],
      "subject": "Refund for order 1041",
      "message_id": "<1041@example.org>",
      "html": "<p>Could I get a refund for order 1041?</p>",
      "text": "Could I get a refund for order 1041?",
      "attachments": [
        {
          "id": "9d4f2b81-6c3a-4e7d-8b12-0a5c6d7e8f90",
          "filename": "receipt.pdf",
          "size": 20841
        }
      ],
      "read": false,
      "received_at": "2026-08-05T14:03:11.229Z"
    }
  ]
}

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