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Hilos

List threads in an inbox, retrieve a single thread, and fetch all messages belonging to a thread.

Descripción General

Threads group related messages in a conversation. AgentSend automatically assigns incoming and outgoing messages to threads based on email headers (In-Reply-To, References). Every thread belongs to exactly one inbox.

Use the Thread endpoints to read conversation history, display a thread view in your agent's UI, or determine which thread a new incoming message should be routed to.

ℹ

All API requests require an x-api-key header. Obtain your key from the AgentSend dashboard.

El Objeto Thread

Endpoints that return a thread will include the following fields.

Field Type Description
id string (uuid) Unique identifier for the thread.
inboxId string (uuid) ID of the inbox this thread belongs to.
subject string Subject line of the thread, taken from the first message.
messageCount integer Total number of messages in the thread.
lastMessageAt string (ISO 8601) Timestamp of the most recent message in the thread.
createdAt string (ISO 8601) Timestamp when the thread was created.
GET /inboxes/{id}/threads

List Threads

Returns a paginated list of threads for the specified inbox, ordered by lastMessageAt descending.

Path Parameters

ParameterTypeDescription
id requerido string (uuid) The ID of the inbox whose threads you want to list.

Query Parameters

ParameterTypeDefaultDescription
limit integer 20 Maximum number of threads to return. Max value is 100.
offset integer 0 Number of threads to skip before returning results.

Request

javascript 
const inboxId = "inbox_01hx4z2k9m3p7qr8st5uvwxy";

const res = await fetch(
  `https://api.agentsend.io/inboxes/${inboxId}/threads?limit=20&offset=0`,
  {
    headers: { "x-api-key": process.env.AGENTSEND_API_KEY },
  }
);

const data = await res.json();
console.log(data.data); // array of Thread objects

Response 200

json 
{
  "data": [
    {
      "id": "thr_01hx4z2k9m3p7qr8st5uvwxy",
      "inboxId": "inbox_01hx4z2k9m3p7qr8st5uvwxy",
      "subject": "Re: Your order has shipped",
      "messageCount": 4,
      "lastMessageAt": "2024-06-12T14:22:07Z",
      "createdAt": "2024-06-10T09:01:33Z"
    },
    {
      "id": "thr_02hy5a3l0n4q8rs9tu6vwxyz",
      "inboxId": "inbox_01hx4z2k9m3p7qr8st5uvwxy",
      "subject": "Hello from AgentSend",
      "messageCount": 1,
      "lastMessageAt": "2024-06-11T08:44:55Z",
      "createdAt": "2024-06-11T08:44:55Z"
    }
  ],
  "total": 2,
  "limit": 20,
  "offset": 0
}
GET /threads/{id}

Get Thread

Retrieves a single thread by its ID. Returns the full Thread object.

Path Parameters

ParameterTypeDescription
id requerido string (uuid) The ID of the thread to retrieve.

Request

javascript 
const threadId = "thr_01hx4z2k9m3p7qr8st5uvwxy";

const res = await fetch(
  `https://api.agentsend.io/threads/${threadId}`,
  {
    headers: { "x-api-key": process.env.AGENTSEND_API_KEY },
  }
);

const thread = await res.json();
console.log(thread.subject, thread.messageCount);

Response 200

json 
{
  "id": "thr_01hx4z2k9m3p7qr8st5uvwxy",
  "inboxId": "inbox_01hx4z2k9m3p7qr8st5uvwxy",
  "subject": "Re: Your order has shipped",
  "messageCount": 4,
  "lastMessageAt": "2024-06-12T14:22:07Z",
  "createdAt": "2024-06-10T09:01:33Z"
}
GET /threads/{id}/messages

Get Thread Messages

Returns a paginated list of messages belonging to the specified thread, ordered by createdAt ascending (oldest first).

Path Parameters

ParameterTypeDescription
id requerido string (uuid) The ID of the thread whose messages you want to retrieve.

Query Parameters

ParameterTypeDefaultDescription
limit integer 20 Maximum number of messages to return. Max value is 100.
offset integer 0 Number of messages to skip before returning results.

Request

javascript 
const threadId = "thr_01hx4z2k9m3p7qr8st5uvwxy";

const res = await fetch(
  `https://api.agentsend.io/threads/${threadId}/messages?limit=20&offset=0`,
  {
    headers: { "x-api-key": process.env.AGENTSEND_API_KEY },
  }
);

const data = await res.json();

for (const msg of data.data) {
  console.log(msg.fromAddress, msg.subject, msg.createdAt);
}

Response 200

json 
{
  "data": [
    {
      "id": "msg_01hx4z2k9m3p7qr8st5uvwxy",
      "threadId": "thr_01hx4z2k9m3p7qr8st5uvwxy",
      "inboxId": "inbox_01hx4z2k9m3p7qr8st5uvwxy",
      "direction": "outbound",
      "fromAddress": "agent@agentsend.io",
      "toAddresses": ["customer@example.com"],
      "subject": "Your order has shipped",
      "bodyText": "Hi! Your order #1234 has shipped and will arrive by Friday.",
      "status": "delivered",
      "createdAt": "2024-06-10T09:01:33Z"
    },
    {
      "id": "msg_02hy5a3l0n4q8rs9tu6vwxyz",
      "threadId": "thr_01hx4z2k9m3p7qr8st5uvwxy",
      "inboxId": "inbox_01hx4z2k9m3p7qr8st5uvwxy",
      "direction": "inbound",
      "fromAddress": "customer@example.com",
      "toAddresses": ["agent@agentsend.io"],
      "subject": "Re: Your order has shipped",
      "bodyText": "Thanks! Can you share the tracking number?",
      "status": "received",
      "createdAt": "2024-06-10T11:17:45Z"
    }
  ],
  "total": 4,
  "limit": 20,
  "offset": 0
}
💡

The messages array contains full Message objects. See the Messages API reference for the complete field list.

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