> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developers.awork.com/apiv1/agent-threads/post-agents-threads/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developers.awork.com/_mcp/server.

# Creates a conversation with the awork Agent or a custom agent.

POST https://api.awork.com/api/v1/agents/threads
Content-Type: application/json

Creates a conversation with the awork Agent or a custom agent and optionally submits the first message.
Supply content or attachments to submit the first message and start processing.
awork Agent threads can be created without a message. Custom Agent threads require text or an attachment.
The response contains the thread and accepted first-message identifiers, not the agent's reply.
See [GET /agents/threads/\{threadId}/messages](https://developers.awork.com/apiv1/agent-threads/get-agents-threads-messages-by-thread-id) to retrieve replies.
Each request creates a new thread. Retrying after a lost response can create another thread.Any authenticated user.

Reference: https://developers.awork.com/apiv1/agent-threads/post-agents-threads

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Body (application/json)

This endpoint expects an AiThreadCreateRequestModel.

- `type` (enum, required) — Select personal-agent for the awork Agent, or custom-agent for a configured workspace agent.
  - Allowed values: `personal-agent`, `custom-agent`
- `content` (string, optional, nullable) — The message text. Required when no attachments are supplied.
- `attachments` (list of AgentThreadAttachmentRequestModel, optional, nullable) — Up to 20 distinct files attached to this message. Each file can contain up to 20 MiB. Upload new files before submitting their identifiers.
- `modelProvider` (string, optional, nullable) — The provider for a model override. Supply it together with modelName.
- `modelName` (string, optional, nullable) — The model to use for this message. It must be available in the workspace.
- `reasoningLevel` (string, optional, nullable) — The reasoning level for this message. Supported values depend on the selected model.
- `toolAccess` (AgentToolAccessOptionsModel, optional) — Per-message agent tool access options.
- `connectorIds` (list of string, optional, nullable) — The connector selection for this message.
- `connectorConnections` (list of AgentMessageConnectorConnectionRequestModel, optional, nullable) — Connection choices for custom-agent connectors. These do not change agent settings.
- `skillIds` (list of string, optional, nullable) — The skill selection for this message.
- `agentId` (string, optional) — The configured agent to run. Required for custom-agent threads; omit for ordinary personal-agent threads.
- `title` (string, optional, nullable) — The thread title.
- `projectId` (string, optional, nullable) — The project context id.
- `taskId` (string, optional, nullable) — The task context id.
- `clientId` (string, optional, nullable) — The client context id.
- `documentId` (string, optional, nullable) — The document context id.

## Response

### 200

OK

- `id` (string, optional) — The thread id.
- `threadRunId` (string, optional, nullable) — The current run id.
- `acceptedMessageId` (string, optional, nullable) — The accepted first-message id, or null when the thread was created without a message.
- `type` (string, optional, nullable) — The thread type.
- `title` (string, optional, nullable) — The thread title.
- `status` (enum, optional) — The creation result: ready without a first message, accepted with a first message, queued when the first message waits for a run, or failed to start.
  - Allowed values: `ready`, `accepted`, `queued`, `failed`
- `createdOn` (string, optional, nullable) — The creation timestamp.
- `createdBy` (string, optional) — The id of the user who created the thread.
- `updatedOn` (string, optional, nullable) — The last update timestamp.
- `updatedBy` (string, optional) — The id of the user who last updated the thread.
- `agentId` (string, optional, nullable) — The custom agent assigned to the thread.
- `projectId` (string, optional, nullable) — The associated project id.
- `taskId` (string, optional, nullable) — The associated task id.
- `clientId` (string, optional, nullable) — The associated client id.
- `documentId` (string, optional, nullable) — The associated document id.

## Errors

### 400 Bad Request Error

Bad Request

- `code` (string, required) — The error code.
- `description` (string, required) — The description of the error.
- `link` (string, required) — The link to the API documentation page.
- `details` (list of string, optional, nullable) — A list of details describing the error.
- `validationErrors` (list of ValidationErrorResponse, optional, nullable) — If a validation error occurred, this contains the validation errors for each property.
- `traceId` (string, optional, nullable) — The request trace id for tracking the request.

### 401 Unauthorized Error

Unauthorized

- `code` (string, required) — The error code.
- `description` (string, required) — The description of the error.
- `link` (string, required) — The link to the API documentation page.
- `details` (list of string, optional, nullable) — A list of details describing the error.
- `validationErrors` (list of ValidationErrorResponse, optional, nullable) — If a validation error occurred, this contains the validation errors for each property.
- `traceId` (string, optional, nullable) — The request trace id for tracking the request.

### 404 Not Found Error

Not Found

- `code` (string, required) — The error code.
- `description` (string, required) — The description of the error.
- `link` (string, required) — The link to the API documentation page.
- `details` (list of string, optional, nullable) — A list of details describing the error.
- `validationErrors` (list of ValidationErrorResponse, optional, nullable) — If a validation error occurred, this contains the validation errors for each property.
- `traceId` (string, optional, nullable) — The request trace id for tracking the request.

### 503 Service Unavailable Error

Service Unavailable

- `code` (string, required) — The error code.
- `description` (string, required) — The description of the error.
- `link` (string, required) — The link to the API documentation page.
- `details` (list of string, optional, nullable) — A list of details describing the error.
- `validationErrors` (list of ValidationErrorResponse, optional, nullable) — If a validation error occurred, this contains the validation errors for each property.
- `traceId` (string, optional, nullable) — The request trace id for tracking the request.

## Types

### AgentThreadAttachmentRequestModel

References an attached file. Supply exactly one of temporaryFileId or aworkFileId.

- `temporaryFileId` (string, optional, nullable) — The identifier returned when uploading a temporary file. Do not also supply aworkFileId.
- `aworkFileId` (string, optional, nullable) — The identifier of an existing awork file the caller can read. Do not also supply temporaryFileId.

### AgentToolAccessOptionsModel

Per-message agent tool access options.

- `awork` (boolean, optional) — Whether awork tools are enabled for this run.
- `webSearch` (boolean, optional) — Whether web search is enabled for this run.
- `googleGenAi` (boolean, optional) — Whether Google GenAI tools are enabled for this run.
- `openAiImageGeneration` (boolean, optional) — Whether OpenAI image generation is enabled for this run.

### AgentMessageConnectorConnectionRequestModel

Selects a connection for a Custom agent connector.

- `connectorId` (string, optional) — The connector identifier.
- `connectionId` (string, optional) — The connection identifier.

### ValidationErrorResponse

The validation error response.

- `property` (string, optional, nullable) — The name of the property that failed validation.
- `message` (string, optional, nullable) — The reason why this property failed validation.

## Examples

**Request**

```json
{
  "type": "custom-agent"
}
```

**Response**

```json
{
  "id": "6cbb219e-839d-4d23-b273-3a78bbd842ae",
  "threadRunId": "8f934a03-8f8b-44ea-9137-3ca563bb75e8",
  "acceptedMessageId": "66fcbdc5-2ae6-43bd-b3ab-f18ccd24909a",
  "type": "custom-agent",
  "title": "Weekly client status report",
  "status": "accepted",
  "createdOn": "2026-08-29T08:00:00Z",
  "createdBy": "9ad63972-4396-4b0b-9e7d-40b852cdebf8",
  "updatedOn": "2026-08-29T08:05:00Z",
  "updatedBy": "9ad63972-4396-4b0b-9e7d-40b852cdebf8",
  "agentId": "4d22e163-2b4a-4d47-b51c-5b2217f84f57",
  "projectId": "c907b29e-f640-4639-910d-722623fd5b4a",
  "taskId": "d88ef8fa-e549-4ca6-96d8-83f5be9d37a2",
  "clientId": "61341e18-3e3f-4efb-b471-b781e64f69f7",
  "documentId": "5a442338-8da3-49e9-a702-b45d6f829d43"
}
```

**SDK Code**

```python
import requests

url = "https://api.awork.com/api/v1/agents/threads"

payload = { "type": "custom-agent" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.awork.com/api/v1/agents/threads';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"type":"custom-agent"}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.awork.com/api/v1/agents/threads"

	payload := strings.NewReader("{\n  \"type\": \"custom-agent\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.awork.com/api/v1/agents/threads")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"type\": \"custom-agent\"\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.awork.com/api/v1/agents/threads")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"type\": \"custom-agent\"\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.awork.com/api/v1/agents/threads', [
  'body' => '{
  "type": "custom-agent"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.awork.com/api/v1/agents/threads");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"type\": \"custom-agent\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["type": "custom-agent"] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.awork.com/api/v1/agents/threads")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```