> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.itential.com/itential-cloud/api-reference/agent-session-manager/get-messages/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.itential.com/_mcp/server.

# Get messages for a session

GET https://example.itential.io/agent-session-manager/sessions/{sessionId}/messages

Returns messages for a session.

Reference: https://docs.itential.com/itential-cloud/api-reference/agent-session-manager/get-messages

## Authentication

- `Authorization` header (basic auth, required) — Basic authentication of the form `Basic <base64(username:password)>`.

## Request

### Path parameters

- `sessionId` (string, required) — sessionId

### Query parameters

- `filters` (list of any, optional) — Filter criteria — each entry specifies a field, operator, and value
- `page` (double, optional) — Page number (1-based)
- `limit` (double, optional) — Number of items per page
- `sortBy` (enum, optional) — Field to sort by
  - Allowed values: `eventId`, `timestamp`
- `sortOrder` (enum, optional) — Sort order
  - Allowed values: `asc`, `desc`

## Response

### 200

result

- `list of object`
  - `sessionId` (string, required) — Session ID this message belongs to
  - `eventId` (string, required) — Unique identifier for the session message — use with GET /messages/:eventId to fetch full data
  - `timestamp` (double, required) — Event timestamp in epoch milliseconds
  - `type` (enum, required) — Event type — AEE event type or synthetic merged type (inference-pending, tool-execution)
    - Allowed values: `inference-pending`, `inference-succeeded`, `inference-failed`, `tool-execution`, `agent-session-paused`, `agent-session-resumed`, `agent-session-completed`, `agent-session-failed`, `agent-session-canceled`
  - `category` (enum, required) — Display category — AGENT_REASONING (inference), TOOL_CALLED (tools), AGENT_STATUS (lifecycle); never null
    - Allowed values: `AGENT_REASONING`, `TOOL_CALLED`, `AGENT_STATUS`
  - `data` (object, required) — Event-specific data. ToolExecutionDataDto for tool-execution items; \{ pauseDurationMs } for agent-session-resumed; \{ durationMs, tokenUsage } for inference-succeeded; \{ durationMs } for inference-failed; \{ errorMessage, errorCategory } for agent-session-failed; empty object () otherwise.
  - `sequenceNumber` (double, optional) — Sequence number; null for tool-execution items
  - `text` (string, optional) — Whatever the model emitted for inference events (text content or error message). Omitted entirely for other event types — clients format display text for those themselves.

## Errors

### 500 Internal Server Error

Error response from API

- `any`

## Examples

**Response**

```json
[
  {
    "sessionId": "string",
    "eventId": "string",
    "timestamp": 1.1,
    "type": "inference-pending",
    "category": "AGENT_REASONING",
    "data": {},
    "sequenceNumber": 1.1,
    "text": "string"
  }
]
```

**SDK Code**

```python
import requests

url = "https://example.itential.io/agent-session-manager/sessions/sessionId/messages"

response = requests.get(url)

print(response.json())
```

```javascript
const url = 'https://example.itential.io/agent-session-manager/sessions/sessionId/messages';
const options = {method: 'GET'};

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"
	"net/http"
	"io"
)

func main() {

	url := "https://example.itential.io/agent-session-manager/sessions/sessionId/messages"

	req, _ := http.NewRequest("GET", url, nil)

	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://example.itential.io/agent-session-manager/sessions/sessionId/messages")

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

request = Net::HTTP::Get.new(url)

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.get("https://example.itential.io/agent-session-manager/sessions/sessionId/messages")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://example.itential.io/agent-session-manager/sessions/sessionId/messages');

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

```csharp
using RestSharp;

var client = new RestClient("https://example.itential.io/agent-session-manager/sessions/sessionId/messages");
var request = new RestRequest(Method.GET);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let request = NSMutableURLRequest(url: NSURL(string: "https://example.itential.io/agent-session-manager/sessions/sessionId/messages")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"

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()
```