> This page is for version v2026.01.16-dev.
> For other versions, use one of these documentation indexes:
> - latest (default): https://docs.machanirobotics.dev/latest/llms.txt
> - v2026.01.16-dev: https://docs.machanirobotics.dev/v-2026-01-16-dev/llms.txt

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.machanirobotics.dev/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.machanirobotics.dev/_mcp/server.

# List Characters

GET https://api.machanirobotics.com/v1/conversation/characters/{character}

List retrieves a list of Character resources.

 This RPC accepts a ListCharactersRequest, which may include a parent
 parameter to scope the query, as well as pagination parameters such as
 page_size and page_token. It returns a ListCharactersResponse containing the
 list of Character resources and a next_page_token if additional pages are
 available.

 HTTP Mapping: GET "/v1/conversation/characters"

Reference: https://docs.machanirobotics.dev/v-2026-01-16-dev/2026-01-16-dev/latest/character-service/listcharacters

## Request

### Path parameters

- `character` (string, required) — The character id.

### Query parameters

- `pageSize` (integer, optional) — page_size specifies the maximum number of Character resources to return.
- `pageToken` (string, optional) — page_token is used to retrieve the next page of results.

## Response

### 200

OK

- `characters` (list of Character, optional) — characters is the list of Character resources.
- `nextPageToken` (string, optional) — next_page_token is the token for retrieving the next page of results.

## Errors

### 400 Bad Request Error

Bad Request

- `code` (integer, optional) — The status code, which should be an enum value of [google.rpc.Code][google.rpc.Code].
- `message` (string, optional) — A developer-facing error message, which should be in English. Any user-facing error message should be localized and sent in the [google.rpc.Status.details][google.rpc.Status.details] field, or localized by the client.
- `details` (list of GoogleProtobufAny, optional) — A list of messages that carry the error details. There is a common set of message types for APIs to use.

## Types

### Character

Character represents the default prompt and response settings for a chat conversation. It defines the default audio, conversation, and speech configurations that are applied when initiating or managing conversations.

- `displayName` (string, required) — display_name is the human-readable name for the Character.
- `name` (string, optional) — name is the unique resource identifier for the Character. It follows the format "characters/\{character}".
- `description` (string, optional) — description provides a brief overview of the Character's purpose.
- `versions` (list of CharacterItem, optional) — version is the current version of the Character.

### GoogleProtobufAny

Contains an arbitrary serialized message along with a @type that describes the type of the serialized message.

- `@type` (string, optional) — The type of the serialized message.

### CharacterItem

CharacterItem represents a single version of a Character, with full settings.

- `defaultModel` (string, required) — default_model is the LLM model used in this version.
- `changeNote` (string, required) — change_note explains why this version was created.
- `id` (string, optional) — id is the unique version identifier for this snapshot (e.g., ULID).
- `version` (integer, optional) — version is the ordinal version number for this snapshot.
- `versionCreateTime` (datetime, optional) — timestamp marks when this snapshot was created.
- `personalityTraits` (list of string, optional) — personality_traits define personality keywords for this version.
- `interests` (list of string, optional) — interests list areas of interest in this version.
- `goals` (list of string, optional) — goals list the objectives or motivations for this version.
- `systemInstructions` (list of string, optional) — system_instructions are prompts always added to the system context.
- `scenarioContext` (list of string, optional) — scenario_context provides background context for this version.
- `location` (map from string to string, optional) — location holds situational or geographical metadata.
- `metadata` (map from string to string, optional) — metadata holds arbitrary key/value pairs for this version.
- `localeTime` (datetime, optional) — locale_time records the local time when this version was created.
- `weather` (string, optional) — weather is optional weather information for this version.
- `supportedLanguages` (list of string, optional) — supported_languages lists spoken/written languages supported.
- `styleSettings` (CharacterConversationStyle, optional) — style_settings configure tone and behavior for this version.
- `signature` (CharacterSignature, optional) — signature holds metadata about who created or modified this version.
- `favorite` (boolean, optional) — favorite marks if this version is bookmarked.

### CharacterConversationStyle

CharacterConversationStyle defines adjustable style attributes (0–100) that influence dialogue tone.

- `formality` (integer, required) — Formality sets the level of formality (0=casual, 100=very formal).
- `humor` (integer, required) — Humor sets the level of humor or playfulness.
- `empathy` (integer, required) — Empathy sets how empathetic the RobotCharacter responds.
- `professionalism` (integer, required) — Professionalism sets businesslike tone (useful for meetings/events).
- `enthusiasm` (integer, required) — Enthusiasm sets energetic or enthusiastic tone.
- `conciseness` (integer, required) — Conciseness sets how brief vs. verbose the responses are.

### CharacterSignature

CharacterOptions is the options for the profile.

- `username` (string, required) — The name of the profile.``
- `email` (string, required) — Email is the email of the creator.
- `company` (string, required) — Company is the company of the creator.

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "characters": [
    {
      "displayName": "Alpha Bot",
      "name": "characters/alpha123",
      "description": "An AI assistant designed for general knowledge and friendly conversation.",
      "versions": [
        {
          "defaultModel": "gpt-4-chat",
          "changeNote": "Improved response accuracy and added multilingual support.",
          "id": "01F8MECHZX3TBDSZ7XRADM79XE",
          "version": 3,
          "versionCreateTime": "2024-01-15T09:30:00Z",
          "personalityTraits": [
            "curious",
            "helpful",
            "patient"
          ],
          "interests": [
            "technology",
            "science",
            "literature"
          ],
          "goals": [
            "assist users with information",
            "engage in meaningful conversations"
          ],
          "systemInstructions": [
            "Always provide accurate information.",
            "Maintain a friendly tone."
          ],
          "scenarioContext": [
            "User is seeking advice on various topics.",
            "Conversation is casual and informative."
          ],
          "location": {
            "region": "us-west",
            "timezone": "PST"
          },
          "metadata": {
            "createdBy": "dev_team",
            "releaseStage": "production"
          },
          "localeTime": "2024-01-15T09:30:00Z",
          "weather": "clear skies",
          "supportedLanguages": [
            "en",
            "es",
            "fr"
          ],
          "styleSettings": {
            "formality": 60,
            "humor": 40,
            "empathy": 70,
            "professionalism": 50,
            "enthusiasm": 65,
            "conciseness": 55
          },
          "signature": {
            "username": "jdoe",
            "email": "jdoe@machanirobotics.com",
            "company": "Machani Robotics"
          },
          "favorite": true
        }
      ]
    }
  ],
  "nextPageToken": "eyJwYWdlIjoxfQ=="
}
```

**SDK Code**

```python
import requests

url = "https://api.machanirobotics.com/v1/conversation/characters/character"

payload = {}
headers = {"Content-Type": "application/json"}

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

print(response.json())
```

```javascript
const url = 'https://api.machanirobotics.com/v1/conversation/characters/character';
const options = {method: 'GET', headers: {'Content-Type': 'application/json'}, body: '{}'};

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.machanirobotics.com/v1/conversation/characters/character"

	payload := strings.NewReader("{}")

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

	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.machanirobotics.com/v1/conversation/characters/character")

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

request = Net::HTTP::Get.new(url)
request["Content-Type"] = 'application/json'
request.body = "{}"

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://api.machanirobotics.com/v1/conversation/characters/character")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.machanirobotics.com/v1/conversation/characters/character', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.machanirobotics.com/v1/conversation/characters/character");
var request = new RestRequest(Method.GET);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.machanirobotics.com/v1/conversation/characters/character")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "GET"
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()
```