> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> STT). Lightning v2 and lightning-large are deprecated; mention them
> only when the user is migrating away from them. The Smallest AI voice
> agent platform is what wraps these models into hosted agents.

# List published versions

GET https://api.smallest.ai/atoms/v1/agent/{id}/versions

**Deprecated on the v2 branch model.** Migrate to `GET /agent/{id}/branches/{branchId}/revisions`. When `ENABLE_BRANCH_MODEL` is on, this endpoint returns `409 versioning_v2_migration_required` with the `Deprecation: true` header. See the [migration guide](/voice-agents/deprecations/agent-versioning-migration).

|
List published versions for an agent with pagination and optional pin filter.
The `total` value currently represents the total number of published versions
for the agent, not necessarily the filtered count when `isPinned` is used.


Reference: https://docs.smallest.ai/voice-agents/api-reference/agent-versioning-versions/list-published-versions

## OpenAPI Specification

```yaml
openapi: 3.1.0
info:
  title: atoms
  version: 1.0.0
paths:
  /agent/{id}/versions:
    get:
      operationId: list-published-versions
      summary: List published versions
      description: >
        **Deprecated on the v2 branch model.** Migrate to `GET
        /agent/{id}/branches/{branchId}/revisions`. When `ENABLE_BRANCH_MODEL`
        is on, this endpoint returns `409 versioning_v2_migration_required` with
        the `Deprecation: true` header. See the [migration
        guide](/voice-agents/deprecations/agent-versioning-migration).


        |

        List published versions for an agent with pagination and optional pin
        filter.

        The `total` value currently represents the total number of published
        versions

        for the agent, not necessarily the filtered count when `isPinned` is
        used.
      tags:
        - agentVersioningVersions
      parameters:
        - name: id
          in: path
          description: The agent ID.
          required: true
          schema:
            type: string
        - name: limit
          in: query
          description: Number of versions to return (1-100, default 20)
          required: false
          schema:
            type: integer
            default: 20
        - name: skip
          in: query
          description: Number of versions to skip (default 0)
          required: false
          schema:
            type: integer
            default: 0
        - name: isPinned
          in: query
          description: Filter by pinned status
          required: false
          schema:
            type: boolean
        - name: Authorization
          in: header
          description: >-
            API key from the console ApiKey collection, sent as Bearer token.
            Also accepts session cookies for browser-based auth.
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: >-
                  #/components/schemas/Agent Versioning -
                  Versions_listPublishedVersions_Response_200
        '400':
          description: Invalid input
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestErrorResponse'
        '401':
          description: Unauthorized access
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UnauthorizedErrorResponse'
        '403':
          description: >-
            Forbidden. Returned for workflow_graph agents when the organization
            lacks conversational agents access.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiResponse'
        '404':
          description: Agent not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestErrorResponse'
        '409':
          description: >
            The v1 versioning endpoint is deprecated on the branch model and
            will not process this request. The response body carries
            `error_type: "versioning_v2_migration_required"` and the response
            includes the `Deprecation: true` header. See the [migration
            guide](/voice-agents/deprecations/agent-versioning-migration) for
            the v2 equivalent.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VersioningV2MigrationRequiredResponse'
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerErrorResponse'
servers:
  - url: https://api.smallest.ai/atoms/v1
    description: Production server
components:
  schemas:
    AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsStatus:
      type: string
      enum:
        - published
        - draft
        - archived
      description: Current status of the version record
      title: >-
        AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsStatus
    AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsBlocks:
      type: object
      properties:
        workflow_prompt:
          type: string
        workflow_tools:
          type: string
        workflow_graph:
          type: string
        llm:
          type: string
        voice:
          type: string
        language:
          type: string
        call_handling:
          type: string
        detection:
          type: string
        analytics:
          type: string
        timeouts:
          type: string
        audio:
          type: string
        privacy:
          type: string
        widget:
          type: string
      description: References to the 13 config section blocks
      title: >-
        AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsBlocks
    WorkflowType:
      type: string
      enum:
        - workflow_graph
        - single_prompt
      description: >-
        The type of workflow configuration. workflow_graph uses a node-based
        visual workflow, single_prompt uses a simple prompt-based configuration.
      title: WorkflowType
    AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItems:
      type: object
      properties:
        _id:
          type: string
          description: Unique identifier
        agent:
          type: string
          description: The agent this version belongs to
        status:
          $ref: >-
            #/components/schemas/AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsStatus
          description: Current status of the version record
        versionNumber:
          type:
            - integer
            - 'null'
          description: Auto-incremented version number (published versions only)
        label:
          type:
            - string
            - 'null'
          description: Human-readable label for the version
        description:
          type:
            - string
            - 'null'
          description: Description of what changed in this version
        isPinned:
          type: boolean
          default: false
          description: Whether the version is pinned for quick access
        publishedBy:
          type:
            - string
            - 'null'
          description: User ID of who published this version
        publishedAt:
          type:
            - string
            - 'null'
          format: date-time
          description: When this version was published
        activatedBy:
          type:
            - string
            - 'null'
          description: User ID of who activated this version
        activatedAt:
          type:
            - string
            - 'null'
          format: date-time
          description: When this version was activated
        draftId:
          type:
            - string
            - 'null'
          description: Unique draft identifier (drafts only)
        draftName:
          type:
            - string
            - 'null'
          description: Human-readable draft name
        draftRevision:
          type:
            - integer
            - 'null'
          description: Revision number within the draft (drafts only)
        sourceVersionId:
          type:
            - string
            - 'null'
          description: The published version this draft was branched from
        blocks:
          $ref: >-
            #/components/schemas/AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItemsBlocks
          description: References to the 13 config section blocks
        workflowType:
          $ref: '#/components/schemas/WorkflowType'
        parentVersion:
          type:
            - string
            - 'null'
          description: The version this was derived from
        isActive:
          type: boolean
          description: Whether this is the currently active version for the agent
        createdBy:
          type: string
          description: User ID of who created this record
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
        publishedByName:
          type:
            - string
            - 'null'
          description: Display name of the user who published
        activatedByName:
          type:
            - string
            - 'null'
          description: Display name of the user who activated the version
      description: >-
        Represents either a draft revision or a published version of an agent's
        configuration.
      title: AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItems
    AgentIdVersionsGetResponsesContentApplicationJsonSchemaData:
      type: object
      properties:
        versions:
          type: array
          items:
            $ref: >-
              #/components/schemas/AgentIdVersionsGetResponsesContentApplicationJsonSchemaDataVersionsItems
        total:
          type: integer
          description: >-
            Total published versions for the agent. When `isPinned` is used,
            this may not equal the filtered result count.
      title: AgentIdVersionsGetResponsesContentApplicationJsonSchemaData
    Agent Versioning - Versions_listPublishedVersions_Response_200:
      type: object
      properties:
        status:
          type: boolean
        data:
          $ref: >-
            #/components/schemas/AgentIdVersionsGetResponsesContentApplicationJsonSchemaData
      title: Agent Versioning - Versions_listPublishedVersions_Response_200
    BadRequestErrorResponse:
      type: object
      properties:
        status:
          type: boolean
        errors:
          type: array
          items:
            type: string
      title: BadRequestErrorResponse
    UnauthorizedErrorResponse:
      type: object
      properties:
        status:
          type: boolean
        errors:
          type: array
          items:
            type: string
      title: UnauthorizedErrorResponse
    ApiResponseData:
      type: object
      properties: {}
      title: ApiResponseData
    ApiResponse:
      type: object
      properties:
        status:
          type: boolean
        data:
          $ref: '#/components/schemas/ApiResponseData'
      title: ApiResponse
    VersioningV2MigrationRequiredResponseErrorType:
      type: string
      enum:
        - versioning_v2_migration_required
      title: VersioningV2MigrationRequiredResponseErrorType
    VersioningV2MigrationRequiredResponse:
      type: object
      properties:
        status:
          type: boolean
        error_type:
          $ref: '#/components/schemas/VersioningV2MigrationRequiredResponseErrorType'
        errors:
          type: array
          items:
            type: string
      description: >
        Returned by deprecated v1 versioning writes and list reads when
        `ENABLE_BRANCH_MODEL` is on. Response header carries `Deprecation:
        true`. The `error_type` value is a stable discriminator.
      title: VersioningV2MigrationRequiredResponse
    InternalServerErrorResponse:
      type: object
      properties:
        status:
          type: boolean
        errors:
          type: array
          items:
            type: string
      title: InternalServerErrorResponse
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        API key from the console ApiKey collection, sent as Bearer token. Also
        accepts session cookies for browser-based auth.

```

## Examples



**Request**

```json
{}
```

**Response**

```json
{
  "status": true,
  "data": {
    "versions": [
      {
        "_id": "63f1a2b4e4b0c123456789ab",
        "agent": "63f1a2b4e4b0c123456789ac",
        "status": "published",
        "versionNumber": 3,
        "label": "Release 3.0 - Improved NLP",
        "description": "Enhanced natural language processing and bug fixes in call handling.",
        "isPinned": true,
        "publishedBy": "5f8d0d55b54764421b7156c3",
        "publishedAt": "2024-01-15T09:30:00Z",
        "activatedBy": "5f8d0d55b54764421b7156c3",
        "activatedAt": "2024-01-15T09:45:00Z",
        "draftId": null,
        "draftName": null,
        "draftRevision": null,
        "sourceVersionId": "63f1a2b4e4b0c123456789aa",
        "blocks": {
          "workflow_prompt": "63f1a2b4e4b0c123456789ad",
          "workflow_tools": "63f1a2b4e4b0c123456789ae",
          "workflow_graph": "63f1a2b4e4b0c123456789af",
          "llm": "63f1a2b4e4b0c123456789b0",
          "voice": "63f1a2b4e4b0c123456789b1",
          "language": "63f1a2b4e4b0c123456789b2",
          "call_handling": "63f1a2b4e4b0c123456789b3",
          "detection": "63f1a2b4e4b0c123456789b4",
          "analytics": "63f1a2b4e4b0c123456789b5",
          "timeouts": "63f1a2b4e4b0c123456789b6",
          "audio": "63f1a2b4e4b0c123456789b7",
          "privacy": "63f1a2b4e4b0c123456789b8",
          "widget": "63f1a2b4e4b0c123456789b9"
        },
        "workflowType": "workflow_graph",
        "parentVersion": "63f1a2b4e4b0c123456789aa",
        "isActive": true,
        "createdBy": "5f8d0d55b54764421b7156c3",
        "createdAt": "2023-12-20T08:00:00Z",
        "updatedAt": "2024-01-15T09:00:00Z",
        "publishedByName": "Alice Johnson",
        "activatedByName": "Alice Johnson"
      }
    ],
    "total": 5
  }
}
```

**SDK Code**

```python
from smallestai import SmallestAI

client = SmallestAI(
    token="YOUR_TOKEN_HERE",
)

client.atoms.agent_versioning_versions.list_published_versions(
    id="id",
)

```

```javascript
const url = 'https://api.smallest.ai/atoms/v1/agent/id/versions';
const options = {
  method: 'GET',
  headers: {Authorization: 'Bearer <token>', '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.smallest.ai/atoms/v1/agent/id/versions"

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

	req, _ := http.NewRequest("GET", 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.smallest.ai/atoms/v1/agent/id/versions")

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

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
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.smallest.ai/atoms/v1/agent/id/versions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('GET', 'https://api.smallest.ai/atoms/v1/agent/id/versions', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.smallest.ai/atoms/v1/agent/id/versions");
var request = new RestRequest(Method.GET);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

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

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.smallest.ai/atoms/v1/agent/id/versions")! 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()
```