> 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.

# Add audience members

POST https://api.smallest.ai/atoms/v1/audience/{id}/members
Content-Type: application/json

Add new members to an existing audience.

Each member object must include a key matching the audience's `phoneNumberColumnName`.
If it's missing, the API returns 400: `"Each member must have a <phoneNumberColumnName> field"`.
Adding members that would exceed the audience limit also returns 400.

Note: if the audience belongs to a different organization, the API returns 404 (not 403).


Reference: https://docs.smallest.ai/voice-agents/api-reference/audience/add-audience-members

## OpenAPI Specification

```yaml
openapi: 3.1.0
info:
  title: atoms
  version: 1.0.0
paths:
  /audience/{id}/members:
    post:
      operationId: add-audience-members
      summary: Add audience members
      description: >
        Add new members to an existing audience.


        Each member object must include a key matching the audience's
        `phoneNumberColumnName`.

        If it's missing, the API returns 400: `"Each member must have a
        <phoneNumberColumnName> field"`.

        Adding members that would exceed the audience limit also returns 400.


        Note: if the audience belongs to a different organization, the API
        returns 404 (not 403).
      tags:
        - Audience
      parameters:
        - name: id
          in: path
          description: The unique identifier of the audience
          required: true
          schema:
            type: string
        - 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: Members added successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Audience_addAudienceMembers_Response_200'
        '400':
          description: Bad request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/AddAudienceMembersRequestBadRequestError'
        '401':
          description: Unauthorized access
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UnauthorizedErrorResponse'
        '404':
          description: >-
            Audience not found (also returned when audience belongs to a
            different organization)
          content:
            application/json:
              schema:
                description: Any type
        '500':
          description: Internal server error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerErrorResponse'
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                members:
                  type: array
                  items:
                    $ref: >-
                      #/components/schemas/AudienceIdMembersPostRequestBodyContentApplicationJsonSchemaMembersItems
                  description: >-
                    Array of member objects with dynamic structure based on
                    audience configuration
              required:
                - members
servers:
  - url: https://api.smallest.ai/atoms/v1
    description: Production server
components:
  schemas:
    AudienceIdMembersPostRequestBodyContentApplicationJsonSchemaMembersItems:
      type: object
      properties: {}
      description: >-
        Member data with keys matching the audience's CSV structure. Must
        include the phone number column.
      title: AudienceIdMembersPostRequestBodyContentApplicationJsonSchemaMembersItems
    AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItemsData:
      type: object
      properties:
        added:
          type: integer
          description: Number of members successfully added
        skipped:
          type: integer
          description: Number of members skipped (e.g., duplicates)
      title: AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItemsData
    AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItems:
      type: object
      properties:
        message:
          type: string
        data:
          $ref: >-
            #/components/schemas/AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItemsData
      title: AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItems
    Audience_addAudienceMembers_Response_200:
      type: object
      properties:
        status:
          type: boolean
        data:
          type: array
          items:
            $ref: >-
              #/components/schemas/AudienceIdMembersPostResponsesContentApplicationJsonSchemaDataItems
      title: Audience_addAudienceMembers_Response_200
    AddAudienceMembersRequestBadRequestError:
      type: object
      properties:
        status:
          type: boolean
        errors:
          type: array
          items:
            type: string
      title: AddAudienceMembersRequestBadRequestError
    UnauthorizedErrorResponse:
      type: object
      properties:
        status:
          type: boolean
        errors:
          type: array
          items:
            type: string
      title: UnauthorizedErrorResponse
    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
{
  "members": [
    {}
  ]
}
```

**Response**

```json
{
  "status": true,
  "data": [
    {
      "message": "5 members added successfully",
      "data": {
        "added": 5,
        "skipped": 2
      }
    }
  ]
}
```

**SDK Code**

```typescript
import { SmallestAIClient } from "smallestai";

async function main() {
    const client = new SmallestAIClient({
        token: "YOUR_TOKEN_HERE",
    });
    await client.atoms.audience.addAudienceMembers("60d0fe4f5311236168a109ca", {
        members: [
            {},
        ],
    });
}
main();

```

```python
from smallestai import SmallestAI

client = SmallestAI(
    token="YOUR_TOKEN_HERE",
)

client.atoms.audience.add_audience_members(
    id="60d0fe4f5311236168a109ca",
    members=[
        {}
    ],
)

```

```go
package main

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

func main() {

	url := "https://api.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members"

	payload := strings.NewReader("{\n  \"members\": [\n    {}\n  ]\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.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members")

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  \"members\": [\n    {}\n  ]\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.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"members\": [\n    {}\n  ]\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members', [
  'body' => '{
  "members": [
    {}
  ]
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"members\": [\n    {}\n  ]\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

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

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.smallest.ai/atoms/v1/audience/60d0fe4f5311236168a109ca/members")! 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()
```