> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.caresquareapi.com/api-reference/contacts/participants/create-participant/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.caresquareapi.com/_mcp/server.

# Create participant

POST https://api.caresquareapi.com/api/public/v1/participants
Content-Type: application/json

Create a new participant. Plan manager scope from X-Plan-Manager-Id header.

Reference: https://docs.caresquareapi.com/api-reference/contacts/participants/create-participant

## Authentication

- `Authorization` header (bearer token, required) — API key issued for your account. Send as Bearer token in the Authorization header.
- `X-Plan-Manager-Id` header (required) — Plan manager UUID. Required on all public API requests to scope data access.

## Request

### Body (application/json)

This endpoint expects a ParticipantCreate.

- `first_name` (string, optional)
- `middle_name` (string, optional)
- `last_name` (string, optional)
- `participant_number` (string, optional) — NDIS participant number (numeric)
- `email` (string, optional) — Contact email (maps to contact_email)
- `state` (enum, optional)
  - Allowed values: `nsw`, `qld`, `vic`, `sa`, `wa`, `tas`, `act`, `nt`
- `status` (enum, optional) — Participant status
  - Allowed values: `Active`, `Inactive`, `Lead`
- `service_region_id` (enum, optional)
  - Allowed values: `remote`, `very_remote`
- `postcode` (string, optional) — 4-digit postcode (e.g. '2000')
- `approval_required` (boolean, optional)
- `date_of_birth` (date, optional)
- `phone_number` (string, optional)
- `gender` (string, optional)
- `title` (string, optional)
- `preferred_name` (string, optional)
- `approval_timeout` (integer, optional) — Approval timeout (smallint)
- `address_line_1` (string, optional)
- `address_line_2` (string, optional)
- `city` (string, optional)
- `bsb` (string, optional) — BSB in XXX-XXX format
- `bank_account_number` (string, optional) — 6-10 digit account number
- `bank_account_name` (string, optional)
- `date_ceased` (date, optional)
- `reason_for_leaving` (string, optional)
- `exit_reason_category_id` (string, optional) — Exit reason category ID
- `exit_reason_subcategory_id` (string, optional) — Exit reason subcategory ID (must belong to exit_reason_category_id)
- `aboriginal_torres_strait` (boolean, optional) — Aboriginal/Torres Strait Islander (maps to DB column aboroginal_torres_strait)
- `pronouns` (enum, optional)
  - Allowed values: `they_them`, `he_him`, `she_her`, `she/they`
- `participant_approved` (boolean, optional)
- `cald` (boolean, optional) — Culturally and linguistically diverse
- `interpreter_required` (boolean, optional)
- `onboard_date` (date, optional)
- `postal_statement` (boolean, optional)
- `participant_receives_statements` (boolean, optional) — Whether the participant is emailed statements

## Response

### 201

Participant created

- `id` (string, optional) — Unique identifier for the participant
- `first_name` (string, optional)
- `middle_name` (string, optional)
- `last_name` (string, optional)
- `participant_number` (string, optional) — NDIS participant number
- `email` (string, optional) — Contact email
- `state` (string, optional)
- `status` (string, optional)
- `service_region_id` (string, optional)
- `postcode` (string, optional)
- `approval_required` (boolean, optional)
- `date_of_birth` (date, optional)
- `phone_number` (string, optional)
- `gender` (string, optional)
- `title` (string, optional)
- `preferred_name` (string, optional)
- `approval_timeout` (integer, optional)
- `address_line_1` (string, optional)
- `address_line_2` (string, optional)
- `city` (string, optional)
- `bsb` (string, optional)
- `bank_account_number` (string, optional)
- `bank_account_name` (string, optional)
- `date_ceased` (date, optional)
- `reason_for_leaving` (string, optional)
- `aboriginal_torres_strait` (boolean, optional)
- `pronouns` (string, optional)
- `participant_approved` (boolean, optional)
- `cald` (boolean, optional)
- `interpreter_required` (boolean, optional)
- `onboard_date` (date, optional)
- `postal_statement` (boolean, optional)
- `participant_receives_statements` (boolean, optional) — Whether the participant is emailed statements
- `exit_reason_category` (ExitReasonRef, optional) — Reference to an exit reason category/subcategory (present only when set).
- `exit_reason_subcategory` (ExitReasonRef, optional) — Reference to an exit reason category/subcategory (present only when set).
- `status_changes` (map from string to any, optional) — History of status changes (read-only)

## Errors

### 400 Bad Request Error

Invalid request parameters

- `success` (boolean, optional)
- `error` (string, optional) — Error type or code
- `detail` (string, optional) — Human-readable error message

### 403 Forbidden Error

Access denied for plan manager

- `success` (boolean, optional)
- `error` (string, optional) — Error type or code
- `detail` (string, optional) — Human-readable error message

### 500 Internal Server Error

Internal server error

- `success` (boolean, optional)
- `error` (string, optional) — Error type or code
- `detail` (string, optional) — Human-readable error message

## Types

### ExitReasonRef

Reference to an exit reason category/subcategory (present only when set).

- `id` (string, optional)
- `name` (string, optional) — Friendly name

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "id": "string",
  "first_name": "string",
  "middle_name": "string",
  "last_name": "string",
  "participant_number": "string",
  "email": "string",
  "state": "string",
  "status": "string",
  "service_region_id": "string",
  "postcode": "string",
  "approval_required": true,
  "date_of_birth": "2023-01-15",
  "phone_number": "string",
  "gender": "string",
  "title": "string",
  "preferred_name": "string",
  "approval_timeout": 1,
  "address_line_1": "string",
  "address_line_2": "string",
  "city": "string",
  "bsb": "string",
  "bank_account_number": "string",
  "bank_account_name": "string",
  "date_ceased": "2023-01-15",
  "reason_for_leaving": "string",
  "aboriginal_torres_strait": true,
  "pronouns": "string",
  "participant_approved": true,
  "cald": true,
  "interpreter_required": true,
  "onboard_date": "2023-01-15",
  "postal_statement": true,
  "participant_receives_statements": true,
  "exit_reason_category": {
    "id": "string",
    "name": "string"
  },
  "exit_reason_subcategory": {
    "id": "string",
    "name": "string"
  },
  "status_changes": {}
}
```

**SDK Code**

```python
import requests

url = "https://api.caresquareapi.com/api/public/v1/participants"

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

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

print(response.json())
```

```javascript
const url = 'https://api.caresquareapi.com/api/public/v1/participants';
const options = {
  method: 'POST',
  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.caresquareapi.com/api/public/v1/participants"

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

	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.caresquareapi.com/api/public/v1/participants")

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 = "{}"

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.caresquareapi.com/api/public/v1/participants")
  .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('POST', 'https://api.caresquareapi.com/api/public/v1/participants', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.caresquareapi.com/api/public/v1/participants");
var request = new RestRequest(Method.POST);
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.caresquareapi.com/api/public/v1/participants")! 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()
```