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

# Onboarding

POST https://api.prod.paradex.trade/v1/onboarding
Content-Type: application/json

Onboarding verifies that the caller owns the StarkNet address and enters them
into the database. This call is idempotent.


Reference: https://docs.paradex.trade/api/prod/authentication/onboarding

## Request

### Headers

- `PARADEX-ETHEREUM-ACCOUNT` (string, required) — Ethereum account used to onboard
- `PARADEX-STARKNET-ACCOUNT` (string, required) — Starknet address
- `PARADEX-STARKNET-SIGNATURE` (string, required) — Starknet signature

### Body (application/json)

This endpoint expects a requests.Onboarding.

- `marketing_code` (string, optional) — Marketing code of the campaign the user is being onboarded via.
- `portfolio_margin` (boolean, optional) — When true, the new account is onboarded directly into Portfolio Margin mode. Only valid for main accounts and subaccounts.
- `public_key` (string, optional) — Public key of the user being onboarded.
- `referral_code` (string, optional) — Referral code of the user who referred the user being onboarded.
- `utm` (requests.Utm, optional) — UTM tracking parameters (optional).

## Response

### 200

An empty response

## Errors

### 400 Bad Request Error

Bad Request

- `data` (ResponsesApiErrorData, optional) — any additional data related to the error
- `error` (enum, optional) — unique immutable string identifier for specific error
  - Allowed values: `VALIDATION_ERROR`, `BINDING_ERROR`, `INTERNAL_ERROR`, `NOT_FOUND`, `SERVICE_UNAVAILABLE`, `INVALID_REQUEST_PARAMETER`, `ORDER_ID_NOT_FOUND`, `ORDER_IS_CLOSED`, `ORDER_IS_NOT_OPEN`, `INVALID_ORDER_SIZE`, `CLIENT_ORDER_ID_NOT_FOUND`, `DUPLICATED_CLIENT_ID`, `INVALID_SYMBOL`, `INVALID_TOKEN`, `INVALID_ETHEREUM_ADDRESS`, `INVALID_ETHEREUM_SIGNATURE`, `INVALID_STARKNET_ADDRESS`, `INVALID_STARKNET_SIGNATURE`, `STARKNET_SIGNATURE_VERIFICATION_FAILED`, `ETHEREUM_SIGNER_MISMATCH`, `ETHEREUM_HASH_MISMATCH`, `NOT_ONBOARDED`, `INVALID_TIMESTAMP`, `INVALID_BLOCK_EXPIRATION`, `ACCOUNT_NOT_FOUND`, `MEDIA_NOT_FOUND`, `INVALID_ORDER_SIGNATURE`, `PUBLIC_KEY_INVALID`, `UNAUTHORIZED_ETHEREUM_ADDRESS`, `UNAUTHORIZED_ERROR`, `ETHEREUM_ADDRESS_ALREADY_ONBOARDED`, `EVM_ADDRESS_ALREADY_ONBOARDED`, `MARKET_NOT_FOUND`, `ALLOWLIST_ENTRY_NOT_FOUND`, `USERNAME_IN_USE`, `GEO_IP_BLOCK`, `ETHEREUM_ADDRESS_BLOCKED`, `PROGRAM_NOT_FOUND`, `PROGRAM_NOT_SUPPORTED`, `INVALID_DASHBOARD`, `MARKET_NOT_OPEN`, `MARKET_NOT_SETTLED`, `INVALID_REFERRAL_CODE`, `REQUEST_NOT_ALLOWED`, `PARENT_ADDRESS_ALREADY_ONBOARDED`, `INVALID_PARENT_ACCOUNT`, `INVALID_VAULT_OPERATOR_CHAIN`, `VAULT_OPERATOR_ALREADY_ONBOARDED`, `VAULT_NAME_IN_USE`, `VAULT_NOT_FOUND`, `VAULT_STRATEGY_NOT_FOUND`, `VAULT_LIMIT_REACHED`, `VAULT_DATA_PRIVATE`, `BATCH_SIZE_OUT_OF_RANGE`, `ISOLATED_MARKET_ACCOUNT_MISMATCH`, `NO_ACCESS_TO_MARKET`, `POINTS_SUMMARY_NOT_FOUND`, `ALGO_ID_NOT_FOUND`, `INVALID_DERIVATION_PATH`, `PROFILE_STATS_NOT_FOUND`, `INVALID_CHAIN`, `INVALID_LAYERSWAP_SWAP`, `SOCIAL_USERNAME_IN_USE`, `INVALID_OAUTH_REQUEST`, `RPI_ACCOUNT_NOT_WHITELISTED`, `SYSTEM_STATUS_POST_ONLY`, `SYSTEM_STATUS_CANCEL_ONLY`, `INVALID_MARKETING_CODE`, `OFFER_NOT_FOUND`, `MARKET_MARGIN_RESTRICTED`, `NOT_UNIQUE`, `ACCOUNT_ALREADY_REFERRED`, `ONBOARDING_PERIOD_EXPIRED`, `ONBOARDING_RATE_LIMITED`, `SUBACCOUNTS_LIMIT_EXCEEDED`, `INSUFFICIENT_MIN_CHAIN_BALANCE`, `INSUFFICIENT_EVM_BALANCE`, `PORTFOLIO_MARGIN_ONBOARDING_DISABLED`, `PORTFOLIO_MARGIN_INVALID_ACCOUNT_KIND`, `EVM_VAULT_OPERATORS_DISABLED`, `INVALID_EVM_SIGNATURE`, `EVM_SIGNATURE_VERIFICATION_FAILED`, `INVALID_SUBKEY`, `SUBKEY_NOT_ACTIVATABLE`, `TOKEN_LIMIT_REACHED`, `INVALID_TOKEN_SCOPE`, `IP_NOT_ALLOWED`, `INSUFFICIENT_TRANSFERRABLE_XP`, `TRANSFER_LIMIT_REACHED`, `XP_TRANSFERS_DISABLED`, `BLOCK_TRADE_NOT_FOUND`, `BLOCK_TRADE_NOT_ENABLED`, `BLOCK_TRADE_EXPIRED`, `BLOCK_TRADE_ALREADY_CANCELLED`, `BLOCK_TRADE_INVALID_STATUS`, `BLOCK_TRADE_UNAUTHORIZED`, `BLOCK_TRADE_MISSING_TRADES`, `BLOCK_TRADE_MISSING_SIGNERS`, `BLOCK_TRADE_MISSING_SIGNATURE`, `BLOCK_TRADE_ACCOUNT_MISMATCH`, `BLOCK_TRADE_INVALID_SIGNATURE`, `BLOCK_TRADE_SIGNER_KEY_UNAUTHORIZED`, `BLOCK_TRADE_REPLAYED_SIGNATURE`, `BLOCK_TRADE_SELF_TRADE`, `OFFER_ALREADY_CANCELLED`, `OFFER_INVALID_STATUS`, `OFFER_UNAUTHORIZED`, `OFFER_PARENT_MISMATCH`, `OFFER_PARENT_NOT_ACCEPTING`, `PORTFOLIO_MARGIN_CONFIG_NOT_FOUND`, `MARGIN_CONFIG_NOT_FOUND`, `MMP_CONFIG_INVALID`, `MMP_NOT_ENABLED`, `MMP_MIN_FREEZE_NOT_ELAPSED`, `MMP_NOT_CONFIGURED`
- `message` (string, optional) — detailed description of error and how to address it

### 401 Unauthorized Error

Unauthorized

- `data` (ResponsesApiErrorData, optional) — any additional data related to the error
- `error` (enum, optional) — unique immutable string identifier for specific error
  - Allowed values: `VALIDATION_ERROR`, `BINDING_ERROR`, `INTERNAL_ERROR`, `NOT_FOUND`, `SERVICE_UNAVAILABLE`, `INVALID_REQUEST_PARAMETER`, `ORDER_ID_NOT_FOUND`, `ORDER_IS_CLOSED`, `ORDER_IS_NOT_OPEN`, `INVALID_ORDER_SIZE`, `CLIENT_ORDER_ID_NOT_FOUND`, `DUPLICATED_CLIENT_ID`, `INVALID_SYMBOL`, `INVALID_TOKEN`, `INVALID_ETHEREUM_ADDRESS`, `INVALID_ETHEREUM_SIGNATURE`, `INVALID_STARKNET_ADDRESS`, `INVALID_STARKNET_SIGNATURE`, `STARKNET_SIGNATURE_VERIFICATION_FAILED`, `ETHEREUM_SIGNER_MISMATCH`, `ETHEREUM_HASH_MISMATCH`, `NOT_ONBOARDED`, `INVALID_TIMESTAMP`, `INVALID_BLOCK_EXPIRATION`, `ACCOUNT_NOT_FOUND`, `MEDIA_NOT_FOUND`, `INVALID_ORDER_SIGNATURE`, `PUBLIC_KEY_INVALID`, `UNAUTHORIZED_ETHEREUM_ADDRESS`, `UNAUTHORIZED_ERROR`, `ETHEREUM_ADDRESS_ALREADY_ONBOARDED`, `EVM_ADDRESS_ALREADY_ONBOARDED`, `MARKET_NOT_FOUND`, `ALLOWLIST_ENTRY_NOT_FOUND`, `USERNAME_IN_USE`, `GEO_IP_BLOCK`, `ETHEREUM_ADDRESS_BLOCKED`, `PROGRAM_NOT_FOUND`, `PROGRAM_NOT_SUPPORTED`, `INVALID_DASHBOARD`, `MARKET_NOT_OPEN`, `MARKET_NOT_SETTLED`, `INVALID_REFERRAL_CODE`, `REQUEST_NOT_ALLOWED`, `PARENT_ADDRESS_ALREADY_ONBOARDED`, `INVALID_PARENT_ACCOUNT`, `INVALID_VAULT_OPERATOR_CHAIN`, `VAULT_OPERATOR_ALREADY_ONBOARDED`, `VAULT_NAME_IN_USE`, `VAULT_NOT_FOUND`, `VAULT_STRATEGY_NOT_FOUND`, `VAULT_LIMIT_REACHED`, `VAULT_DATA_PRIVATE`, `BATCH_SIZE_OUT_OF_RANGE`, `ISOLATED_MARKET_ACCOUNT_MISMATCH`, `NO_ACCESS_TO_MARKET`, `POINTS_SUMMARY_NOT_FOUND`, `ALGO_ID_NOT_FOUND`, `INVALID_DERIVATION_PATH`, `PROFILE_STATS_NOT_FOUND`, `INVALID_CHAIN`, `INVALID_LAYERSWAP_SWAP`, `SOCIAL_USERNAME_IN_USE`, `INVALID_OAUTH_REQUEST`, `RPI_ACCOUNT_NOT_WHITELISTED`, `SYSTEM_STATUS_POST_ONLY`, `SYSTEM_STATUS_CANCEL_ONLY`, `INVALID_MARKETING_CODE`, `OFFER_NOT_FOUND`, `MARKET_MARGIN_RESTRICTED`, `NOT_UNIQUE`, `ACCOUNT_ALREADY_REFERRED`, `ONBOARDING_PERIOD_EXPIRED`, `ONBOARDING_RATE_LIMITED`, `SUBACCOUNTS_LIMIT_EXCEEDED`, `INSUFFICIENT_MIN_CHAIN_BALANCE`, `INSUFFICIENT_EVM_BALANCE`, `PORTFOLIO_MARGIN_ONBOARDING_DISABLED`, `PORTFOLIO_MARGIN_INVALID_ACCOUNT_KIND`, `EVM_VAULT_OPERATORS_DISABLED`, `INVALID_EVM_SIGNATURE`, `EVM_SIGNATURE_VERIFICATION_FAILED`, `INVALID_SUBKEY`, `SUBKEY_NOT_ACTIVATABLE`, `TOKEN_LIMIT_REACHED`, `INVALID_TOKEN_SCOPE`, `IP_NOT_ALLOWED`, `INSUFFICIENT_TRANSFERRABLE_XP`, `TRANSFER_LIMIT_REACHED`, `XP_TRANSFERS_DISABLED`, `BLOCK_TRADE_NOT_FOUND`, `BLOCK_TRADE_NOT_ENABLED`, `BLOCK_TRADE_EXPIRED`, `BLOCK_TRADE_ALREADY_CANCELLED`, `BLOCK_TRADE_INVALID_STATUS`, `BLOCK_TRADE_UNAUTHORIZED`, `BLOCK_TRADE_MISSING_TRADES`, `BLOCK_TRADE_MISSING_SIGNERS`, `BLOCK_TRADE_MISSING_SIGNATURE`, `BLOCK_TRADE_ACCOUNT_MISMATCH`, `BLOCK_TRADE_INVALID_SIGNATURE`, `BLOCK_TRADE_SIGNER_KEY_UNAUTHORIZED`, `BLOCK_TRADE_REPLAYED_SIGNATURE`, `BLOCK_TRADE_SELF_TRADE`, `OFFER_ALREADY_CANCELLED`, `OFFER_INVALID_STATUS`, `OFFER_UNAUTHORIZED`, `OFFER_PARENT_MISMATCH`, `OFFER_PARENT_NOT_ACCEPTING`, `PORTFOLIO_MARGIN_CONFIG_NOT_FOUND`, `MARGIN_CONFIG_NOT_FOUND`, `MMP_CONFIG_INVALID`, `MMP_NOT_ENABLED`, `MMP_MIN_FREEZE_NOT_ELAPSED`, `MMP_NOT_CONFIGURED`
- `message` (string, optional) — detailed description of error and how to address it

## Types

### requests.Utm

- `campaign` (string, optional) — UTM campaign parameter
- `source` (string, optional) — UTM source parameter
- `type` (string, optional) — UTM type parameter

### ResponsesApiErrorData

any additional data related to the error

## Examples

**Request**

```json
{}
```

**Response**

```json
{}
```

**SDK Code**

```python
import requests
headers = {
  'Content-Type': 'application/json',
  'Accept': 'application/json',
  'PARADEX-ETHEREUM-ACCOUNT': 'string',
  'PARADEX-STARKNET-ACCOUNT': 'string',
  'PARADEX-STARKNET-SIGNATURE': 'string'
}

r = requests.post('https://api.prod.paradex.trade/v1/onboarding', headers = headers)

print(r.json())

```

```javascript
const inputBody = {
  "public_key": "0x3d9f2b2e5f50c1aade60ca540368cd7490160f41270c192c05729fe35b656a9",
  "referral_code": "cryptofox8"
};
const headers = {
  'Content-Type':'application/json',
  'Accept':'application/json',
  'PARADEX-ETHEREUM-ACCOUNT':'string',
  'PARADEX-STARKNET-ACCOUNT':'string',
  'PARADEX-STARKNET-SIGNATURE':'string'
};

fetch('https://api.prod.paradex.trade/v1/onboarding',
{
  method: 'POST',
  body: inputBody,
  headers: headers
})
.then(function(res) {
    return res.json();
}).then(function(body) {
    console.log(body);
});

```

```go
package main
import (
      "bytes"
      "net/http"
)

func main() {

    headers := map[string][]string{
        "Content-Type": []string{"application/json"},
        "Accept": []string{"application/json"},
        "PARADEX-ETHEREUM-ACCOUNT": []string{"string"},
        "PARADEX-STARKNET-ACCOUNT": []string{"string"},
        "PARADEX-STARKNET-SIGNATURE": []string{"string"},
    }

    data := bytes.NewBuffer([]byte{jsonReq})
    req, err := http.NewRequest("POST", "https://api.prod.paradex.trade/v1/onboarding", data)
    req.Header = headers

    client := &http.Client{}
    resp, err := client.Do(req)
    // ...
}

```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.prod.paradex.trade/v1/onboarding")

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

request = Net::HTTP::Post.new(url)
request["PARADEX-ETHEREUM-ACCOUNT"] = 'PARADEX-ETHEREUM-ACCOUNT'
request["PARADEX-STARKNET-ACCOUNT"] = 'PARADEX-STARKNET-ACCOUNT'
request["PARADEX-STARKNET-SIGNATURE"] = 'PARADEX-STARKNET-SIGNATURE'
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.prod.paradex.trade/v1/onboarding")
  .header("PARADEX-ETHEREUM-ACCOUNT", "PARADEX-ETHEREUM-ACCOUNT")
  .header("PARADEX-STARKNET-ACCOUNT", "PARADEX-STARKNET-ACCOUNT")
  .header("PARADEX-STARKNET-SIGNATURE", "PARADEX-STARKNET-SIGNATURE")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.prod.paradex.trade/v1/onboarding', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
    'PARADEX-ETHEREUM-ACCOUNT' => 'PARADEX-ETHEREUM-ACCOUNT',
    'PARADEX-STARKNET-ACCOUNT' => 'PARADEX-STARKNET-ACCOUNT',
    'PARADEX-STARKNET-SIGNATURE' => 'PARADEX-STARKNET-SIGNATURE',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.prod.paradex.trade/v1/onboarding");
var request = new RestRequest(Method.POST);
request.AddHeader("PARADEX-ETHEREUM-ACCOUNT", "PARADEX-ETHEREUM-ACCOUNT");
request.AddHeader("PARADEX-STARKNET-ACCOUNT", "PARADEX-STARKNET-ACCOUNT");
request.AddHeader("PARADEX-STARKNET-SIGNATURE", "PARADEX-STARKNET-SIGNATURE");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "PARADEX-ETHEREUM-ACCOUNT": "PARADEX-ETHEREUM-ACCOUNT",
  "PARADEX-STARKNET-ACCOUNT": "PARADEX-STARKNET-ACCOUNT",
  "PARADEX-STARKNET-SIGNATURE": "PARADEX-STARKNET-SIGNATURE",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.prod.paradex.trade/v1/onboarding")! 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()
```