curl --request POST \
  --url https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "email": "[email protected]",
  "verification": {
    "method": "partner_asserted",
    "verifiedAt": "2026-08-28T10:00:00.000Z",
    "reference": "example"
  }
}
'

import requests

url = "https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges"

payload = {
    "email": "[email protected]",
    "verification": {
        "method": "partner_asserted",
        "verifiedAt": "2026-08-28T10:00:00.000Z",
        "reference": "example"
    }
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Basic <encoded-value>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    email: '[email protected]',
    verification: {
      method: 'partner_asserted',
      verifiedAt: '2026-08-28T10:00:00.000Z',
      reference: 'example'
    }
  })
};

fetch('https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'email' => '[email protected]',
    'verification' => [
        'method' => 'partner_asserted',
        'verifiedAt' => '2026-08-28T10:00:00.000Z',
        'reference' => 'example'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges"

	payload := strings.NewReader("{\n  \"email\": \"[email protected]\",\n  \"verification\": {\n    \"method\": \"partner_asserted\",\n    \"verifiedAt\": \"2026-08-28T10:00:00.000Z\",\n    \"reference\": \"example\"\n  }\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Basic <encoded-value>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"email\": \"[email protected]\",\n  \"verification\": {\n    \"method\": \"partner_asserted\",\n    \"verifiedAt\": \"2026-08-28T10:00:00.000Z\",\n    \"reference\": \"example\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://prod-api.stableyard.fi/v2/accounts/{accountId}/email/verification-challenges")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"email\": \"[email protected]\",\n  \"verification\": {\n    \"method\": \"partner_asserted\",\n    \"verifiedAt\": \"2026-08-28T10:00:00.000Z\",\n    \"reference\": \"example\"\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "contact": {
    "id": "account_contact_123",
    "type": "email",
    "email": "al***@example.com",
    "status": "pending_verification",
    "verifiedAt": "2026-08-28T10:00:00.000Z",
    "verificationMethod": "stableyard_email_otp",
    "createdAt": "2026-08-28T10:00:00.000Z",
    "updatedAt": "2026-08-28T10:00:00.000Z"
  },
  "challenge": {
    "id": "account_email_123",
    "email": "al***@example.com",
    "status": "pending",
    "verificationMethod": "stableyard_email_otp",
    "attemptsRemaining": 0,
    "expiresAt": "2026-08-28T10:00:00.000Z",
    "verifiedAt": "2026-08-28T10:00:00.000Z"
  },
  "nextAction": {
    "type": "none"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}

{
  "error": {
    "code": "bad_request",
    "message": "The request is invalid",
    "details": "example"
  }
}