Upsert a buyer (create or return existing by VAT).
curl --request POST \
--url https://api.novatrade24.com/v1/partners/{sellerId}/buyers \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: <idempotency-key>' \
--data '
{
"vatNumber": "DE123456789",
"companyName": "<string>",
"address": {
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"contacts": [
{
"firstName": "<string>",
"lastName": "<string>",
"email": "[email protected]",
"phone": "<string>"
}
]
}
'import requests
url = "https://api.novatrade24.com/v1/partners/{sellerId}/buyers"
payload = {
"vatNumber": "DE123456789",
"companyName": "<string>",
"address": {
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"contacts": [
{
"firstName": "<string>",
"lastName": "<string>",
"email": "[email protected]",
"phone": "<string>"
}
]
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"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: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
vatNumber: 'DE123456789',
companyName: '<string>',
address: {street: '<string>', postCode: '<string>', city: '<string>', country: 'DE'},
contacts: [
{
firstName: '<string>',
lastName: '<string>',
email: '[email protected]',
phone: '<string>'
}
]
})
};
fetch('https://api.novatrade24.com/v1/partners/{sellerId}/buyers', 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://api.novatrade24.com/v1/partners/{sellerId}/buyers",
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([
'vatNumber' => 'DE123456789',
'companyName' => '<string>',
'address' => [
'street' => '<string>',
'postCode' => '<string>',
'city' => '<string>',
'country' => 'DE'
],
'contacts' => [
[
'firstName' => '<string>',
'lastName' => '<string>',
'email' => '[email protected]',
'phone' => '<string>'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"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://api.novatrade24.com/v1/partners/{sellerId}/buyers"
payload := strings.NewReader("{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Idempotency-Key", "<idempotency-key>")
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(string(body))
}HttpResponse<String> response = Unirest.post("https://api.novatrade24.com/v1/partners/{sellerId}/buyers")
.header("Idempotency-Key", "<idempotency-key>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.novatrade24.com/v1/partners/{sellerId}/buyers")
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"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"vatNumber": "<string>",
"companyName": "<string>",
"address": {
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"kycMode": "MARKETPLACE_LED",
"status": "ACTIVE",
"version": 123,
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
}{
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"vatNumber": "<string>",
"companyName": "<string>",
"address": {
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"kycMode": "MARKETPLACE_LED",
"status": "ACTIVE",
"version": 123,
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>",
"rejectedValue": "<unknown>"
}
]
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}Buyers
Upsert a buyer (create or return existing by VAT).
Upserts a buyer by (sellerId, vatNumber). Second call with identical
body returns 200 with the existing buyer. Second call with a different
body returns 409 with the current resource (use PATCH to update
fields explicitly).
Requires Idempotency-Key header for network-retry safety.
kycMode is required. MARKETPLACE_LED is rejected with 403 when
the organization’s allowMarketplaceLedKyc capability is false.
POST
/
partners
/
{sellerId}
/
buyers
Upsert a buyer (create or return existing by VAT).
curl --request POST \
--url https://api.novatrade24.com/v1/partners/{sellerId}/buyers \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--header 'Idempotency-Key: <idempotency-key>' \
--data '
{
"vatNumber": "DE123456789",
"companyName": "<string>",
"address": {
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"contacts": [
{
"firstName": "<string>",
"lastName": "<string>",
"email": "[email protected]",
"phone": "<string>"
}
]
}
'import requests
url = "https://api.novatrade24.com/v1/partners/{sellerId}/buyers"
payload = {
"vatNumber": "DE123456789",
"companyName": "<string>",
"address": {
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"contacts": [
{
"firstName": "<string>",
"lastName": "<string>",
"email": "[email protected]",
"phone": "<string>"
}
]
}
headers = {
"Idempotency-Key": "<idempotency-key>",
"Authorization": "Bearer <token>",
"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: 'Bearer <token>',
'Content-Type': 'application/json'
},
body: JSON.stringify({
vatNumber: 'DE123456789',
companyName: '<string>',
address: {street: '<string>', postCode: '<string>', city: '<string>', country: 'DE'},
contacts: [
{
firstName: '<string>',
lastName: '<string>',
email: '[email protected]',
phone: '<string>'
}
]
})
};
fetch('https://api.novatrade24.com/v1/partners/{sellerId}/buyers', 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://api.novatrade24.com/v1/partners/{sellerId}/buyers",
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([
'vatNumber' => 'DE123456789',
'companyName' => '<string>',
'address' => [
'street' => '<string>',
'postCode' => '<string>',
'city' => '<string>',
'country' => 'DE'
],
'contacts' => [
[
'firstName' => '<string>',
'lastName' => '<string>',
'email' => '[email protected]',
'phone' => '<string>'
]
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"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://api.novatrade24.com/v1/partners/{sellerId}/buyers"
payload := strings.NewReader("{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Idempotency-Key", "<idempotency-key>")
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(string(body))
}HttpResponse<String> response = Unirest.post("https://api.novatrade24.com/v1/partners/{sellerId}/buyers")
.header("Idempotency-Key", "<idempotency-key>")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.novatrade24.com/v1/partners/{sellerId}/buyers")
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"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"vatNumber\": \"DE123456789\",\n \"companyName\": \"<string>\",\n \"address\": {\n \"street\": \"<string>\",\n \"postCode\": \"<string>\",\n \"city\": \"<string>\",\n \"country\": \"DE\"\n },\n \"contacts\": [\n {\n \"firstName\": \"<string>\",\n \"lastName\": \"<string>\",\n \"email\": \"[email protected]\",\n \"phone\": \"<string>\"\n }\n ]\n}"
response = http.request(request)
puts response.read_body{
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"vatNumber": "<string>",
"companyName": "<string>",
"address": {
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"kycMode": "MARKETPLACE_LED",
"status": "ACTIVE",
"version": 123,
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
}{
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"vatNumber": "<string>",
"companyName": "<string>",
"address": {
"uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"street": "<string>",
"postCode": "<string>",
"city": "<string>",
"country": "DE"
},
"kycMode": "MARKETPLACE_LED",
"status": "ACTIVE",
"version": 123,
"createdAt": "2023-11-07T05:31:56Z",
"updatedAt": "2023-11-07T05:31:56Z"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>",
"errors": [
{
"field": "<string>",
"message": "<string>",
"rejectedValue": "<unknown>"
}
]
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}{
"type": "<string>",
"title": "<string>",
"status": 123,
"detail": "<string>",
"instance": "<string>",
"traceId": "<string>"
}Authorizations
OAuth 2.0 client_credentials grant via Keycloak service account.
Clients are provisioned per IntegrationOrganization in the
nt24-idp realm.
Headers
Client-generated unique key (UUID recommended) for this write operation.
Identical key + identical body within 24h returns the cached response.
Identical key + different body returns 422.
Required string length:
1 - 255Path Parameters
UUID of the seller trade partner (must be in caller's authorized list).
Body
application/json
MARKETPLACE_LED (Mode A) — partner provides KYC data; NT24 stores + runs VIES only.
NT24_LED (Mode B) — NT24 runs full verification (iDenfy + AML) and generates a profile.
Available options:
MARKETPLACE_LED, NT24_LED Example:
"DE123456789"
Show child attributes
Show child attributes
Show child attributes
Show child attributes
Response
Existing buyer returned.
Show child attributes
Show child attributes
MARKETPLACE_LED (Mode A) — partner provides KYC data; NT24 stores + runs VIES only.
NT24_LED (Mode B) — NT24 runs full verification (iDenfy + AML) and generates a profile.
Available options:
MARKETPLACE_LED, NT24_LED Available options:
ACTIVE, BLOCKED Optimistic-concurrency version.
⌘I