Create customer
curl --request POST \
--url https://api.example.com/api/v1/developer/customersimport requests
url = "https://api.example.com/api/v1/developer/customers"
response = requests.post(url)
print(response.text)const options = {method: 'POST'};
fetch('https://api.example.com/api/v1/developer/customers', 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.example.com/api/v1/developer/customers",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.example.com/api/v1/developer/customers"
req, _ := http.NewRequest("POST", url, nil)
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.example.com/api/v1/developer/customers")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/api/v1/developer/customers")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
response = http.request(request)
puts response.read_bodyCustomers
Create customer
Create a new customer record.
POST
/
api
/
v1
/
developer
/
customers
Create customer
curl --request POST \
--url https://api.example.com/api/v1/developer/customersimport requests
url = "https://api.example.com/api/v1/developer/customers"
response = requests.post(url)
print(response.text)const options = {method: 'POST'};
fetch('https://api.example.com/api/v1/developer/customers', 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.example.com/api/v1/developer/customers",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.example.com/api/v1/developer/customers"
req, _ := http.NewRequest("POST", url, nil)
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.example.com/api/v1/developer/customers")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/api/v1/developer/customers")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
response = http.request(request)
puts response.read_bodyRequired scope:
PII fields are stored encrypted at rest with deterministic lookup hashes used
for de-duplication.
customers:write
Rate limit: 60 requests/minute
Status code on success: 201 Created
Idempotency: supported – pass Idempotency-Key to safely retry. See Idempotency.
Request body
| Field | Type | Required | Notes |
|---|---|---|---|
email | string (email) | yes | Must be unique within your tenant |
first_name | string | no | Up to 255 characters |
last_name | string | no | Up to 255 characters |
Response
{
"id": "c0ffee00-0000-4000-8000-000000000002",
"email": "newcustomer@example.com",
"first_name": "Jamie",
"last_name": "New",
"total_ltv": "0.00",
"created_at": "2026-04-26T01:23:45Z",
"location_id": null
}
Errors
409 "Customer with this email already exists"– a customer with that email already exists in your tenant. Look up the existing record viaGET /developer/customers?search={email}.409 "Idempotency-Key was reused with a different request body. Use a fresh Idempotency-Key for a different operation."– the suppliedIdempotency-Keywas reused with a different request body within the 24h replay window. See Idempotency.409 "A duplicate request is already being processed. Please wait a moment and try again."– a request with the sameIdempotency-Keyis still in flight. Retry shortly.422– Validation error (e.g. malformed email).
Examples
curl -X POST \
-H "X-API-Key: vg_live_EXAMPLEdoNotUseThis123456" \
-H "Content-Type: application/json" \
-d '{
"email": "newcustomer@example.com",
"first_name": "Jamie",
"last_name": "New"
}' \
https://api.vouchergrid.com/api/v1/developer/customers
const res = await fetch(
"https://api.vouchergrid.com/api/v1/developer/customers",
{
method: "POST",
headers: {
"X-API-Key": process.env.VOUCHERGRID_API_KEY!,
"Content-Type": "application/json",
},
body: JSON.stringify({
email: "newcustomer@example.com",
first_name: "Jamie",
last_name: "New",
}),
},
);
const customer = await res.json();