curl --request POST \
  --url https://commet.co/api/v1/customers/batch \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "customers": [
    {
      "email": "jsmith@example.com",
      "id": "<string>",
      "externalId": "<string>",
      "fullName": "<string>",
      "taxDocument": "<string>",
      "timezone": "UTC",
      "metadata": {}
    }
  ]
}
'

import { Commet } from "@commet/node";

const commet = new Commet({ apiKey: "ck_xxx" });

const customerBatch = await commet.customers.createBatch({ customers: [{ email: "user@example.com" }] });

from commet import Commet

commet = Commet("ck_xxx")

customer_batch = commet.customers.create_batch(customers=[{"email": "user@example.com"}])

client, err := commet.New("ck_xxx")
if err != nil {
	log.Fatal(err)
}
ctx := context.Background()

customerBatch, err := client.Customers.CreateBatch(ctx, &commet.BatchCreateCustomersParams{
	Customers: []commet.BatchCreateCustomersParamsCustomersItem{{
		Email: "user@example.com",
	}},
})
if err != nil {
	log.Fatal(err)
}

import co.commet.Commet;
import co.commet.models.BatchCreateCustomersParamsCustomersItem;
import co.commet.params.BatchCreateCustomersParams;
import java.util.List;

var commet = Commet.builder().apiKey("ck_xxx").build();

var customerBatch = commet.customers().createBatch(
    BatchCreateCustomersParams.builder(List.of(new BatchCreateCustomersParamsCustomersItem("user@example.com", null, null, null, null, null, null, null))).build()
);

use Commet\Commet;

$commet = new Commet('ck_xxx');

$customerBatch = $commet->customers->createBatch(
    customers: [['email' => 'user@example.com']],
);

{
  "successful": [
    {
      "id": "cus_1a2b3c4d",
      "externalId": null,
      "email": "user@example.com"
    }
  ],
  "failed": [],
  "object": "customer_batch",
  "livemode": false
}

{
  "error": {
    "type": "validation_error",
    "code": "validation_error",
    "message": "The request contains an invalid parameter.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/validation_error.md"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "unauthorized",
    "message": "A valid API key is required.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/unauthorized.md"
  }
}

{
  "error": {
    "type": "authentication_error",
    "code": "forbidden",
    "message": "You do not have permission to perform this operation.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/forbidden.md"
  }
}

{
  "error": {
    "type": "conflict_error",
    "code": "idempotency_in_progress",
    "message": "A request with this idempotency key is still being processed.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_in_progress.md"
  }
}

{
  "error": {
    "type": "rate_limit_error",
    "code": "rate_limited",
    "message": "Too many requests. Retry after the interval specified in the Retry-After header.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/rate_limited.md"
  }
}

{
  "error": {
    "type": "internal_error",
    "code": "internal_error",
    "message": "An unexpected error occurred while processing the request.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/internal_error.md"
  }
}

{
  "error": {
    "type": "internal_error",
    "code": "idempotency_unavailable",
    "message": "Idempotency storage is temporarily unavailable. Retry with the same idempotency key.",
    "doc_url": "https://commet.co/docs/api-reference/2026-08-27/errors/idempotency_unavailable.md"
  }
}