Create cart

Opens an empty cart for a shopper to fill, and answers it with its new id.

POST /v1/commerce/cart

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Address	`https://api.hanzo.ai/v1/commerce/cart`
Method	`POST`
Operation	`openCart`
Auth	`Authorization: Bearer $HANZO_API_KEY`

Opens an empty cart for a shopper to fill, and answers it with its new id.

This is the first step of a sale: hold the id, add items to it with setCartItem, then hand it to checkout. Every field of the request is optional — an empty body opens a perfectly good anonymous cart — and the fields exist only to pre-fill what is already known about the shopper.

The STORE defaults to the org's own default storefront, so a merchant selling through one storefront never has to name it. The CURRENCY defaults to usd; note that checkout overrides it with the store's own currency when the sale is authorized, so a currency set here is a hint rather than a commitment.

The cart is created in the CALLER'S OWN org namespace, taken from the validated principal and never from the body, so a cart can never be opened on another tenant's books.

A named handler, not a closure, so zipdoc can lift this prose into the registry.

Request

4 fields, body application/json (required).

Field	In	Type	Required	Description
`currency`	body	string	—	Currency is the ISO 4217 code the cart is priced in, lower-cased.
`email`	body	string	—	Email is the shopper's address, for a cart that belongs to someone who has not signed in.
`store`	body	string	—	Store is the storefront this cart is being filled on.
`user`	body	string	—	User is the id of the signed-in shopper this cart belongs to, when there is one.

Response

Status	Body	Meaning
`201`	Cart	created
`default`	problem-details	refused

201 body — 23 fields.

Field	In	Type	Always	Description
`createdAt`	body	string	—	CreatedAt is when the cart was opened, RFC3339.
`currency`	body	string	—	Currency is the ISO 4217 code every amount below is denominated in.
`discountCents`	body	integer (int64)	—	DiscountCents is what coupons and promotions took off, in whole cents.
`email`	body	string	—	Email is the shopper's address, when the cart carries one.
`id`	body	string	—	ID is the cart's id — what every other cart op addresses it by, and what a storefront persists against the browser session.
`items`	body	CartItem[]	—	Items are the cart's lines, in the order they were added.
`items[].free`	body	boolean	—	Free reports a line that costs nothing because a coupon or a promotion made it so, rather than because its price is zero.
`items[].id`	body	string	—	ID is the line's identity — the variant id when the line is a variant, otherwise the product id.
`items[].kind`	body	string	—	Kind is "variant" when this line is a specific sellable variant and "product" when it is the product itself.
`items[].name`	body	string	—	Name is the item's display name, cached onto the line when it was added so a cart renders without a second read.
`items[].priceCents`	body	integer (int64)	—	PriceCents is the unit price in whole cents, cached at the moment the line was added.
`items[].quantity`	body	integer (int64)	—	Quantity is how many units of this item the cart holds.
`items[].sku`	body	string	—	SKU is the line's stock-keeping unit — the variant's when it has one, otherwise the product's.
`lineTotalCents`	body	integer (int64)	—	LineTotalCents is the sum of the lines before any discount, in whole cents.
`order`	body	string	—	Order is the order this cart became, once checkout completed it.
`shippingCents`	body	integer (int64)	—	ShippingCents is the shipping charge, in whole cents.
`status`	body	string	—	Status is "active" for a cart still being filled, "ordered" once checkout turned it into an order, and "discarded" when the shopper abandoned it.
`store`	body	string	—	Store is the storefront the cart is being filled on.
`subtotalCents`	body	integer (int64)	—	SubtotalCents is LineTotalCents less DiscountCents, in whole cents.
`taxCents`	body	integer (int64)	—	TaxCents is the sales tax, in whole cents.
`totalCents`	body	integer (int64)	—	TotalCents is what the shopper pays: subtotal plus shipping plus tax, in whole cents.
`updatedAt`	body	string	—	UpdatedAt is when the cart was last amended, RFC3339.
`user`	body	string	—	User is the signed-in shopper this cart belongs to, empty for a guest cart.

Failure carries the platform error shape — see Errors.

Examples

CLI

SDK

HTTP

MCP

hanzo commerce cart create

.ts

.py

.go

.rs

.java

import { Configuration, CommerceApi } from 'hanzoai';

const api = new CommerceApi(new Configuration({ accessToken: process.env.HANZO_API_KEY }));
const { data } = await api.openCart({ currency: "<currency>", email: "<email>" });

from hanzoai.cloud import ApiClient, Configuration
from hanzoai.cloud.api import CommerceApi

client = ApiClient(Configuration(access_token=os.environ["HANZO_API_KEY"]))
result = CommerceApi(client).open_cart(currency="<currency>", email="<email>")

cfg := hanzoai.NewConfiguration()
cfg.AddDefaultHeader("Authorization", "Bearer "+os.Getenv("HANZO_API_KEY"))
client := hanzoai.NewAPIClient(cfg)

resp, _, err := client.CommerceAPI.OpenCart(context.Background()).Execute()
if err != nil {
	return err
}

use hanzo_client::apis::{configuration::Configuration, commerce_api};

let mut cfg = Configuration::new();
cfg.bearer_access_token = std::env::var("HANZO_API_KEY").ok();

let result = commerce_api::open_cart(&cfg, Default::default()).await?;

import ai.hanzo.cloud.ApiClient;
import ai.hanzo.cloud.api.CommerceApi;

ApiClient client = new ApiClient();
client.setBearerToken(System.getenv("HANZO_API_KEY"));

var result = new CommerceApi(client).openCart();

curl -X POST https://api.hanzo.ai/v1/commerce/cart \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "currency": "<currency>",
       "email": "<email>"
     }'

Tool commerce, op openCart — POST the JSON-RPC envelope to https://api.hanzo.ai/v1/mcp.

curl -X POST https://api.hanzo.ai/v1/mcp \
  -H "Authorization: Bearer $HANZO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
       "jsonrpc": "2.0",
       "id": 1,
       "method": "tools/call",
       "params": {
         "name": "commerce",
         "arguments": {
           "op": "openCart",
           "input": {
             "currency": "<currency>",
             "email": "<email>"
           }
         }
       }
     }'

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