> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cocartapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Payment Context

> Create a secure payment context for client-side payment processing

<Warning>
  This endpoint is currently shown as a preview of what's currently in development and is subject to change.
</Warning>


## OpenAPI

````yaml api-reference/pre-release/openapi-spec-preview.yaml post /checkout/payment-context
openapi: 3.0.3
info:
  title: CoCart Preview API
  description: >
    CoCart Preview provides enhanced REST API endpoints for WooCommerce headless
    e-commerce solutions.

    This API extends CoCart with additional functionality for checkout, customer
    account management, and order handling.


    ## Authentication


    The API supports multiple authentication methods:

    - **Cart Key**: For guest customers, pass the cart key via `Cart-Key` header
    or `cart_key` parameter

    - **Basic Auth**: For registered customers using username/password

    - **JWT**: For registered customers using JWT tokens (requires JWT plugin)

    - **Session**: For logged-in WordPress users


    ## Base URL


    All API endpoints are prefixed with `/wp-json/cocart/preview/`


    ## Response Format


    All responses follow the CoCart standard format with consistent error
    handling and data structure.
  termsOfService: http://cocartapi.com/terms-of-conditions-polar/
  contact:
    email: support@cocartapi.com
  license:
    name: GNU General Public License v3.0
    url: http://www.gnu.org/licenses/gpl-3.0.html
  version: 0.0.1
servers:
  - url: '{protocol}://{host}/wp-json/cocart/preview'
    description: API Preview
    variables:
      protocol:
        enum:
          - http
          - https
        default: https
      host:
        default: example-store.com
        description: Your store domain
security: []
tags:
  - name: Checkout
    description: Complete checkout process including payment and order creation
  - name: My Account
    description: Customer account information and profile management
  - name: My Orders
    description: Customer order history and details
  - name: My Downloads
    description: Customer digital downloads
  - name: My Subscriptions
    description: Customer subscription management
externalDocs:
  description: Find out more about CoCart API
  url: https://docs.cocartapi.com
paths:
  /checkout/payment-context:
    post:
      tags:
        - Checkout
      summary: Create payment context
      description: Create a secure payment context for client-side payment processing
      operationId: createPaymentContext
      requestBody:
        description: Payment method for context creation
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PaymentContextRequest'
      responses:
        '200':
          description: Payment context created successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaymentContext'
              examples:
                paymentContext:
                  $ref: '#/components/examples/PaymentContextExample'
        '400':
          description: Bad request - invalid payment method or empty cart
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized - authentication required
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    PaymentContextRequest:
      type: object
      required:
        - payment_method
      properties:
        payment_method:
          type: string
          description: Payment method ID
    PaymentContext:
      type: object
      properties:
        gateway_id:
          type: string
          description: Payment gateway ID
        title:
          type: string
          description: Payment gateway title
        cart_total:
          type: string
          description: Cart total amount
        currency:
          type: string
          description: Currency code
        client_secret:
          type: string
          description: Client secret for payment processing (if applicable)
        payment_intent_id:
          type: string
          description: Payment intent ID (if applicable)
        public_key:
          type: string
          description: Public key for client-side processing (if applicable)
    Error:
      type: object
      required:
        - code
        - message
      properties:
        code:
          type: string
          description: Error code identifier
        message:
          type: string
          description: Human-readable error message
        data:
          type: object
          description: Additional error data
          properties:
            status:
              type: integer
              description: HTTP status code
  examples:
    PaymentContextExample:
      value:
        gateway_id: stripe
        title: Credit Card (Stripe)
        cart_total: '44.98'
        currency: USD
        client_secret: pi_abc123_secret_xyz789
        payment_intent_id: pi_abc123
        public_key: pk_test_abc123xyz789

````