Knowledge Base
Knowledge Base

Webplanex GST APIs

By Krupali
Updated on September 17, 2026

The WebPlanex GST Invoice India App provides APIs that allow you to integrate with WebPlanex and retrieve PDF invoices for your orders.

You can use the WebPlanex GST APIs to fetch generated invoice PDFs and integrate them with your own system or workflow.

Note: The GST API to download invoices is available only on Advanced and Advanced Plus plans.

After connecting the API, the API status will be Pending by default. Please contact the WebPlanex Support Team to activate the API.

Authentication

To access the API, you must include your API key in the request headers.

Headers

  • Authorization: Bearer YOUR_API_KEY
  • Accept: application/json

Replace YOUR_API_KEY with the API key generated for your store.

How to Generate a WebPlanex GST API Key

  1. Go to the WebPlanex GST Invoice India App.
  2. Go to Integrations > WebPlanex GST APIs.
  3. Click on the Get API Key button to generate a token for your store.

Base URL

All API endpoints are accessible via the following base URL:

https://gst.webplanex.biz/

Endpoints

  • Get Invoice

    Endpoint:

    /api/get-invoice?shop={{shopify_store_url}}&order_id={{shopify_order_id}}

    Request Method: GET

    Description: Retrieve the PDF invoice URL for a specific Shopify order.

    Response:

    A 200 OK status indicates that the API request was successfully processed and the invoice URL was retrieved.

    {
        "status": 200,
        "message": "Invoice URL fetched successfully",
        "invoice_url": "https://gst.webplanex.biz/download-invoice"
    }

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