Zoho Inventory API Server

Authentication

Login with Zoho Refresh Token

API Actions

Get Items Get Invoices Get Customers Get Contacts Debug: List Taxes (for GST_*_ID) Sync Customers to DB (patients table)

All Endpoints

Method	Endpoint	Description
GET	/api/sync-customers	Sync Zoho customers to patients table
GET	/api/items	List all items from Zoho
GET	/api/items/<item_id>	Get one item with batches (for batch_number)
GET	/api/items/batches/by-name?name=ItemName	Get batches by item name (for products[].batch_number)
GET	/api/invoices	List all invoices from Zoho
GET	/api/customers	List all customers from Zoho
POST	/api/invoice	Create new invoice
POST	/api/invoice/delete	Delete Zoho invoice (body: zoho_invoice_id)
DELETE	/api/invoice/<id>	Delete Zoho invoice by ID
GET	/api/invoice/<id>/pdf	Download invoice as PDF
GET	/api/contacts	List all contacts from Zoho
GET	/api/debug/taxes	List Zoho taxes (tax_id, %) — set CONFIG GST_0_ID, GST_5_ID, etc.
GET	/auth/clear-tax-cache	Clear cached tax list
POST	/create/invoice	Full flow: check/create customer + items, create invoice, email it
GET	/token	Get token info as JSON