Masters India

E Invoicing API for E Invoice System

Use E Invoice APIs to build your own E-Invoicing application. To submit e invoice into e invoicing portal. Make e invoicing process easy and fast.

E Invoicing API for E Invoice System

E-Invoicing Functions Available as API

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What is E Invoice API?

e Invoice API with reference to the E invoicing system is to facilitate the communication and exchange of data between taxpayers or GSPs (GST Suvidha Providers), and the e invoice system. As per API specifications, two separate software components are required to work with each other to facilitate e invoice API and to provide e invoice services to taxpayers. The e invoicing system of India uses RESTful web services to provide various services to taxpayers such as filing returns, registration, viewing ledgers and making online payments etc.

Following HTTP methods are used in the APIs for e invoicing

  • GET - To fetch data from e-Invoice system
  • POST - To submit data into e-Invoice system
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More Information About GST E Invoice API Are Available in the Respective Below API Documentation

What is E Invoice System?

The e invoice system is a system is build to make the e invoicing process easy for business or enterprises or for all GST-registered business. So they can upload their B2B invoices on the e invoicing portal or IRP ie Invoice Registration Portal. The IRP then generates and returns a unique Invoice Reference Number (IRN), digitally signed e invoice with QR code to the user.

Why E Invoice API?

Through APIs E invoice management is very convenient for business teams as they can create IRN generate Einvoice in their system on time with no government einvoice portal dependency. E with the E invoice API users or business or all GST-registered business can generate IRN and create E invoice for services and goods easily in theri own ERP or systems or einvoice developer portal. e invoice in busy or e invoicing in SAP can be possible through einvoice API.

Purpose of Using Online Invoicing API Under GST

E invoice APIs are convenient for taxpayers. With help of it, they can use third-party applications such as einvoice developer portal that provide a variety of interfaces on desktops and on laptops and mobiles to connect with the e invoice system. These third-party applications like e invoice API developer portal connect with the e invoicing portal via einvoice API to provide smooth, better and more convenient facilities to GST taxpayers.

einvoice API providers help taxpayers to generate their e invoices under their respective ERP software and the taxpayer then reports the same on the IRP i.e Invoice Registration Portal. The IRP has constructed the e-invoice process via an API mode. The taxpayers now with the help of the e invoice API can generate e invoices directly through their system and they do not require e invoicing portal to create.

Users of EInvoice API

Taxpayers and GSPs can use e invoice API to adhere to various GST compliances. However, there are some exemptions too from e-invoicing and QR code generation. Sectors such as insurance, banking, financial and NBFCs, GTA, passenger transportation services and movie tickets have been granted exemptions. It means they are not mandatorily required to generate e-invoicing and QR codes.

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Different Types of e Invoice API

There are different types of API for e invoicing. These are given below:-

  • Authentication - to use any API authentication is required. For this, an Authentication API call is essential to get a token. Once a token is generated then you can use that token in other APIs for further use and to create e invoice or generate, cancel IRN.
  • Generate invoice Reference Number (IRN)
  • Cancel IRN - you can canel your einvoice you submitted over E invoice portal -
  • Get IRN details - Get an IRN number over e invoice with this GST e invoice API
  • Generate e-way bill by IRN - once IRN is generated in your Invoice in E invoice system then you can create the final e invoice with this einvoice API
  • Get GSTIN details -
  • Cancel E-way bill
  • Sync GSTIN details from CP (Common Portal) to e invoice system or e invoice portal
  • Get e-way bill details by IRN - with this API you can check or get the E invoice data view in JSON form.
  • Get IRN details by document details - fetch the invoice Reference Number
  • Health API
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Advantages or Benefits of Using Masters India’s E invoicing API

Masters India’s e-invoice API support team is very prompt in replying to queries and in resolving disputes. There are so many advantages and benefits of using Masters India’s e-invoice API. These are given below:-

  • Masters India provides so many APIs for generating e-invoices for taxpayers. This becomes easy and convenient for taxpayers to generate their e-invoice bills.
  • API e invoice provides a smooth and obstacle-free integration between the ERP and the e invoice system.
  • APIs avoid duplicity or double entry of invoices.
  • APIs eliminate and reduce the scope of errors during the entry of invoices.
  • Masters India’s e invoice API enables the taxpayers to enter the data just once in their ERP and thereafter the APIs will transfer this data to the e invoicing portal on its own without requiring external support or help. You can perform E invoicing in SAP or Einvoicing in Busy or einvoicing in tally prime easily by integrating the E invoicing API
  • Einvoice API has made e invoicing process easy and ready to go for business of all size.
  • Save Time & Efforts - make syncing and management of einvoice Simple & Fast.


What is the procedure of e-invoicing under GST?

To enable Einvoicing for first-time users follow the below steps

  1. Visit the e-invoice portal 
  2. Then go to the Registration menu 
  3. click on the 'e-Invoice toggle button
  4. Enter GSTIN for which you are enabling Einvoice  
  5. Verify OTP
  6. Add turnover details as per the financial year
  7. Final Step Enabled
What is the cost of e-invoicing API?

Cost is very minimal charged by the Einvoice API provider to the user.

Is it mandatory to register API in e invoice?

No,  it is not mandatory to register but, for invoice you can purchase the  API for internal usage in system.

What are the requirements for e-invoicing system?

The Important sections detail required by e-invoicing system in e invoice are basic details, information of supplier and recipient, shipped item details, invoice summary, total value & tax value.

What is the limit on the new limit for e-invoicing under GST?

Old limit for e-invoicing under GST was 20 crore above , but new limit comes in 2023 is e invoice mandatory for the firms whose turnover is Rs 5 cr or exceeds hence drawing the limit lower down to Rs 10 cr.

What is e-invoice System?

The e invoice system is build to make the e invoicing process easy for all GST-registered business. So they can upload their GST Invoices into the System and Generate the IRN & QR code for their invoice.

What are the rules regarding e-invoicing?

Create an invoice that contains the information on GST. To create an einvoice a business should be in a category or turnover above 20 Cr. to create an invoice a business must be in the category of goods or services to create einvoice for services or goods.

What is API in e-invoicing?

An application programming interface (API) for Einvoice for two or more computer systems or programs to communicate with each other like here the User who generates the IRN & Einvoice and the government E invoice portal where the E invoice process will get complete and update to the other system or user using it.

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