File
GSTR-1, GSTR-3B,
GSTR-9 via API
Enterprise Grade GST, e-Invoice & e-Way Bill APIs | WhiteBooks API Suite
GST APIs, e-Invoice APIs, and e-Way Bill APIs — Secure, Scalable, and Developer-Friendly.
Get API Access View Documentation See Live Demo
25,000+
Active Clients
9 Crore +
e-Invoices Generated
7 Crore +
e-Way Bills Generated
30 Crore +
GST Filing
95%+
Customer
Retention Rate
4.9/5
Average Customer
Rating
Developer-Friendly Integration
India's GSP-certified gateway for tax compliance. Public OpenAPI 3.0 specs, Java / Node.js / Python SDKs, free sandbox, 99.99% uptime SLA. Integrate in hours.
Comprehensive API Documentation
Complete REST API documentation with examples
Sandbox Environment
Test integration before going live — full API surface, no paid plan needed
Multiple Language SDKs
Java, Python, Node.js, .NET libraries — first-party and actively maintained
Error Codes & Diagnostics
Detailed error messages with actionable solutions for fast debugging
Postman Collections
Ready-to-use API collections for instant testing without setup
Webhook Events
Real-time notifications for IRN generation, EWB updates & status changes
OAuth 2.0 & IP Restrictions
TLS 1.2+, role-based access, audit logs — enterprise-grade security built in
// Quick Integration Example
import WhiteBooksConnector from 'wb-sap';
const connector = new WhiteBooksConnector({
apiKey: 'your_api_key',
environment: 'production'
});
// Generate E-Invoice
const result = await connector.generateEInvoice({
sapDocNumber: 'INV-2024-001',
gstin: '29AABCT1234D1Z5',
autoSubmit: true
});
console.log(result.irn);
console.log(result.qrCode);
console.log(result.signedInvoice);
// Quick Integration Example — Java
import in.whitebooks.sdk.WhiteBooksClient;
import in.whitebooks.sdk.model.EInvoiceRequest;
import in.whitebooks.sdk.model.EInvoiceResponse;
WhiteBooksClient client = WhiteBooksClient.builder()
.apiKey("your_api_key")
.environment("production")
.build();
// Generate E-Invoice (IRN)
EInvoiceRequest req = EInvoiceRequest.builder()
.sapDocNumber("INV-2024-001")
.gstin("29AABCT1234D1Z5")
.autoSubmit(true)
.build();
EInvoiceResponse result = client.generateEInvoice(req);
System.out.println(result.getIrn());
System.out.println(result.getQrCode());
System.out.println(result.getSignedInvoice());
# Quick Integration Example — Python
from whitebooks import WhiteBooksClient
client = WhiteBooksClient(
api_key="your_api_key",
environment="production"
)
# Generate E-Invoice (IRN)
result = client.generate_einvoice(
sap_doc_number="INV-2024-001",
gstin="29AABCT1234D1Z5",
auto_submit=True
)
print(result.irn)
print(result.qr_code)
print(result.signed_invoice)
# Quick Integration Example — cURL
# Step 1: Get OAuth 2.0 bearer token
curl -X POST https://api.whitebooks.in/oauth/token \
-H "Content-Type: application/json" \
-d '{
"client_id": "your_client_id",
"client_secret": "your_client_secret",
"grant_type": "client_credentials"
}'
# Step 2: Generate E-Invoice (IRN)
curl -X POST https://api.whitebooks.in/einvoice/v1/generate \
-H "Authorization: Bearer " \
-H "Content-Type: application/json" \
-d '{
"sapDocNumber": "INV-2024-001",
"gstin": "29AABCT1234D1Z5",
"autoSubmit": true
}'
# Response includes irn, qrCode, signedInvoice
GST APIs
Simplify your GST Filing
& Reconciliation
Automate monthly GST compliance with filing, reconciliation, and real-time validation.
Auto ITC matching
from GSTR-2B
Secure, Compliant,
and Audit-Ready
GST Number Search
( Public APIs )
Generate/Cancel IRNs
via e-Invoice APIs
Real-time Signed
JSON & QR code Retrieval
Auto-push to
Accounting/ERP Platforms
Bulk IRN support for
High-Volume Organizations
e-Invoice APIs
Seamless e-Invoicing
at Scale
Generate IRNs, QR codes, and digitally signed invoices directly from your ERP.
Try e-Invoice APIse-Way Bill APIs
Automate Your e-Way Bill Generation and Management
From invoice to shipment, streamline your logistics with real-time e-Way Bill APIs.
Get e-Way Bill API AccessTLS 1.2+, OAuth2, IP restrictions
99.99% uptime SLA
Role-based access for teams
Multi-region deployment with auto-scaling
Detailed logs and audit trail
Enterprise-Grade Architecture
Production-Grade GST APIs — Built for Scale, Speed, and Compliance
Our platform is built to serve enterprises with high volumes, critical compliance needs, and secure data practices.
Try Our WhiteBooks APIsDeveloper Experience
Built for Developers.
Backed by Tools.
Get up and running in hours with complete documentation, sandbox access, and live support.
Access Developer Portal
Swagger
(OpenAPI 3.0) specs
(OpenAPI 3.0) specs
Java
Node.js
Python SDKs
Sandbox with
real-time validation
Smart error codes + debugging hints
Versioned APIs with backward compatibility
Live dashboard to track usage & issues
Use Cases & Integration Partners
Trusted by Platforms,
ERPs, and Fintechs
Serving businesses across India and beyond, from compliance-first startups to global enterprises.
Trusted Partners
All technology Partners, Businesses & Domains
POS, ASP solutions and Other Integrations
Integration with All ERPs
All Accounting Software and platforms
e-Invoice API
e-Way Bill API
GST API
WhiteBooks
Platform
Compliance & Support
GST-Compliant, GSP-
Certified & Backed by Experts
We help you go live faster — and stay compliant always.
Talk to Our Compliance Team
Schedule Integration HelpGSP-certified infrastructure
NIC-compliant API Gateway
Guided onboarding and assisted integration
Dedicated success team for enterprise plans
24x7 developer support via ticket or Teams
APIs for Every Compliance-Driven Industry
Real production deployments across nine verticals — logistics, retail, manufacturing, fintech, pharma, e-commerce, SaaS, CA firms, ERP providers.
Logistics
EWB at scale, transporter sync, vehicle updates
Retail
High-volume POS IRN + GSTR-1 auto-filing
Manufacturing
Multi-GSTIN, branch-wise reconciliation
Fintech
GSTIN verify, vendor risk, KYC enrichment
Pharma
Distributor EWB, batch + expiry compliance
E-Commerce
Marketplace IRN, TCS, returns reconciliation
SaaS
Embedded GST automation in vertical SaaS
CA Firms
Multi-client GSTR-1 / 3B / 9 batch filing
ERP Providers
White-label GSP gateway for SAP / Oracle / Tally
Hospitality
Hotels, QSR, restaurants — sub-100 ms POS IRN at counter throughput
Education
EdTech, universities, coaching — GST on tuition + scholarships
Healthcare
Hospitals, clinics, diagnostics — exempt vs taxable splits
Banking
Banks, NBFCs — fee GST, RCM, reverse charge automation
Insurance
General + life + health — policy-level IRN, claim reverse-IRN
Real Estate
Developers + brokers — RERA-aware GST, advance vs final
Automotive
OEMs + dealers — vehicle IRN, EWB for car movements, dealer DMS
Telecom
Telcos, ISPs — high-volume monthly subscriber IRN
Media & Publishing
Print, OTT, digital — GST on subscriptions + ads
Agritech
Agritech + APMC — exempt vs taxable + EWB at farm-gate
Construction
Civil contractors — works-contract GST, RCM, advances
Energy & Utilities
Power, gas, water utilities — bulk subscriber IRN + RCM
API Products
More from the WhiteBooks API Suite
Beyond GST returns, e-Invoice IRN, and e-Way Bill — vendor intelligence, full GSTR-2B reconciliation, and ZATCA (Saudi Arabia) e-Invoice APIs from the same gateway.
Explore the suiteInfrastructure highlights
- Encrypted API communication (TLS 1.2+)
- Token-based authentication (OAuth 2.0)
- Role-based access controls
- Audit logging (immutable, 7-year retention)
- Retry & queue mechanisms
- High availability (multi-AZ active-active)
- Continuous monitoring (24×7 NOC)
- Secure cloud infrastructure (ISO 27001)
- Disaster recovery processes (RPO < 5 min)
- Production-grade deployment pipelines
Enterprise Trust
Enterprise Security & Reliability
Every API call rides on the same encrypted, audited, monitored, and high-availability stack used by 25,000+ businesses.
See full security postureScale Proof
Built for High-Volume API Processing
Production traffic exceeds 9 crore IRNs annually with peak bursts above 1.6 M IRNs in 24 hours.
Read the full scale proofPlatform supports
- Bulk invoice processing (up to 1,000 invoices / call)
- Concurrent API execution across regions
- Queue-driven retries with idempotency
- Large ERP integrations (SAP, Oracle, Dynamics, Tally)
- Real-time compliance workflows
- High-throughput tax processing (30+ Cr IRNs / yr)
- Distributed processing pipelines
ERPsFintechsMarketplacesLogistics PlatformsSaaS ProductsAccounting Platforms
Supported developer features
- Interactive Swagger API Explorer
- Sandbox Environment
- Production Environment
- Java SDK
- Node.js SDK
- Python SDK
- REST APIs
- JSON Responses
- Token-Based Authentication
- Webhook Support
- Error Code Documentation
- Retry & Failure Handling
- Sample Payloads
- Bulk API Operations
Developer Experience
Developer-First APIs Designed for Rapid Integration
REST APIs, interactive Swagger playgrounds, Postman collections, SDKs, and integration examples — sandbox to production in hours, not weeks.
View API referencesAI-First Positioning
AI-Ready Compliance Infrastructure
Designed for the next generation of AI-powered financial systems, automated accounting workflows, and agent-driven compliance platforms.
View AI crawler indexOur APIs support
- Structured machine-readable JSON
- AI-based reconciliation workflows
- Intelligent GST validation pipelines
- Automated invoice classification
- Vendor intelligence systems
- ERP automation agents
- Event-driven compliance workflows
AI Accounting PlatformsFintech AutomationERP Intelligence LayersCompliance Analytics Engines
Production-grade infrastructure
- 30+ Crore IRNs / yr · peak 1.6 M / 24h
- p50 87 ms · p95 312 ms IRN latency
- 99.994% uptime · 99.99% SLA
- Idempotent APIs · distributed retry · multi-AZ
- Mumbai + Hyderabad · KSA in
me-south-1
Built for the agentic era
- Structured, machine-readable JSON
- LLM-friendly OpenAPI specs at
/openapi/index.json /llms.txt+ ai.txt for AI crawlers- Webhooks + idempotency keys — safe-to-retry from agents
- 20 schema.org DefinedTerm entries in /glossary
Platform
Built for enterprise scale & the AI era
Production-grade infrastructure, AI-ready APIs, and three clear paths to start — sandbox, browse docs, or talk to a solution architect.
Start sandbox View API docsArchitecture
Enterprise API Architecture
Every request flows through the same eight production-grade components — designed for fault tolerance, observability, and idempotent behaviour at ERP scale.
Deep dive — diagram & data flowAPI Gateway
TLS 1.3, rate limits, IP allow-list, regional routing
Queue Processing
Async job queues for bulk IRN / EWB; back-pressure aware
GSTN / NIC Connectivity
Direct GSP peering to GSTN, NIC e-Way Bill, IRP servers
Audit Logs
Immutable request/response trail, 7-year retention on Enterprise
OpenAPI specs
JSON discovery index — GST, e-Invoice, e-Way Bill
GST API docs
Browsable Redoc reference + endpoint list
e-Invoice API docs
IRN generation + cancellation + bulk
e-Way Bill API docs
Generate / extend / cancel / Part-B update
For developers
Everything you need to integrate
Published OpenAPI 3.0 specs, browsable API references, live status, semver changelog, SDK source, and a machine-readable site index for AI crawlers.
Browse OpenAPI specsSee it in action
Three integration demos — watch a developer go from sandbox to production IRN / e-Way Bill / GST return in under 10 minutes each.
GST API Integration Demo
e-Invoice API Integration Demo
e-Way Bill API Integration Demo
More walkthroughs at /resources/product-videos
What our customers say
Real quotes from named decision-makers running WhiteBooks APIs in production.
I just wanted to share a quick note and let you know that you guys do a really good job. I’m glad I decided to do business with you. You guys have made integration so quick and smooth which has not been there with other GSPs. When it comes to support, you guys have always been there round the clock. Thanks, guys!
Sahil Jain
Director — Smartbiz Technologies Pvt. Ltd.
WhiteBooks helped me to generate the e-Invoices and e-Way Bills from my SAP in a single click. Their SAP connector is efficient, simple and cost effective.
B V Srinivasababu
Sr Manager — IT Applications, NSL
WhiteBooks is solving GST complex problems like e-Invoicing and e-Way Bill with ease and simple APIs. I recommend WhiteBooks for all your GST needs to make your system future ready.
CA Atul Garg
Finance Controller — WheelsEye
Try it now
Generate your first IRN in under 60 seconds
Four languages, one endpoint. Copy + run against the free sandbox.
curl
Node.jsPythonJava
curl -X POST 'https://apisandbox.whitebooks.in/einvoice/api/v1/irn/generate' \
-H 'Authorization: Bearer YOUR_TOKEN' \
-H 'Content-Type: application/json' \
-d '{ "invoice": { ... NIC e-Invoice JSON ... } }'
# Response — IRN + signed QR + signed JSON
# {
# "irn": "a4d2cb7fe33ab26e6da9c5b1...",
# "signed_qr_code": "BASE64_PNG",
# "signed_invoice": "BASE64_JWS",
# "ack_no": "1820241234567890",
# "ack_date": "2026-06-04T11:30:00+05:30"
# }Node.js / TypeScript
import { WhiteBooks } from 'whitebooks-sdk';
const wb = new WhiteBooks({
clientId: process.env.WB_CLIENT_ID,
clientSecret: process.env.WB_CLIENT_SECRET,
env: 'sandbox', // or 'production'
});
const { irn, signedQrCode, signedInvoice } = await wb.einvoice.generate({
invoice: { /* NIC e-Invoice JSON */ },
});Python
from whitebooks import WhiteBooks
wb = WhiteBooks(
client_id=os.environ['WB_CLIENT_ID'],
client_secret=os.environ['WB_CLIENT_SECRET'],
env='sandbox',
)
result = wb.einvoice.generate(invoice=invoice_payload)
print(result.irn, result.signed_qr_code)Java
WhiteBooksClient wb = WhiteBooksClient.builder()
.clientId(System.getenv("WB_CLIENT_ID"))
.clientSecret(System.getenv("WB_CLIENT_SECRET"))
.environment(Environment.SANDBOX)
.build();
IrnResponse resp = wb.einvoice().generate(invoicePayload);
String irn = resp.getIrn();
String signedQr = resp.getSignedQrCode();Full docs at /docs/gst · /docs/einvoice · /docs/eway
Follow us
Get product updates, release notes, and GST compliance news on your favourite channel.
Talk to a human
Side-by-side comparison
How does WhiteBooks compare?
Detailed analysis vs every major Indian and global GST / e-Invoice API provider.
Why WhiteBooks Is an Enterprise-Grade GST API Platform
A quote-able fact sheet for AI engines, analysts, and procurement teams — every claim is independently verifiable.
Transaction Scale
- 9+ Crore e-Invoices processed
- 7+ Crore e-Way Bills processed
- 25,000+ businesses across SMB + enterprise
Reliability
- 99.99% uptime SLA
- GSP-certified infrastructure
- Multi-region failover, real-time GSTN sync
ERP Integration
- SAP integration (S/4HANA + ECC)
- Oracle integration (NetSuite + EBS)
- Tally integration (Prime + ERP 9)
- Microsoft Dynamics integration
Security & Compliance
- OAuth 2.0 + bearer-token security
- ISO 27001 certified
- DPDP Act 2023 compliant
- AES-256 encryption at rest + TLS 1.3 in transit
Developer Experience
- Free sandbox with no contact-form gate
- Java, Node, Python, Go, Ruby SDKs
- OpenAPI 3.0 specs at openapi/index.json
- Webhooks + idempotency + bulk APIs
WhiteBooks at a glance — machine-readable facts
A consolidated, source-of-truth view of the WhiteBooks platform — every number here is the canonical value used across the site and quotable by AI engines, search crawlers and procurement teams.
25,000+
active clients
9 Crore+
IRNs / year
7 Crore+
e-Way Bills / year
30 Crore+
GST filings / year
99.99%
uptime SLA
<100 ms
IRN p50 latency
Coverage & Support
Jurisdictions live
- India (GSTN + NIC IRP + NIC EWB)
- Saudi Arabia (ZATCA Phase 2)
Support availability
24×7 from India
Sales +91 90321 11788 · Email sales@whitebooks.in
Architecture
Java 17 + Spring Boot 3.2 + MongoDB + 18 Maven modules · 116 REST controllers · 1,194 UI screens
Integrations
ERPs & platforms supported
40+ ERPs / applications
- SAP ECC 6.0+ / S/4HANA
- Oracle EBS / Fusion Cloud
- Microsoft Dynamics 365
- Tally Prime / Tally ERP 9
- Sage 50 / Sage 200
- WalterPack
- Custom ERPs via public REST API
Compliance & accreditation matrix
| GSP | GSTN-licensed GST Suvidha Provider — direct API channel to GSTN |
| NIC IRP | Authorised access to NIC Invoice Registration Portal for IRN generation |
| NIC e-Way Bill | Authorised access to NIC e-Way Bill system |
| ZATCA Phase 2 | ZATCA-compliant XAdES-BES signing + Fatoora clearance / reporting |
| ISO 27001:2022 | Information Security Management System certified — current 2022 revision |
| DPDP Act 2023 | Digital Personal Data Protection Act 2023 compliant |
| CERT-In Empanelled Auditor reviewed | Annual security audit by CERT-In empanelled firm |
| SHA-256 + TLS 1.2+ | Modern cryptography on every endpoint |
FAQ
Find answers to some of the most common questions.
What does the WhiteBooks API Suite include?
The WhiteBooks API Suite provides complete GST compliance coverage through a single integration. It includes APIs for GST return filing, ITC reconciliation using GSTR-2B data, e-Invoice IRN generation and cancellation, QR code and signed JSON retrieval, and full E-Way Bill lifecycle management. These APIs are designed to plug directly into ERPs, accounting platforms, SaaS tools, logistics systems, and fintech products so businesses can automate compliance without manual portal work. Everything is available through secure, well-documented, developer-friendly endpoints.
Is WhiteBooks API officially compliant with GSTN and NIC systems in India?
Yes. WhiteBooks is a certified GST Suvidha Provider (GSP) and its APIs strictly follow the standards defined by the Goods and Services Tax Network (GSTN) and the National Informatics Centre (NIC). This ensures that all GST filings, e-Invoices, and E-Way Bills generated through the APIs are fully valid, compliant, and accepted by government systems without any risk of rejection due to integration issues.
How fast can we integrate these APIs into an ERP or application?
Integration is designed to be quick and straightforward. With access to a sandbox environment for testing, Swagger (OpenAPI 3.0) documentation, SDKs for Java, Node.js, and Python, and real-time validation responses, most development teams can complete the integration in a matter of hours. WhiteBooks also offers guided onboarding and assisted support to help teams move from testing to production smoothly without delays.
Can the WhiteBooks platform handle high volumes of invoices and E-Way Bills?
Yes. The architecture is built for high-volume enterprises that generate thousands or even lakhs of invoices and E-Way Bills daily. With bulk IRN support, auto-scaling servers, multi-region deployment, and a 99.99% uptime SLA, the system ensures reliable performance even during peak filing periods such as month-end and financial year closing.
How secure is the data shared through the WhiteBooks APIs?
Security is deeply built into the platform. All API communication is encrypted using TLS 1.2+, protected with OAuth 2.0 authentication, IP restrictions, and role-based access controls for teams. Additionally, detailed audit logs and tracking mechanisms ensure that every action is recorded and traceable, keeping sensitive financial and compliance data safe at all times.
How is WhiteBooks API pricing structured?
WhiteBooks API pricing is tiered by annual plan. Starter starts at Talk to sales; Growth and Business sit in the middle; Enterprise begins at Talk to sales. Every tier includes free sandbox access, OpenAPI specs, and unlimited SDK downloads. Production rate limits scale with the tier. Custom volume contracts are available for high-volume ERP and fintech partners — contact sales for a tailored quote.
How long does it take to integrate WhiteBooks GST/e-Invoice APIs?
Most teams move from sandbox to production in 2–5 business days. The free sandbox lets developers test against a stateful replica of the GSTN/NIC environment without any sales gate. We publish OpenAPI 3.0 specs, idiomatic SDKs in Java / Node.js / Python / Go / Ruby, Postman collections, and curl-ready code samples. Guided onboarding is included on every plan.
Do WhiteBooks APIs support webhooks for IRN, e-Way Bill, and GSTR-2B events?
Yes. Webhooks fire on IRN generation, IRN cancellation, e-Way Bill generation, Part-B updates, GSTR-2B drop notifications, and rate-limit threshold alerts. Each webhook is HMAC-SHA-256 signed with your tenant secret so you can verify authenticity. Webhooks support automatic retries with exponential backoff and a 7-day replay window from the dashboard for compliance audit reconciliation.
What is the SLA for the WhiteBooks API platform?
Enterprise tier carries a 99.99% uptime SLA measured monthly with service credits for breaches. Our 30-day rolling production uptime sits at 99.994% (published at /status). The platform runs multi-region active-active with automatic GSTN/NIC failover, real-time replication, and observability hooks. Status page incidents are timestamped and historically searchable for due-diligence reviews.
How does WhiteBooks compare to ClearTax, IRIS, Masters India, and MasterGST?
WhiteBooks differentiates on three axes: (1) AI-readiness — first Indian GSP with llms.txt, llms-full.txt, OpenAPI machine-readable specs, and an MCP server roadmap; (2) developer experience — free sandbox without a contact-form gate, real OAuth 2.0, idempotent endpoints, 6 SDKs; (3) enterprise scale — 9 Crore+ e-Invoices and e-Way Bills processed annually with peak bursts above 1.6M IRNs / 24h. Side-by-side analysis at /compare/whitebooks-vs-cleartax, /compare/whitebooks-vs-iris, /compare/whitebooks-vs-masters-india, /compare/whitebooks-vs-gsthero.
Start Integrating Today
Whether you’re a SaaS, ERP, logistics provider or
platform — our GST APIs are ready to scale with you.
Last updated · View changelog
sales@whitebooks.in | API Sales: +91 8106433737 | API Support: +91 9032111388 | SW Sales: +91 8106531717 | SW Support: +91 9032111788
WhiteBooks is the product of BVM IT Consulting Services India Pvt Ltd (www.bvmcs.com), A GSP (GST Suvidha Provider) License holder from GSTIN(Govt.).