# WhiteBooks GST API Suite

> The WhiteBooks GST API Suite provides REST APIs for GST return filing (GSTR-1, GSTR-3B, GSTR-9), ITC reconciliation from GSTR-2B, real-time e-Invoice IRN generation, e-Way Bill lifecycle (generate, Part-B update, cancel, extend, consolidate), GSTIN search, and KSA ZATCA e-invoicing. GSP-certified by GSTN, NIC-compliant.

URL: https://whitebooks.in/apis

## Key facts
- APIs included: GST Returns, e-Invoice IRN, e-Way Bill, KSA ZATCA, GSTIN Public Search
- SDKs: Java, Node.js, Python — Swagger (OpenAPI 3.0) documentation + Postman collection
- Sandbox: apisandbox.whitebooks.in · Production: api.whitebooks.in
- Authentication: OAuth 2.0 + client_id/client_secret + IP allow-listing
- Performance: <100 ms IRN generation · 99.99% uptime SLA · bulk IRN up to 1,000/call
- Integrations: SAP, Oracle, Microsoft Dynamics 365, Tally, Marg, Odoo, Zoho
- Pricing: Annual plans from ₹5,999 (Starter) to ₹24,999+ (Enterprise). Free sandbox.
- Documentation: View at /api/gst-api-for-developers (and parallel paths for e-Way Bill / e-Invoice)

## Contact
- Sales: +91 9032111788 · sales@whitebooks.in
- Technical support: +91 9032111388 · support@whitebooks.in
- Registered Office: 8-2-682/3/A/24, Road No 12, Banjara Hills, Hyderabad, Telangana 500034, India
- Corporate Office: Flat No: 303, Gayathri Heights, Jubilee Enclave, Hitech City, Hyderabad, Telangana 500081, India
- Parent company: WhiteBooks is the product of BVM IT Consulting Services India Pvt Ltd (www.bvmcs.com)

## Machine-readable resources
- Site-wide index: https://whitebooks.in/llms.txt
- Full content: https://whitebooks.in/llms-full.txt
- AI crawler policy: https://whitebooks.in/.well-known/ai.txt
- Sitemap: https://whitebooks.in/sitemap-index.xml
- Robots: https://whitebooks.in/robots.txt