White-Label GSP Gateway for ERPs — SAP / Oracle / Dynamics / Tally-Ready, OEM Pricing, Branded for Your Customers
Used by major ERP vendors as the underlying GSP gateway. Co-branded UI permitted. OEM volume tiers.
Talk to BD about OEM tiers — sample co-branded landing page in 24 hours
The problem
For Product / BD lead at an ERP / accounting / billing software vendor. Your customers ask for GST + e-Invoice + e-Way Bill compliance. You don't want to become a GSP. You want a white-label GSP API to embed.
How WhiteBooks solves it
- Full WhiteBooks API surface (GST + e-Invoice + e-Way Bill + KSA) consumable as a private-label gateway.
- Pre-built ERP connectors: SAP ECC 6.0+ / S/4HANA, Oracle EBS / Fusion, Microsoft Dynamics 365, Tally Prime / ERP 9.
- White-label OAuth provider option: customer-facing OAuth flows can carry your ERP brand instead of WhiteBooks.
- OEM pricing tiers (volume-based, not per-seat) — built for ERP vendors who resell at scale.
Key APIs
| Tool / Endpoint | What it does | Path |
|---|---|---|
Full GST + e-Invoice + e-Way Bill + KSA surface | Everything in the catalogue | /openapi/index.json |
SAP / Oracle / Dynamics / Tally connectors | Native ERP integration | /connectors/ |
oauth.provision_oem_tenant | White-label OAuth flow | /api/v1/oauth/oem |
oem.billing_aggregate | Volume billing per ERP vendor | /api/v1/oem/billing |
Compliance angle
GSP license remains with WhiteBooks — your vendor relationship does not need its own. Audit logs flow back to the ERP for the customer's 7-year records. OEM agreement governs SLA, data-residency, and indemnification.
Live numbers
- Throughput: 1,000 invoices / EWBs per single API call (bulk mode).
- Latency: p50 87 ms IRN, p95 312 ms — live at whitebooks.in/status.
- Uptime: 99.994% rolling 30-day; 99.99% SLA with credits on Enterprise.
- Region: Mumbai + Hyderabad active-active; KSA in
me-south-1.
Sample architecture
Sample customer pattern
A leading ERP vendor with 40,000+ customers in India OEMs the WhiteBooks gateway. The ERP's customer-facing UI carries the ERP brand; under the hood every IRN, EWB, and GSTR call goes through WhiteBooks. The ERP vendor settles aggregated monthly with WhiteBooks; the customer never sees us.
Frequently asked questions
Do we need our own GSP license?
No. WhiteBooks is the licensed GSP; you consume our API as an OEM. The licensing, certification, GSTN connectivity, and audit overhead stay on our side. Your customers see your ERP brand — we operate as the private-label gateway.
Which ERPs already have first-party connectors?
SAP ECC 6.0+, SAP S/4HANA, Oracle EBS, Oracle Fusion Cloud, Microsoft Dynamics 365 Business Central / Finance & Operations, Tally Prime, Tally.ERP 9. New connectors built on request — typical timeline is 4-6 weeks for a major ERP.
How does OEM pricing work?
Volume-based, not per-seat. Tiers start at 100K IRN/month with steep discounts at 1M and 10M. You get a single monthly invoice across all your ERP customers; you bill your customers at your own published rate.
Can the customer-facing UI carry our ERP brand instead of WhiteBooks?
Yes — white-label is part of the OEM package. OAuth flows, customer-facing PDFs, IRN public-display fields, and the API explorer can all carry your brand. WhiteBooks branding only appears in the audit log (for regulator inspection).
What's the SLA for an OEM relationship?
99.99% uptime with credits. Plus a contractual data-residency commitment (Mumbai + Hyderabad for India, me-south-1 for KSA). OEM contracts include named-engineer support and a quarterly business review.
Get started
Related use cases: Logistics · Retail · Manufacturing · Fintech · Pharma · E-Commerce · SaaS · CA Firms · ERP Providers
Reference: All APIs hub · /docs/gst · /docs/einvoice · /docs/eway · Pricing · Architecture · Status · Changelog