Grant Thornton

Customer story

Grant Thornton

Consulting / Audit · Multi-client audit engagements

The implementation

Grant Thornton runs internal audit + tax advisory gstr-2b reconciliation on the WhiteBooks API platform. The integration was deployed in production via the standard GST API, e-Invoice API, and e-Way Bill API endpoints — same endpoints documented in the public OpenAPI specs.

Why WhiteBooks

Platform SLA — applies to every customer

Multi-client audit engagements
Grant Thornton workload
99.99%
Uptime SLA (all customers)
< 350ms
p95 latency (all customers)

Other customer stories

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Build on the same platform

The WhiteBooks API platform is open to all enterprise teams. Same APIs Grant Thornton uses — same SLA, same SDKs, same pricing tiers.

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