From Legacy SOAP to Modern gRPC: Migrating Enterprise KYC

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Legacy SOAP-based KYC and AML systems can create performance, scalability, developer-experience, and real-time monitoring limitations because of XML messaging, request-response patterns, and complex tooling. The passage presents gRPC, which uses HTTP/2 and Protocol Buffers, as a faster and more efficient alternative that supports smaller payloads, concurrent requests, strongly typed service contracts, multi-language interoperability, and bidirectional streaming for fraud monitoring and identity workflows. It recommends a phased migration strategy involving assessment of existing SOAP services, design and parallel testing of gRPC services, use of adapters during transition, and gradual traffic rollout with monitoring. Didit is presented as an AI-native, modular identity-verification platform with gRPC-compatible APIs, document and biometric verification, AML monitoring, developer tools, compliance certifications, and a free KYC tier intended to help organizations modernize their identity infrastructure.

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