Interoperability
1. Introduction
Civil registration systems do not operate in isolation. They exchange information with other government systems to support public services, improve data quality and reduce duplicate data entry. OpenCRVS has been architected from its inception to interoperate with other e-Government systems in a standardised, safe and secure manner.
This page provides a high-level overview of interoperability in OpenCRVS and how it relates to solution architecture. The detailed technical guidance for implementing integrations is provided in the integration architecture and configuration documentation.
Where this sits: Interoperability requirements are identified during Design & Specification as part of the solution architecture and are implemented during Configuration and Deployment.
2. Why interoperability matters
A civil registration system forms part of a wider government digital ecosystem. Depending on national requirements, OpenCRVS may exchange information with systems such as:
National identity systems
Social protection systems
Population registers
Health information systems
Immigration systems
Statistics platforms
Notification services
Digital identity and authentication providers
Other government & private sector applications
Interoperability enables information to be shared electronically, reducing manual processes, improving data accuracy and allowing government services to operate more efficiently.
Every integration should have a clearly defined business purpose and should exchange only the information required to support that purpose. Integration should not be "gamified" at the expense of privacy and consent.
3. Interoperability and solution architecture
Before any integrations are developed, the project's Solution Architecture defines how OpenCRVS fits within the wider government technology landscape.
The solution architecture helps identify:
which external systems need to communicate with OpenCRVS
the direction in which information flows
the business events that trigger data exchange
the security, privacy and governance requirements for each integration
the responsibilities of each participating system
Developing the solution architecture early ensures that interoperability requirements are agreed before implementation begins and that all stakeholders understand how OpenCRVS will interact with the surrounding digital ecosystem.
4. How OpenCRVS supports interoperability
OpenCRVS provides a flexible interoperability framework that allows external systems to exchange information securely without modifying the core platform.
At a high level, interoperability is achieved through two complementary mechanisms:
Application Programming Interfaces (APIs) — OpenCRVS provides a range of APIs designed for different consumers and business use cases. These APIs allow authorised systems to securely retrieve information from OpenCRVS, submit information to OpenCRVS or perform approved business operations.
Action Triggers — OpenCRVS can automatically notify external systems when defined business events occur, such as the registration or certification of a vital event. This enables other government systems to respond automatically without requiring manual intervention.
Together, APIs and Action Triggers enable OpenCRVS to participate in event-driven government architectures while maintaining clear security boundaries and auditability.
5. Designing interoperable solutions
Interoperability should always be driven by business requirements rather than technology.
When planning integrations, implementation teams should consider:
the business outcome the integration is intended to achieve
which system owns each item of information
when information should be exchanged
what level of security, authentication and authorisation is required
how failures, retries and audit trails will be managed
These decisions are captured within the solution architecture before technical implementation begins.
6. Resources and support
For further guidance, see:
Solution Architecture – understanding how OpenCRVS fits within the wider government ecosystem.
Integration Architecture – defines how OpenCRVS connects securely with a country's wider digital ecosystem, enabling it to exchange information with external systems while remaining agnostic.
Integration Configuration – technical guidance on configuring event-driven integrations with external systems.
ID Integration & MOSIP - Integrating OpenCRVS with a National ID system creates a trusted foundation for legal identity, ensuring that vital events automatically support accurate and secure identity management throughout life.
These guides describe how to implement secure integrations using these capabilities while following OpenCRVS architectural principles.
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