Interoperability between MCP and alternative tool invocation standards

Determine how to ensure interoperability between the Model Context Protocol and other tool invocation ecosystems such as OpenAI function calling and Microsoft plugins, including the design of converters or unified schemas that enable consistent governance and policy application across platforms.

Background

Enterprises often use multiple AI tool invocation standards, and the paper highlights the practical need to coordinate governance and policy mechanisms across these heterogeneous systems.

The authors suggest exploring common ontologies, converters, or unified schemas to make cross-platform policy enforcement feasible, while acknowledging that how to achieve this remains unresolved.

References

Ensuring MCP can work alongside or integrate with such alternatives is an open question.

Systematization of Knowledge: Security and Safety in the Model Context Protocol Ecosystem  (2512.08290 - Gaire et al., 9 Dec 2025) in Section 7.2 Standardization and Interoperability Challenges