Compare JSON-RPC vs REST to understand their differences, strengths, and when developers should use each API design approach.

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A comparison of JSON-RPC and REST, clarifying that JSON-RPC is a protocol organized around actions while REST is an architectural philosophy centered on resources. Key differences include transport agnosticism (JSON-RPC) vs. HTTP-native caching and discoverability (REST). REST dominates at 92% of APIs in 2025 and suits public-facing, resource-oriented APIs, while JSON-RPC fits complex batch operations and action-heavy use cases like MCP and language server protocols. The future likely involves both coexisting rather than one replacing the other.

JSON-RPC vs. REST: When Should API Developers Use Each?

Understanding the Differences Between JSON-RPC and REST