Postmessagetransport Abstraction For Json Rpc 2 0 Messaging

via “postmessagetransport abstraction for json-rpc 2.0 messaging”

Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers

Unique: Provides a reusable JSON-RPC 2.0 transport abstraction over postMessage with automatic request-response correlation and timeout handling, rather than requiring developers to implement these patterns manually. Validates messages against the JSON-RPC 2.0 spec to catch protocol errors early.

vs others: More reliable than raw postMessage usage because it handles request-response correlation, timeouts, and error handling automatically. More standardized than custom transport implementations because it strictly follows JSON-RPC 2.0 specification.