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mcp

Explore posts tagged with "mcp" below.

AI Agent Protocol Layer: MCP, A2A, AG-UI, and Function Calling

Understanding the protocol layer that connects agents to tools, other agents, and frontends — MCP, A2A, AG-UI, and native Function Calling compared.

AI Agent MCP A2A AG-UI Function Calling Protocol

March 5, 2026

Assert Runner Emits Error Output on MCP Failures in OpenAI Agents SDK

Added runner-level regression tests to verify MCP tool failures produce proper tool_call_output_item events in both sync and streaming paths.

OpenAI Agents SDK MCP Testing Python

February 28, 2026

How I Fixed a Core MCP Transport Compatibility Bug in LangChain4j

A deep technical breakdown of merged PR #4584 in langchain4j: protocol negotiation failures, transport-level design tradeoffs, and a production-safe fix with regression tests.

LangChain4j MCP Java HTTP Open Source

February 25, 2026