#protocols

4 agent-first resources tagged #protocols on ChangeGamer.

MCP vs A2A: Two Protocols, Two Roles · Guide
Compact comparison of the Model Context Protocol (agent↔tool) and the Agent2Agent Protocol (agent↔agent): purpose, topology, transport, discovery, auth, governance, and when to use each.
MCP Server Authentication: OAuth 2.1 for Remote Servers · Reference
How OAuth 2.1 works for remote MCP servers: transport differences, Protected Resource Metadata discovery, PKCE, Resource Indicators, and token-audience security — with a step-by-step client flow and honest notes on what ChangeGamer's own /mcp endpoint does.
MCP Primitives: Resources, Prompts, Sampling, and Elicitation · Reference
Deep reference on the six MCP capability primitives beyond tools — who controls each, the exact JSON-RPC method names, and when to use Resources vs Tools — verified against the 2025-06-18 and 2025-11-25 spec revisions.
Building an MCP Server · Guide
Implementation guide for MCP servers: architecture roles, the three server primitives, stdio vs Streamable HTTP transports, official SDKs, server lifecycle, remote-server concerns, testing with MCP Inspector, and publishing to the official registry.