mcp-server-architecture-patterns-for-llm-integrated-applications-ec57a338·1 events·first seen Aliases: MCP Server Architecture Patterns for LLM-Integrated Applications
An industry experience paper catalogues five recurring architectural patterns for Model Context Protocol (MCP) servers—Resource Gateway, Tool Orchestrator, Stateful Session Server, Proxy Aggregator, and Domain-Specific Adapter—drawn from 15 servers including five production deployments on the ANSYR voice AI platform and ten from the official MCP registry. The paper also documents four anti-patterns and cross-cutting concerns around authentication, versioning, and observability. A quantitative evaluation includes inter-rater reliability (Cohen's kappa = 0.76 on 54 held-out servers), transport overhead measurements, and a tool-count study showing tool-selection accuracy drops below 90% between 10–15 tools for Claude Haiku 4.5 and between 20–30 tools for Claude Sonnet 4. Code, corpus, and prompts are released as a replication package.