MCP Deep Dive: How Model Context Protocol Eliminates Integration Glue Code

Model Context Protocol (MCP) replaces N×M bespoke integrations with N agents plus M servers, reducing 14 point-to-point clients to 3 MCP servers. The Mattrx SaaS system cut ~9,000 lines of glue code (40% reduction) and dropped agent tool-call error rate from 6% to 0.8%. New capability onboarding time fell from ~3 days to ~2 hours, with ~85,000 daily MCP tool calls governed by a single security boundary.