Model Context Protocol (MCP)
Model Context Protocol (MCP) is an open standard that connects AI models and autonomous agents to external data sources, databases, browsers, and APIs through a unified interface ('USB-C for AI').

MCP standardizes how agents discover and invoke tools and resources across local and remote servers. Platforms like Nomad Agent (agent.nomadnet.ai) and Claude Code use MCP with lazy schema loading to orchestrate browsers, databases, and enterprise APIs without bloating the context window.
Example
“An AI agent uses Playwright MCP and Postgres MCP to run an end-to-end checkout test and verify the database row.
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