9 MCP Plugins for Database, Browser, and CI/CD Access

DigitalApplied's 2026 MCP adoption report highlights the growth and utility of Model Context Protocol (MCP) plugins, with 9,652 published server records as of May 24, 2026, connecting coding agents to databases, browsers, and CI/CD pipelines. The guide evaluates nine production-grade MCP plugins based on adoption, maintenance, and infrastructure exposure, providing insights into each plugin's best use cases, installation instructions, and limitations. Key plugins include the Postgres MCP Pro for database tuning, Chrome DevTools MCP for live browser debugging, and the GitHub MCP Server for CI/CD integration, emphasizing the importance of OAuth token scoping for security. The evaluation criteria focus on maintenance, GitHub adoption, tool breadth, authentication support, transport options, and installation ease. The analysis suggests choosing plugins based on the specific systems agents interact with, advocating for strict scoping and short-lived credentials to ensure safe production connections.

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