Best of mcp — December 2025

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   Article

   portkey·17w

   Understanding MCP Authorization

   MCP (Model Context Protocol) requires authorization controls as it moves from local experimentation to production deployments. The protocol enables AI models to interact with external tools and APIs dynamically, but without authorization, every connected client can access all exposed tools. Authorization in MCP works through server-side enforcement at request time, not connection time, using patterns like token-based authorization, scoped capability access, and role-based policies. Best practices include applying least privilege, using short-lived scoped tokens, authorizing every tool call individually, and making all access auditable. Strong authorization boundaries are essential for safely deploying MCP in shared environments and production systems.

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2. 2
   Article

   Daily Dose of Data Science | Avi Chawla | Substack·18w

   Finally, MCP Servers Can Deliver UI-rich Experiences!

   MCP servers traditionally only return text/JSON responses without UI capabilities. The open-source mcp-use framework solves this by letting developers create React components that automatically register as MCP tools and render as interactive widgets in ChatGPT. Components placed in a resources/ folder become callable tools with zero boilerplate—no duplicate schemas or manual registration needed. The framework supports the full React ecosystem, hot reloading, and automatic theme syncing with ChatGPT's light/dark mode. A practical example demonstrates building an interactive stock chart widget that displays closing prices over time.

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3. 3
   Article

   Vercel·17w

   Build smarter workflows with Notion and v0

   v0 now integrates with Notion through MCP, allowing teams to build dashboards, prototypes, and tools directly from their Notion databases and documents. The integration supports both read and write access, enabling v0 to generate content based on existing Notion data and write results back to the workspace. Teams can create event dashboards, product prototypes from PRDs, content workflows, and project summaries without switching between tools. The v0 team uses this integration to manage their event tracking, consolidating what was previously a fragmented multi-tool process into a single prompt-driven workflow.

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