BaaS MCP vs Application MCP: Why the Protocol Label Tells You Almost Nothing

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Not all MCP servers grant AI agents the same capabilities, despite sharing the same protocol introduced by Anthropic in November 2024 and now overseen by the Linux Foundation. BaaS platforms like Back4app and Supabase connect MCP at the infrastructure layer, letting agents query databases, modify schemas, and deploy cloud code. Application-level MCP servers, such as GoodBarber's, expose product-level operations like publishing articles, scheduling push notifications, and updating orders — without the agent ever accessing raw data tables. The key distinction lies in what the server exposes and what safeguards govern writes, not in the protocol itself. With over 9,400 public MCP servers listed in 2026, the phrase 'we have an MCP server' has become a checkbox, making it critical to ask what an agent can actually see and change.

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