modelcontextprotocol.ioMCP Server22/100 via “resource-data-source-abstraction”
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Unique: Treats external data sources as first-class 'resources' with discoverable metadata and standardized access patterns, rather than embedding data access logic directly in tool invocations. Enables servers to expose heterogeneous data sources (databases, files, APIs, SaaS platforms) through a unified resource interface that clients can query without understanding each source's native API.
vs others: More flexible than RAG systems because it supports live data access and mutations, not just static embeddings; more standardized than custom API wrappers because it defines a common resource model that works across different data source types.