MCP Resource
Data exposed by an MCP server for a client or model to use as context, identified by a URI.
Plain English
It is a file, record, schema, or app-specific object the AI host can intentionally add to context.
Example
A database MCP server exposes a schema resource so an agent can understand table names before writing a query.
Why it matters
Resources separate contextual data from executable tools, which helps clients control what the model can see.