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MCP Resource URI

Reviewed 19 July 2026 Canonical definition Part of: MCP & Agent Protocol Terms →

An MCP resource URI is a stable identifier for a data resource, such as a document, database record, or API response, that an MCP server exposes for agents to read. Resource URIs allow agents to reference specific pieces of context by address rather than embedding full content in every request.

§01 / QUESTIONSterm: MCP Resource URI
Questions

Common questions.

What is MCP Resource URI?

An MCP resource URI is a stable identifier for a data resource, such as a document, database record, or API response, that an MCP server exposes for agents to read.

Why does MCP Resource URI matter for AI agents?

Resource URIs allow agents to reference specific pieces of context by address rather than embedding full content in every request.

Which terms are related to MCP Resource URI?

Closely related concepts include MCP Resource, Context Window Poisoning, MCP Prompt Template, MCP Sampling. Each is defined in the Prefactor glossary.

§02 / RELATEDnext: where this fits
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Where this fits.

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