← Back to glossaryGlossary

MCP (Model-Context-Protocol) Authentication

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

MCP authentication is the process of verifying the identity of an MCP client, server, user, or delegated agent before any tools, resources, or prompts are exchanged. It usually relies on standard identity systems such as OAuth or OIDC rather than shared static secrets.

§01 / QUESTIONSterm: MCP (Model-Context-Protocol) Authentication
Questions

Common questions.

What is MCP (Model-Context-Protocol) Authentication?

MCP authentication is the process of verifying the identity of an MCP client, server, user, or delegated agent before any tools, resources, or prompts are exchanged.

How does MCP (Model-Context-Protocol) Authentication work?

It usually relies on standard identity systems such as OAuth or OIDC rather than shared static secrets.

Which terms are related to MCP (Model-Context-Protocol) Authentication?

Closely related concepts include MCP Authorization, MCP Server Discovery, MCP Server, Agent Capability. Each is defined in the Prefactor glossary.

§02 / RELATEDnext: where this fits
Keep reading

Where this fits.

See how every agent performs, and make it better

Prefactor helps teams observe, evaluate, and improve their AI agents in production, across every framework and provider.