Living definition
What is MCP OAuth 2.1 Authorization Profile?
Cybersecurity & Threat DefenseSecurity & Identity
- As of
- 2026-09-22
- Revision
- 2026-10-06.1
- Method
- v1.3.0
Definition
The term, in context
AI-assisted draft · approved dataset
The MCP OAuth 2.1 Authorization Profile is the authorization layer of the Model Context Protocol, defining how an MCP server presents itself as a protected resource and how a client obtains a token before calling its tools. It builds on OAuth 2.1 conventions — proof key for code exchange, metadata discovery, and audience-restricted access tokens — so that a token minted for one server cannot be replayed against another.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-09-22, verified readiness is 65 (claimed 80, reported 74, gap 15) — Strong evidence strength; current signals suggest Adopt with guardrails.
The readiness fact belongs to the canonical Readiness Verdict for MCP OAuth 2.1 Authorization Profile.
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06