Unverified60% confidenceFactExact time
The authentication scheme recommended by the official MCP specification is OAuth 2.1 with PKCE.
2
Sources
60%
Confidence
Long-term
Relevance
9/27/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedVaults support both OAuth credentials and MCP authentication, and can package authorizations for services such as Notion.74% similarVerifiedMCP's permission model draws on the OAuth 2.0 authorization code flow, requiring explicit user authorization for tool invocation.73% similarPartially VerifiedMCP对外公网服务支持基于OAuth 2.1授权框架和JWT的Token认证机制72% similar
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