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Abdur R Sayeed (@Abdur_sayeed) on X
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Abdur R Sayeed (@Abdur_sayeed) on X

Post on Anthropic's auto-connect for plugins on Claude Team and Enterprise plans. Claude issues a signed identity assertion (beta), which the connector's authorization server validates and exchanges for an access token, so no identity provider or SSO is needed. Per Anthropic's docs, Claude checks only organization membership, not SSO or MFA, and matches users by email. Issued tokens stay valid after a user leaves, so short lifetimes (one hour is the docs' example) limit residual access.

TL;DR Explains Claude-issued identity assertions for auto-connecting MCP plugins and the access-token lifetime and no-MFA caveats for server builders.
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Organisations named here

  • Anthropic

Technologies named here

  • MCP server
  • Model Context Protocol
  • Claude
  • OAuth
  • Claude Enterprise
  • Claude-issued auth
  • Claude plugins
  • Claude Team

Techniques named here

  • OAuth
  • Signed identity assertion exchange for access token

Concepts named here

  • Access token lifetime
  • Boris Cherny
  • Enterprise-managed authentication
  • Organization membership check