
How to manage multi-user AI agent authentication and authorization in 2026 (OAuth 2.1, OIDC, and delegated access)
Multi-user AI agents need a delegated authorization stack — OAuth 2.1, OIDC, and an MCP runtime that enforces the user/agent intersection at every tool call. This guide breaks down the nine capabilities, two identities, and one strict rule that production deployments need in 2026.





















































