# `AttestoMCP.Anubis.SessionOwnerMismatchError`
[🔗](https://github.com/XukuLLC/attesto_mcp/blob/v2.2.3/lib/attesto_mcp/anubis.ex#L52)

Raised when an authenticated caller addresses another identity's MCP session.

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*Consult [api-reference.md](api-reference.md) for complete listing*