deleteUserTwoFactorWithId
Disable two-factor authentication for a user using a JSON body rather than URL parameters. OR Disable two-factor authentication for a user.
This record as markdown: /tools/io-fusionauth-mcp-api/deleteusertwofactorwithid.md
What deleteUserTwoFactorWithId does on Fusionauth
AI agents call deleteUserTwoFactorWithId to permanently remove resources in Fusionauth, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why deleteUserTwoFactorWithId is rated Critical
Disabling two-factor authentication is a security-critical, irreversible action that removes an authentication safeguard. This weakens the user's account security posture and cannot simply be undone (re-enrollment would be required). Misuse by an AI agent could expose accounts to takeover, making this high severity.
From the tool's definition 'Disable two-factor authentication for a user' — permanently removes 2FA security configuration for a user account
Attacks that exploit this kind of access
The rule that runs deleteUserTwoFactorWithId safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Fusionauth, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For deleteUserTwoFactorWithId, this is the rule to start with:
deleteUserTwoFactorWithId is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Fusionauth, apply this rule, and every deleteUserTwoFactorWithId call is checked against it from then on.
Questions about deleteUserTwoFactorWithId
Disable two-factor authentication for a user using a JSON body rather than URL parameters. OR Disable two-factor authentication for a user. It is categorised as a Destructive tool in the Fusionauth MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Fusionauth MCP server in PolicyLayer and add a rule for deleteUserTwoFactorWithId: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Fusionauth. Nothing to install.
deleteUserTwoFactorWithId is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the deleteUserTwoFactorWithId rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for deleteUserTwoFactorWithId. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
deleteUserTwoFactorWithId is provided by the Fusionauth MCP server (@fusionauth/mcp-api). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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