generateTwoFactorRecoveryCodesWithId

Generate two-factor recovery codes for a user. Generating two-factor recovery codes will invalidate any existing recovery codes.

SERVERFusionauth SOURCE@fusionauth/mcp-api

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-fusionauth-mcp-api/generatetwofactorrecoverycodeswithid.md

WHAT IT DOES

What generateTwoFactorRecoveryCodesWithId does on Fusionauth

AI agents use generateTwoFactorRecoveryCodesWithId to create or update resources in Fusionauth, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Fusionauth environment.

RISK

Why generateTwoFactorRecoveryCodesWithId is rated Medium

This tool creates new security credentials (recovery codes) and invalidates existing ones. While it modifies user data, it is reversible (new codes can be generated again if needed), making it Write rather than Destructive. The high severity reflects that misuse could lock a user out of their account or compromise their 2FA security by forcing generation of codes that only the attacker knows.

From the tool's definition Tool description states "Generating two-factor recovery codes will invalidate any existing recovery codes." This modifies user security credentials by replacing old codes with new ones.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs generateTwoFactorRecoveryCodesWithId 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 generateTwoFactorRecoveryCodesWithId, this is the rule to start with:

generateTwoFactorRecoveryCodesWithId Rate-limited

generateTwoFactorRecoveryCodesWithId stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "generateTwoFactorRecoveryCodesWithId": {
      "limits": [
        {
          "counter": "generatetwofactorrecoverycodeswithid_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Fusionauth, apply this rule, and every generateTwoFactorRecoveryCodesWithId call is checked against it from then on.

FAQ

Questions about generateTwoFactorRecoveryCodesWithId

What does the generateTwoFactorRecoveryCodesWithId tool do? +

Generate two-factor recovery codes for a user. Generating two-factor recovery codes will invalidate any existing recovery codes. It is categorised as a Write tool in the Fusionauth MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on generateTwoFactorRecoveryCodesWithId? +

Register the Fusionauth MCP server in PolicyLayer and add a rule for generateTwoFactorRecoveryCodesWithId: 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.

What risk level is generateTwoFactorRecoveryCodesWithId? +

generateTwoFactorRecoveryCodesWithId is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit generateTwoFactorRecoveryCodesWithId? +

Yes. Add a rate_limit block to the generateTwoFactorRecoveryCodesWithId 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.

How do I block generateTwoFactorRecoveryCodesWithId completely? +

Set action: deny in the PolicyLayer policy for generateTwoFactorRecoveryCodesWithId. 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.

What MCP server provides generateTwoFactorRecoveryCodesWithId? +

generateTwoFactorRecoveryCodesWithId 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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