updateEntityTypeWithId

Updates the Entity Type with the given Id.

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/updateentitytypewithid.md

WHAT IT DOES

What updateEntityTypeWithId does on Fusionauth

AI agents use updateEntityTypeWithId 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 updateEntityTypeWithId is rated Medium

This tool creates or modifies data reversibly by updating an Entity Type configuration. While the change is made to identity/security infrastructure (raising severity to high due to potential downstream impact on authorization or entity relationships), the operation itself is reversible—Entity Type changes can be undone via subsequent updates.

From the tool's definition Tool name contains 'update' and description states 'Updates the Entity Type with the given Id', indicating modification of existing data.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

updateEntityTypeWithId Rate-limited

updateEntityTypeWithId 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": {
    "updateEntityTypeWithId": {
      "limits": [
        {
          "counter": "updateentitytypewithid_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 updateEntityTypeWithId call is checked against it from then on.

FAQ

Questions about updateEntityTypeWithId

What does the updateEntityTypeWithId tool do? +

Updates the Entity Type with the given Id. 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 updateEntityTypeWithId? +

Register the Fusionauth MCP server in PolicyLayer and add a rule for updateEntityTypeWithId: 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 updateEntityTypeWithId? +

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

Can I rate-limit updateEntityTypeWithId? +

Yes. Add a rate_limit block to the updateEntityTypeWithId 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 updateEntityTypeWithId completely? +

Set action: deny in the PolicyLayer policy for updateEntityTypeWithId. 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 updateEntityTypeWithId? +

updateEntityTypeWithId 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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