updateOAuthScopeWithId

Updates the OAuth scope with the given Id for the application.

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/updateoauthscopewithid.md

WHAT IT DOES

What updateOAuthScopeWithId does on Fusionauth

AI agents use updateOAuthScopeWithId 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 updateOAuthScopeWithId is rated Medium

This tool modifies OAuth scope settings, which are critical security configurations controlling what permissions applications can request. While reversible (as opposed to deletion), misconfiguration could grant excessive permissions or break application authentication.

From the tool's definition Tool name contains 'update' and description states 'Updates the OAuth scope' — a modification operation that changes OAuth configuration for an application.

Attacks that exploit this kind of access

RECOMMENDED RULE

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

updateOAuthScopeWithId Rate-limited

updateOAuthScopeWithId 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": {
    "updateOAuthScopeWithId": {
      "limits": [
        {
          "counter": "updateoauthscopewithid_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 updateOAuthScopeWithId call is checked against it from then on.

FAQ

Questions about updateOAuthScopeWithId

What does the updateOAuthScopeWithId tool do? +

Updates the OAuth scope with the given Id for the application. 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 updateOAuthScopeWithId? +

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

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

Can I rate-limit updateOAuthScopeWithId? +

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

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

updateOAuthScopeWithId 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.

KEEP EXPLORING

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