createIPAccessControlList
Creates an IP Access Control List. You can optionally specify an Id on this create request, if one is not provided one will be generated.
This record as markdown: /tools/io-fusionauth-mcp-api/createipaccesscontrollist.md
What createIPAccessControlList does on Fusionauth
AI agents use createIPAccessControlList 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.
Why createIPAccessControlList is rated Medium
This tool creates a new resource (IP Access Control List) which is a reversible Write operation. While IP access controls are security-sensitive infrastructure, the act of creation itself is Write rather than Execute or Destructive.
From the tool's definition Tool description states 'Creates an IP Access Control List' - the word 'Creates' indicates data is being written/created. The tool modifies security infrastructure (IP access controls) which has significant blast radius if misconfigured by an agent.
Attacks that exploit this kind of access
The rule that runs createIPAccessControlList 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 createIPAccessControlList, this is the rule to start with:
createIPAccessControlList 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Fusionauth, apply this rule, and every createIPAccessControlList call is checked against it from then on.
Questions about createIPAccessControlList
Creates an IP Access Control List. You can optionally specify an Id on this create request, if one is not provided one will be generated. 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.
Register the Fusionauth MCP server in PolicyLayer and add a rule for createIPAccessControlList: 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.
createIPAccessControlList is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the createIPAccessControlList 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 createIPAccessControlList. 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.
createIPAccessControlList 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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