create_monitor

SERVEROneUptime SOURCEhttps://oneuptime.com/mcp

Medium RISK CLASS

Category Write

Parameters 122 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-oneuptime-mcp/create-monitor.md

WHAT IT DOES

What create_monitor does on OneUptime

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

Parameter	Type	Required	Description
`name`	string	Yes	Any friendly name for this monitor.
`hosts`	array	—	Hosts this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.
`labels`	array	—	Relation to Labels Array where this object is categorized in.
`services`	array	—	Services this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.
`iotFleets`	array	—	IoT fleets this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.
`projectId`	string	—	ID of your OneUptime Project in which this object belongs.
`isArchived`	boolean	—	Archived monitors are hidden from monitor lists and status pages, are not checked, and open no incidents or alerts. Unarchiving resumes monitoring.
`description`	string	—	Friendly description that will help you remember.
`dockerHosts`	array	—	Docker hosts this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.
`monitorType`	string	Yes	What is the type of this monitor? Website? API? etc.
`podmanHosts`	array	—	Podman hosts this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.
`cephClusters`	array	—	Ceph clusters this monitor watches. Incidents and alerts it creates are linked to them, so OneUptime AI can investigate and fix them there.

Parameters from the server's own tool schema.

RISK

Why create_monitor is rated Medium

An AI agent can call create_monitor faster than any human can review: one bad instruction and it creates or modifies resources in OneUptime by the hundred, each call as confident as the last.

Risk signalsHigh parameter count (50 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_monitor safely

PolicyLayer is an MCP gateway: it sits between your AI agents and OneUptime, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_monitor, this is the rule to start with:

create_monitor Rate-limited

create_monitor 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": {
    "create_monitor": {
      "limits": [
        {
          "counter": "create_monitor_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 OneUptime, apply this rule, and every create_monitor call is checked against it from then on.

FAQ

Questions about create_monitor

What does the create_monitor tool do? +

Create a new Monitor in OneUptime. Returns the created Monitor object with its ID. Use this to add new Monitors to your project. Note: projectId is inferred from your API key — you do not need to provide it. It is categorised as a Write tool in the OneUptime MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_monitor accept? +

create_monitor accepts 12 parameters: name, hosts, labels, services, iotFleets, projectId, isArchived, description, dockerHosts, monitorType, podmanHosts, cephClusters. Required: name, monitorType. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_monitor? +

Register the OneUptime MCP server in PolicyLayer and add a rule for create_monitor: 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 OneUptime. Nothing to install.

What risk level is create_monitor? +

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

Can I rate-limit create_monitor? +

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

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

create_monitor is provided by the OneUptime MCP server (https://oneuptime.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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