list_monitors
List and search Monitors from OneUptime with optional filtering, pagination, and sorting. Returns an array of Monitor objects plus the total matching count.
This record as markdown: /tools/com-oneuptime-mcp/list-monitors.md
What list_monitors does on OneUptime
AI agents call list_monitors to retrieve information from OneUptime without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
skip | number | — | Number of records to skip for pagination. Default: 0. Example: skip=10 to start from the 11th record. |
sort | object | — | Sort order for results. Use "ASC" for ascending or "DESC" for descending. Example: {"createdAt": "DESC"} to sort by newest first. |
limit | number | — | Maximum number of records to return. Default: 10, Maximum: 100. |
query | object | — | Filter criteria for Monitors. Each field accepts a direct value (exact match) or an operator object {"_type": "<Operator>", "value": ...}. Operators: EqualTo, N |
select | array | — | Optional: field names to return for each Monitor (e.g. ["_id", "name"]). Omit to get all readable fields. Large fields excluded by default (request explicitly i |
Parameters from the server's own tool schema.
Why list_monitors is rated Low
Even though list_monitors only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsHigh parameter count (100 properties)
Attacks that exploit this kind of access
The rule that runs list_monitors 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 list_monitors, this is the rule to start with:
list_monitors is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect OneUptime, apply this rule, and every list_monitors call is checked against it from then on.
Questions about list_monitors
List and search Monitors from OneUptime with optional filtering, pagination, and sorting. Returns an array of Monitor objects plus the total matching count. It is categorised as a Read tool in the OneUptime MCP Server, which means it retrieves data without modifying state.
list_monitors accepts 5 parameters: skip, sort, limit, query, select. The full parameter table on this page comes from the server's own tool schema.
Register the OneUptime MCP server in PolicyLayer and add a rule for list_monitors: 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.
list_monitors is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_monitors 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 list_monitors. 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.
list_monitors 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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