openaq-list-parameters

List the parameters (pollutants and meteorological variables)

SERVERMeta Data Mcp SOURCEpypi:meta-data-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/openaq-list-parameters.md

WHAT IT DOES

What openaq-list-parameters does on Meta Data Mcp

AI agents call openaq-list-parameters to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why openaq-list-parameters is rated Low

This tool retrieves metadata about available parameters from the OpenAQ (Open Air Quality) API. It performs a simple enumeration/listing of predefined data attributes with no ability to modify, delete, or execute external operations. The blast radius of misuse is minimal—an AI agent could at worst enumerate the API's schema repeatedly, which poses no security risk to data integrity or system stability.

From the tool's definition Tool name 'openaq-list-parameters' and description 'List the parameters (pollutants and meteorological variables)' indicate a retrieval operation with no modification or side effects. The verb 'list' is a classic read-only query operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs openaq-list-parameters safely

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

openaq-list-parameters Allowed

openaq-list-parameters is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "openaq-list-parameters": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every openaq-list-parameters call is checked against it from then on.

FAQ

Questions about openaq-list-parameters

What does the openaq-list-parameters tool do? +

List the parameters (pollutants and meteorological variables). It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on openaq-list-parameters? +

Register the Meta Data MCP server in PolicyLayer and add a rule for openaq-list-parameters: 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 Meta Data Mcp. Nothing to install.

What risk level is openaq-list-parameters? +

openaq-list-parameters is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit openaq-list-parameters? +

Yes. Add a rate_limit block to the openaq-list-parameters 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 openaq-list-parameters completely? +

Set action: deny in the PolicyLayer policy for openaq-list-parameters. 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 openaq-list-parameters? +

openaq-list-parameters is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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