weather.air-quality

Current air quality for any coordinate worldwide: US AQI (+ category) and European AQI, plus PM2.5, PM10, ozone, NO2, SO2, CO concentrations. Source: Open-Meteo/CAMS (keyless).

SERVERMcp SOURCE@2sio/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-2s-io-mcp/weather.air-quality.md

WHAT IT DOES

What weather.air-quality does on Mcp

AI agents call weather.air-quality to retrieve information from 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 weather.air-quality is rated Low

This tool queries and returns air quality data from the Open-Meteo/CAMS service based on geographic coordinates. It performs a pure read operation with no capability to modify state, execute code, destroy data, or commit financial transactions. The pay-per-call USDC settlement is a billing mechanism, not a capability of the tool itself.

From the tool's definition Tool description states it provides 'Current air quality for any coordinate worldwide' with specific metrics (AQI, PM2.5, PM10, ozone, NO2, SO2, CO concentrations).

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs weather.air-quality safely

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

weather.air-quality Allowed

weather.air-quality 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": {
    "weather.air-quality": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every weather.air-quality call is checked against it from then on.

FAQ

Questions about weather.air-quality

What does the weather.air-quality tool do? +

Current air quality for any coordinate worldwide: US AQI (+ category) and European AQI, plus PM2.5, PM10, ozone, NO2, SO2, CO concentrations. Source: Open-Meteo/CAMS (keyless). It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on weather.air-quality? +

Register the MCP server in PolicyLayer and add a rule for weather.air-quality: 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 Mcp. Nothing to install.

What risk level is weather.air-quality? +

weather.air-quality is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit weather.air-quality? +

Yes. Add a rate_limit block to the weather.air-quality 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 weather.air-quality completely? +

Set action: deny in the PolicyLayer policy for weather.air-quality. 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 weather.air-quality? +

weather.air-quality is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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