Get air quality monitors at a specific monitoring site. Returns detailed information about monitors including location, operational dates, and measurement parameters. Parameters: - param: 5-digit AQS parameter code for the pollutant. Common codes: - 44201: Ozone (O3) - 88101: PM2.5 (Fine Particul...
AI agents call aqs_monitors_by_site to retrieve information from EPA Air Quality System (AQS) MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries air quality monitoring site information from the EPA's public database. It accepts query parameters (parameter codes, dates, state codes) to filter results but does not create, modify, delete, or execute external operations. The data returned is informational metadata about monitoring infrastructure. There is no financial impact, no destructive capability, and no code execution.
From the tool's definition Tool name 'aqs_monitors_by_site' and description states 'Get air quality monitors at a specific monitoring site.
Attacks that exploit this kind of access
Get air quality monitors at a specific monitoring site. Returns detailed information about monitors including location, operational dates, and measurement parameters. Parameters: - param: 5-digit AQS parameter code for the pollutant. Common codes: - 44201: Ozone (O3) - 88101: PM2.5 (Fine Particulate Matter, Local Conditions) - 81102: PM10 (Particulate Matter) - 42401: Sulfur Dioxide (SO2) - 42101: Carbon Monoxide (CO) - 42602: Nitrogen Dioxide (NO2) - bdate/edate: Begin and end dates in YYYYMMDD format (must be same calendar year) - state: 2-digit FIPS state code (e.g.,. It is categorised as a Read tool in the EPA Air Quality System (AQS) MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EPA Air Quality System (AQS) MCP Server MCP server in PolicyLayer and add a rule for aqs_monitors_by_site: 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 EPA Air Quality System (AQS) MCP Server. Nothing to install.
aqs_monitors_by_site 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 aqs_monitors_by_site 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 aqs_monitors_by_site. 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.
aqs_monitors_by_site is provided by the EPA Air Quality System (AQS) MCP Server MCP server (tyson-swetnam/aqs-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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