// SCAN REPORT

EPA Air Quality System (AQS) MCP Server

31 tools. 1 can modify or destroy data without limits.

1 write tool that can modify data. Rate limits recommended.

Last updated: 4 Jul 2026

1 can modify or destroy data

30 read-only

31 tools total

Community server · catalogue entry verified 04/07/2026

How to control EPA Air Quality System (AQS) MCP Server ↓

TOOL MAP

What EPA Air Quality System (AQS) MCP Server exposes to your agents

Read (30) Write / Execute (1) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous EPA Air Quality System (AQS) MCP Server tools

Write · Medium aqs_signup This tool creates a new account/API key registration with the EPA AQS system.

1 of EPA Air Quality System (AQS) MCP Server's 31 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control EPA Air Quality System (AQS) MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and EPA Air Quality System (AQS) MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations

{
  "aqs_signup": {
    "limits": [
      {
        "counter": "aqs_signup_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "aqs_annual_summary_by_box": {
    "limits": [
      {
        "counter": "aqs_annual_summary_by_box_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register EPA Air Quality System (AQS) MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON EPA AIR QUALITY SYSTEM (AQS) →

Instant setup, no code required.

FULL CATALOGUE

All 31 EPA Air Quality System (AQS) MCP Server tools

WRITE 1 tools

Write aqs_signup Register for an EPA Air Quality System (AQS) API key.

READ 30 tools

Read aqs_annual_summary_by_box Get annual summary data for all monitoring sites within a geographic bounding box defined by latitude/longitud Read aqs_annual_summary_by_cbsa Get annual summary data for all monitoring sites within a Core Based Statistical Area (CBSA), which represents Read aqs_annual_summary_by_county Get annual summary data for all monitoring sites in a county. Annual summaries include yearly statistics such Read aqs_annual_summary_by_site Get annual summary data for a specific EPA air quality monitoring site. Annual summaries include yearly statis Read aqs_annual_summary_by_state Get annual summary data for all monitoring sites in a state. Annual summaries include yearly statistics such a Read aqs_daily_summary_by_box Get daily summary air quality data for all monitoring sites within a geographic bounding box. Daily summaries Read aqs_daily_summary_by_cbsa Get daily summary air quality data for all monitoring sites in a Core Based Statistical Area (CBSA). CBSAs are Read aqs_daily_summary_by_county Get daily summary air quality data for all monitoring sites in a county. Daily summaries include arithmetic me Read aqs_daily_summary_by_site Get daily summary air quality data for a specific monitoring site. Daily summaries include arithmetic mean, ma Read aqs_daily_summary_by_state Get daily summary air quality data for all monitoring sites in a state. Daily summaries include arithmetic mea Read aqs_is_available Check if the EPA Air Quality System (AQS) API is operational. Read aqs_list_cbsas Get a list of Core Based Statistical Areas (CBSAs) with their codes. Read aqs_list_counties Get a list of counties within a state with their 3-digit FIPS codes. Read aqs_list_parameter_classes Get a list of parameter classification groups (e.g., Read aqs_list_parameters Get a list of parameters (pollutants/measurements) within a parameter class. Read aqs_list_sites Get a list of air quality monitoring sites within a county with their 4-digit site codes. Read aqs_list_states Get a list of all US states with their 2-digit FIPS codes. Read aqs_monitors_by_box Get all air quality monitors within a latitude/longitude bounding box. Useful for querying monitors in a geogr Read aqs_monitors_by_cbsa Get all air quality monitors in a Core Based Statistical Area (CBSA). CBSAs are metropolitan or micropolitan s Read aqs_monitors_by_county Get all air quality monitors in a county. Returns detailed information about monitors including location, oper Read aqs_monitors_by_site Get air quality monitors at a specific monitoring site. Returns detailed information about monitors including Read aqs_monitors_by_state Get all air quality monitors in a state. Returns detailed information about monitors including location, opera Read aqs_quarterly_summary_by_county Retrieve quarterly summary data for all air quality monitoring sites in a county. Read aqs_quarterly_summary_by_site Retrieve quarterly summary data for a specific air quality monitoring site. Read aqs_quarterly_summary_by_state Retrieve quarterly summary data for all air quality monitoring sites in a state. Read aqs_sample_data_by_box Get raw sample data for all monitoring sites within a geographic bounding box. Read aqs_sample_data_by_cbsa Get raw sample data for all monitoring sites in a Core Based Statistical Area (CBSA). Read aqs_sample_data_by_county Get raw sample data for all monitoring sites in a county. Read aqs_sample_data_by_site Get raw sample data for a specific monitoring site. Read aqs_sample_data_by_state Get raw sample data for all monitoring sites in a state.

FAQ

Questions about EPA Air Quality System (AQS) MCP Server

How do I prevent bulk modifications through EPA Air Quality System (AQS) MCP Server? +

The EPA Air Quality System (AQS) MCP Server server has 1 write tools including aqs_signup. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach EPA Air Quality System (AQS) MCP Server.

How many tools does the EPA Air Quality System (AQS) MCP Server MCP server expose? +

31 tools across 1 categories: Read. 30 are read-only. 1 can modify, create, or delete data.

How do I enforce a policy on EPA Air Quality System (AQS) MCP Server? +

Register the EPA Air Quality System (AQS) MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every EPA Air Quality System (AQS) MCP Server tool call.

Deterministic rules across all 31 EPA Air Quality System (AQS) MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON EPA AIR QUALITY SYSTEM (AQS) →

Instant setup, no code required.

31 EPA Air Quality System (AQS) MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.