About Openaq
Openaq is an MCP server published by pipeworx-io in the Security category: openAQ MCP — wraps OpenAQ v2 API (free, no auth required).
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Install
git clone https://github.com/pipeworx-io/mcp-openaqThis server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.
Tools (4)
air_quality_nearGet the latest air-quality readings (PM2.5, PM10, O3, NO2, SO2, CO, etc.) at the monitoring station NEAREST to a latitude/longitude. PREFER for "air quality near me", "what is the air quality at <coordinates>", "is the air bad in <place> right now". Returns the nearest station with its most recent pollutant values, plus other nearby stations.
Parameters not published.
find_stationsFind OpenAQ air-quality monitoring stations by location: a city or place name, coordinates+radius (nearest first), a country (ISO 3166-1 alpha-2 code), or a bounding box. Returns station id, name, country, coordinates, and the pollutants each measures (with sensor ids), plus resolved_place echoing the coordinates a city name resolved to. This is the first step for a historical series: find the station here, then pass its sensor_id to get_measurements. At least one location argument is required — the tool will not return an unfiltered global list.
Parameters not published.
get_latestGet the latest reading for every pollutant at a specific OpenAQ station (by location id from find_stations). Returns each parameter (PM2.5, O3, NO2, etc.) with its value, units, and measurement time.
Parameters not published.
get_measurementsGet the most recent time series (hourly or daily aggregates) for a single OpenAQ sensor (sensor id from find_stations), newest first. Use for pollutant trends over time at one station/parameter. Returns the sensor's LAST `limit` readings — note that many OpenAQ sensors are archived and stopped reporting years ago, so "most recent" can legitimately be several years old: always read the returned timestamps rather than assuming the data is current. Use find_stations or get_latest to pick a sensor that is still reporting.
Parameters not published.
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README
mcp-openaq
OpenAQ MCP — wraps OpenAQ v2 API (free, no auth required)
Part of Pipeworx — an MCP gateway connecting AI agents to 250+ live data sources.
Tools
| Tool | Description |
|---|
Quick Start
Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):
{
"mcpServers": {
"openaq": {
"url": "https://gateway.pipeworx.io/openaq/mcp"
}
}
}
Or connect to the full Pipeworx gateway for access to all 250+ data sources:
{
"mcpServers": {
"pipeworx": {
"url": "https://gateway.pipeworx.io/mcp"
}
}
}
Using with ask_pipeworx
Instead of calling tools directly, you can ask questions in plain English:
ask_pipeworx({ question: "your question about Openaq data" })
The gateway picks the right tool and fills the arguments automatically.
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License
MIT
README copy captured when this server was indexed; it may lag the repository. The original is authoritative.