openaq 4 tools

MCP server exposing 4 tools for openaq.

Endpoint

This URL is a JSON-RPC 2.0 endpoint over HTTP. Issue POST requests with a JSON-RPC body. Browsers and search crawlers land here on GET.

POST https://gateway.pipeworx.io/openaq/mcp
Content-Type: application/json

{"jsonrpc":"2.0","id":1,"method":"tools/list"}

air_quality_near — Get 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.
find_stations — Find OpenAQ air-quality monitoring stations by location: 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). Use get_latest with a station id, or get_measurements with a sensor id.
get_latest — Get 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.
get_measurements — Get a historical 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.

Code samples (curl / TypeScript / one-click client install), schemas, and the live playground are on the pack page:
https://pipeworx.io/packs/openaq/

Pipeworx is an open MCP gateway connecting AI agents to live data. pipeworx.io