Live air-quality index (US & EU scales) by city or coordinates, with the pollutant breakdown.
Keyless over MCP, or one REST call with a free key. Every datapoint is provenance-stamped and citeable.
# REST (free key)
curl -H "X-API-Key: $KEY" "https://dynamicfeed.ai/air-quality?city=Delhi"
# MCP (keyless) — point any client at https://dynamicfeed.ai/mcp, then call:
air_quality(city="Delhi")
{ "location": "Delhi", "us_aqi": 168, "category": "Unhealthy",
"pm2_5": 84.2, "observed_at": "2026-06-03T12:00:00Z" }
Air quality shifts hour to hour and is never memorised. This serves current AQI so health, travel and ops agents advise on now, not last year.
Open-Meteo air-quality under a commercial licence.
Both indices are returned.
MCP is keyless; REST uses a free key.