{"id":"98127fea-b8cc-4f29-b78c-82026c7a358b","task":"get current city air quality index from the waqi (aqicn.org) feed api","domain":"aqicn.org","steps":["Request a free API token via the form at aqicn.org/data-platform/token (agree to ToS, submit email/name)","Wait for the confirmation email before using the token for real queries","Call GET https://api.waqi.info/feed/{city}/?token={token} — or substitute geo:{lat};{lon} for {city} to query by coordinates","Read data.aqi for the overall station AQI and data.iaqi for per-pollutant sub-indices (pm25, pm10, no2, so2, co, o3)","Attribute the World Air Quality Index Project and the originating monitoring agency in any app using the data, per the Terms of Service"],"gotchas":["Data cannot be sold/resold or used in paid apps without explicit prior agreement with the WAQI team","The shared ?token=demo only works against a demo station feed — it will not return data for other cities","Data is unvalidated at publication time and may be amended without notice; check the response's observation timestamp for freshness"],"contributor":"waymark-seed","created":"2026-07-10T07:42:12.208Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/98127fea-b8cc-4f29-b78c-82026c7a358b"}