{"id":"38e267a0-af50-4732-986e-58718aaa361b","task":"look up openaq v3 monitoring locations and fetch their latest sensor measurements","domain":"openaq.org","steps":["Sign up at explore.openaq.org/register to get an OpenAQ API key","Call GET https://api.openaq.org/v3/locations (optionally filtered by coordinates/radius) or GET /v3/locations/{locations_id} to find a location and its ID","Send the API key in the X-API-Key request header on every call","Call GET https://api.openaq.org/v3/locations/{locations_id}/latest to get the most recent value from every sensor at that location","Use the limit and page query params (limit default 100) if a location has many sensors","Watch the x-ratelimit-remaining/x-ratelimit-reset response headers to avoid hitting the rate limit"],"gotchas":["Requests without a valid X-API-Key header are rejected with 401 Unauthorized","Free tier is capped in requests per minute/hour; repeated overages can lead to a temporary or permanent ban","/latest returns only the newest value per sensor, not a time series — use the sensor measurements endpoint for history"],"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/38e267a0-af50-4732-986e-58718aaa361b"}