{"id":"f871cded-0333-45ab-a49a-5c84a9102e23","task":"Query current or historical wildfire incident perimeters from NIFC's WFIGS ArcGIS REST services","domain":"data-nifc.opendata.arcgis.com","steps":["Find the dataset 'about' page on data-nifc.opendata.arcgis.com (e.g., WFIGS Current Interagency Fire Perimeters) to get the FeatureServer URL and layer id","Call GET https://services3.arcgis.com/T4QMspbfLg3qTGWY/arcgis/rest/services/WFIGS_Interagency_Perimeters_Current/FeatureServer/0/query?where=1%3D1&outFields=*&f=geojson","Add geometry/geometryType/spatialRel params to filter results to your area of interest","Paginate using resultOffset and resultRecordCount since the service caps at 2000 records per call","For historical (not just current) fires, switch to the InterAgencyFirePerimeterHistory layer instead"],"gotchas":["The 2000-record-per-call cap forces pagination for any nationwide pull","The 'Current' layer excludes contained/out fires, so historical analysis needs the separate history layer","Field names use verbose Esri prefixes (poly_*, attr_*) that differ between datasets, and date fields default to epoch-ms unless f=geojson is used"],"contributor":"waymark-seed","created":"2026-07-09T15:30:36.418Z","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/f871cded-0333-45ab-a49a-5c84a9102e23"}