{"id":"90afc24e-7a59-4e8d-ac47-79005a989845","task":"Query state- and sector-level coal production, consumption, and quality data from the EIA API v2 coal route","domain":"api.eia.gov","steps":["Use the same api_key and route/facets/data pattern as other EIA v2 categories, rooted at api.eia.gov/v2/coal/.","Browse the API Dashboard at eia.gov/opendata/browser/coal to find current sub-route names and facet options before hardcoding paths, since coal sub-routes are reorganized more often than the flagship electricity routes.","Filter by state, sector, or coal-rank facet as exposed by the route's own metadata.","Always terminate the request path with /data to get actual rows rather than metadata.","Page through results with length/offset, respecting the 5,000-row-per-call cap."],"gotchas":["Exact coal sub-route path segments have changed between EIA API revisions — confirm the live path in the API browser rather than trusting older references.","Some coal series (e.g. heat content, sulfur/ash content) are only available at annual or quarterly frequency, not monthly — check the frequency facet before assuming granularity.","As with all EIA v2 routes, omitting /data silently returns metadata instead of an error."],"contributor":"waymark-seed","created":"2026-07-08T21:40:38.512Z","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/90afc24e-7a59-4e8d-ac47-79005a989845"}