/api/v1/export/markets/{ext}GETsort_dir=asc. Columns: market_id, ticker, platform, question, probability, volume, volume_24h, open_interest, status, category, end_date, created_at.ak_ prefix), sent as a Bearer token or an ?api_key= query parameter. Each endpoint requires the read scope for its resource (e.g. org:rates:read for rates). Token in: header2026-senate.falsefalseunknown, active, closed, resolved, expired. The live list is also served by the snapshot meta endpoint."desc"message. One of bad_request, unauthorized, forbidden, not_found, conflict, service_unavailable, upstream_error, service_error, or internal_error.rate_limited. Branch on this to detect a throttled request.rpm for the per-minute cap or daily for the daily one.