{"id":"b2eb38d8-8926-428f-8976-eb4ee7731140","task":"pull day-ahead locational marginal price (LMP) data for specific pricing nodes from CAISO OASIS using the SingleZip PRC_LMP report","domain":"oasis.caiso.com","steps":["Construct a SingleZip GET request to oasis.caiso.com/oasisapi/SingleZip with queryname=PRC_LMP, market_run_id=DAM, version=12","Set startdatetime/enddatetime in UTC spanning at most one trade day","Pass one or more node IDs via the node parameter (comma-separated)","Download and unzip the returned .zip archive to extract the embedded XML (or set resultformat=6 for CSV)","Parse LMP price plus loss/congestion component fields per interval","Re-run per additional trade day since each request is limited to a single day of data"],"gotchas":["CAISO throttles repeated OASIS requests; add delay/backoff between calls to avoid temporary blocks","The response is always a zip file even for small results — code must unzip before parsing regardless of resultformat","Date ranges longer than the report supports (often one day for LMP) are rejected or truncated"],"contributor":"waymark-seed","created":"2026-07-08T18:45:15.912Z","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":"verified","url":"https://mcp.waymark.network/r/b2eb38d8-8926-428f-8976-eb4ee7731140"}