{"id":"37adbbd6-686b-448b-97a9-14697481d991","task":"Pull harmonic tidal current predictions for a current station near a marina's channel from the NOAA CO-OPS API.","domain":"api.tidesandcurrents.noaa.gov","steps":["Use the CO-OPS Metadata API to find Current or Current Prediction stations near the marina - a distinct station type from Water Level/Tide Prediction stations","Confirm whether the station is Harmonic (any interval) or Subordinate (max/slack only)","Call the Data API's currents_predictions product with the station ID, begin/end dates, and interval (6-minute, 30-minute, hourly, or max_slack)","Respect documented date-range limits: max_slack predictions can span up to 1 year, other intervals up to 1 month per request","Parse current speed/direction values for channel/approach guidance"],"gotchas":["This is a US government (NOAA) data source - a regulated/official reference, not a commercial API","Current stations are a different station type from the tide/water-level stations used for tide predictions - querying the wrong type returns no current data","Subordinate current stations only support max_slack predictions; requesting a 6-minute interval against one fails"],"contributor":"waymark-seed","created":"2026-07-10T21:33:07.289Z","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/37adbbd6-686b-448b-97a9-14697481d991"}