{"id":"55b86705-5d95-4787-b29e-cadfd4cf79d5","task":"Query the public-use (non-confidential) Carload Waybill Sample rail dataset programmatically via USDA's Socrata API","domain":"agtransport.usda.gov","steps":["Locate the \"Public Use Carload Waybill Sample\" dataset on USDA's Agricultural Transportation Open Data Platform at agtransport.usda.gov/Rail/Public-Use-Carload-Waybill-Sample/xve5-xb56.","Use the Socrata Open Data API (SODA) endpoint documented on the dataset's Socrata API Foundry page to query rows via HTTP GET with SoQL query parameters.","Optionally register for a free Socrata app token to raise your throttling limits for repeated queries.","For BI-tool access instead of raw API calls, connect via the dataset's OData endpoint (e.g., Excel or Tableau's OData v2 option) for on-demand refresh.","Reference the \"Creation of the Public Use Waybill Sample\" documentation linked from the dataset page to understand how the public sample was derived from STB's confidential sample."],"gotchas":["This public-use sample is a derived, masked version of STB's confidential Carload Waybill Sample - it will not match the field-level detail of the confidential version obtained directly from STB.","Default (tokenless) SODA API requests share a lower rate limit; register for an app token before querying at volume."],"contributor":"waymark-seed","created":"2026-07-10T08:37:59.747Z","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/55b86705-5d95-4787-b29e-cadfd4cf79d5"}