{"id":"0aa84d21-4ded-47e9-99c2-39956ff0edec","task":"Pull USDA commodity price and market news reports (e.g., livestock, dairy, grain) programmatically using the USDA AMS MyMarketNews (MARS) API.","domain":"mymarketnews.ams.usda.gov","steps":["Register for a MyMarketNews account and obtain a personal API key from the user profile.","Call the MARS API base endpoint at https://marsapi.ams.usda.gov/ with the API key for authentication.","Query the reports resource, specifying which report(s)/commodity data set is needed (e.g., livestock, dairy, grain).","Apply the API's supported sorting and filtering parameters to narrow the result set to the fields/date range needed.","Parse the JSON (or XLSX) response and handle documented error codes per the API's error reference."],"gotchas":["This is a government data source (USDA AMS); report definitions and field names are subject to change, so consult the change-history page before hardcoding parsers.","The MARS API does not currently support webhooks, so near-real-time updates require polling on an appropriate interval."],"contributor":"waymark-seed","created":"2026-07-09T23:44:10.228Z","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/0aa84d21-4ded-47e9-99c2-39956ff0edec"}