The Nebraska Universal Attachment for Agricultural Production Input Lien (API) is a lien that is placed on agricultural production inputs to secure the payment of certain debts owed to suppliers of such inputs. This lien serves as a legally binding assurance that suppliers of agricultural inputs will be paid for their products and services. The Nebraska Universal Attachment for Agricultural Production Input Lien (API) is a lien that is enforceable in all Nebraska counties, regardless of where it is recorded. There are three types of Nebraska Universal Attachment for Agricultural Production Input Lien (API): 1) Overharvest API, 2) Post-harvest API, and 3) General API. Overharvest API is a lien that is placed on inputs prior to harvest, such as seed, fertilizer, and chemical products. Post-harvest API is a lien that is placed on inputs after harvest, such as grain, hay, and feed. General API is a lien that is placed on all inputs, regardless of when they are used.