What class in incoterms is instant contract?

There is no specific class called "instant contract" in Incoterms. Incoterms, or International Commercial Terms, are a set of internationally recognized rules that define the responsibilities of buyers and sellers in international trade. They provide clear guidelines for the allocation of costs, risks, and responsibilities between parties involved in the transportation and delivery of goods.

Incoterms consist of 11 different terms, each representing a specific set of responsibilities and obligations. The terms are divided into two main groups based on the mode of transportation: Incoterms for any mode of transportation, and Incoterms specifically for sea and inland waterway transport.

To determine which Incoterms rule might be closest to an "instant contract" in your context, you should consider the requirements and expectations of both parties involved in the transaction. It is important to consult the official ICC (International Chamber of Commerce) publication on Incoterms to select the most suitable term for your specific commercial transaction.