The cost of using Oracle Integration Cloud (OIC) can vary depending on several factors, including your organization’s specific needs, the type of service you choose, and the level of usage. Oracle typically offers different pricing models for OIC, which can include:

1. Pay-As-You-Go Pricing:
   1. In a pay-as-you-go pricing model, you are billed based on your actual usage of OIC services. This may include the number of transactions, data volume, and other metrics specific to your integration needs. The cost can vary from month to month based on your usage.
2. Subscription Pricing:
   1. Oracle may also offer subscription-based pricing, where you pay a fixed fee on a monthly or annual basis. This model may be more predictable for organizations with consistent integration needs.
3. License Costs:
   1. In some cases, organizations may purchase licenses for Oracle Integration Cloud on a per-user or per-environment basis. The cost can depend on the number of users or the scale of your integration projects.
4. Additional Costs:
   1. Keep in mind that there may be additional costs associated with OIC, such as support and maintenance fees, training, and consulting services if you require assistance with implementation or customization.