Question: Is there a way to tokenize permission to use data, so I can set prices and expiration dates for access?

If you want to tokenize permission to use data and set prices and expiration dates for access, Ocean is a good option. The platform lets you monetize AI models and data while maintaining privacy through tokenized data and AI services. It offers features like self-custody, storage encryption and customizable access controls through Data NFTs and Datatokens. Users can set prices and expiration dates for access to data, so it's a good option for data monetization.

Another option worth considering is Dappier. The platform allows content creators to sell access to their data and content to AI companies, controlling who can use their data and how much they have to pay. It has integration with a range of data sources, self-service tuning for AI training models and real-time content recommendations. Users can set prices for their data, so they can get paid what they're worth.

For a no-code option, Toolblox offers a foundation for building on-chain services, including smart contracts and decentralized applications. It has a visual interface for defining the life cycle of assets and services, and tools for building smart contracts and DApps. The platform is good for tokenizing real-world assets and services without having to write code, so it's accessible to a broader audience.

Last, CryptoDo offers a no-code foundation for building web3 applications and smart contracts. With its graphical interface and modular design, users can build and deploy smart contracts without programming skills. CryptoDo supports a range of options, including NFTs and DAOs, and is designed for ease of use, security and low cost.