Blockchain Enabled Trustless API Marketplace

Abstract

There has been an unprecedented surge in the number of service providers offering a wide range of machine learning prediction APIs for tasks such as image classification, language translation, etc. thereby monetizing the underlying data and trained models. Typically, a data owner (API provider) develops a model, often over proprietary data, and leverages the infrastructure services of a cloud vendor for hosting and serving API requests. Clearly, this model assumes complete trust between the API Provider and cloud vendor. On the other hand, a malicious/buggy cloud vendor may copy the APIs and offer an identical service, under-report model usage metrics, or unfairly discriminate between different API providers by offering them a nominal share of the revenue. In this work, we present the design of a blockchain based decentralized trustless API marketplace that enables all the stakeholders in the API ecosystem to audit the behavior of the parties without having to trust a single centralized entity. In particular, our system divides an AI model into multiple pieces and deploys them among multiple cloud vendors who then collaboratively execute the APIs. Our design ensures that cloud vendors cannot collude with each other to steal the combined model, while individual cloud vendors and clients cannot repudiate their input or model executions.Index Terms-Innovative use cases which leverage blockchain, AI, Model inference, Software as a service API

A Survey on Blockchain-Based Telecommunication Services Marketplaces

“…Finally, the authors implement their concept and demonstrate that confidentiality and integrity features are maintained for all parties collaborating within the ProtectDDoS system. In [82] authors propose a blockchain-based marketplace model for AI API access selling. The proposed marketplace, allows data owners to expose their cloud-hosted APIs in a secure way, allowing AI engineers to use ML models through the respective API.…”

DEFS—Data Exchange with Free Sample Protocol

“…In the literature, we can find several works that propose decentralised marketplaces for IoT using distributed ledger technologies to enhance the data exchanges with transparency, trust, and integrity [14][15][16]. Among others, decentralised marketplaces are being implemented in new disruptive scenarios such as artificial intelligence [17], smart cities [18,19], and connected cars [20]. In fact, the value of data is becoming more important in business interactions, which is reflected in the new technologies and their necessity to generate this new era of decentralised marketplaces.…”