xTag is a AI assistant that demonstrates how LLMs can be transformed into truly autonomous agents
The core innovation lies in its ability to understand a user's intent, identify a corresponding paid API endpoint, seek confirmation, and execute a payment-enabled request—all within a simple chat interface. This is powered by the x402 protocol, which standardizes programmatic payments for API access.
xTag solves this by integrating a crypto wallet directly with the AI agent, governed by the x402 protocol. This enhancement provides several key benefits:
Economic Capability: The agent can now pay for the resources it needs to fulfill a user's request, unlocking access to high-quality, proprietary data and services. True Autonomy: With the ability to transact, the agent moves beyond being a simple information retriever to become a genuine actor in the digital economy. It can book services, purchase data, or trigger on-chain events. Seamless User Experience: The user interacts via natural language, while the agent handles the entire backend process of API negotiation, payment, and data retrieval. The complexity of private keys, gas fees, and transaction signing is completely hidden.
This project is built leveraging the x402 Protocol and Agentic Systems. We chose Polygon as a provider for making agentic payments through the protocol. It made possible a very exciting end project, a system where Agent can pay for itself for accessing services. Nothing gets more awesome than that. Also, we integrated it as a World Mini App, this will help get it mainstream and to a wide variety of users..