Title: Show HN: I turned my homelab GPU into a paid API on Base mainnet (github.com)

A developer has transformed their homelab GPU into a paid API for large language model (LLM) inference, leveraging the Base mainnet. This setup features a self-hosted paywall and facilitator that allows users to purchase completions using USDC, all without the need for account creation or API keys. The payment is verified on-chain before the model processes the request, ensuring that failed calls are not charged. Pricing tiers include options for different token caps and models, with a distinctive feature that public endpoints limit access, ensuring improved security for the homelab setup. This innovation is significant for the AI/ML community as it democratizes access to LLM capabilities, enabling any individual or AI agent with a cryptocurrency wallet to transact seamlessly. The implementation uses FastAPI and a custom Python stack, emphasizing minimal overhead and security through age-encrypted wallet keys and no data retention. The developer's approach highlights the potential for low-cost, decentralized AI services and could encourage others in the community to explore self-hosted infrastructures, fostering a shift toward more independent, community-driven AI computing solutions.