HTTP 402

masterclaw.dev — Pay-per-call AI APIs with x402

masterclaw.dev is an x402 server offering pay-per-call AI APIs, enabling agents or humans to pay for compute via HTTP 402 and USDC on the Base network, without API keys or signups. It facilitates agentic commerce with fast, anonymous settlement for services like LLM completions, market signals, and research, aiming for automated machine-to-machine payments.