How can an AI agent get live stock market data without an API key
An AI agent gets live stock market data without an API key by sending the upstream request path to x402stock's agent-accessible API storefront and settling the HTTP 402 payment challenge that comes back. The storefront is at agents.x402stock.xyz, the paid proxy base published on 18 September 2026 is https://agents.x402stock.xyz/zcj/jobosa66czb2, and a single-ticker US equity quote there is priced at $0.01 per request.