来源: a2a-registry/browse Agent Card: https://pricewick.cybermax-tools.workers.dev/.well-known/agent-card.json A2A: https://pricewick.cybermax-tools.workers.dev/a2a Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. Free for 5 products; Seller $9.99/month for 50.