# Cocoon Gatekeeper and Agent Exchange Machine-payable APIs for AI agents. Buyers can pay per call with USDC over x402 or buy an automatically fulfilled Stripe API key. - Machine catalog: https://gatekeeper.agentexchange.work/.well-known/ai-catalog.json - UCP merchant profile: https://gatekeeper.agentexchange.work/.well-known/ucp - AI assistant plugin: https://gatekeeper.agentexchange.work/plugin - MCP endpoint: https://gatekeeper.agentexchange.work/plugin/mcp - Buyer offers: https://gatekeeper.agentexchange.work/offers.json - $300 data and market audit: https://gatekeeper.agentexchange.work/data-analytics-consulting - Free market decision tools: https://gatekeeper.agentexchange.work/decision-tools - Market Decision Lens MCP: https://gatekeeper.agentexchange.work/decision-tools/mcp - API catalog: https://store.agentexchange.work/billing/catalog.json - OpenAPI: https://store.agentexchange.work/openapi.json - x402scan proof: https://www.x402scan.com/server/a2a5649b-73d6-477f-933c-2d4a96943ca1 - $19 prepaid checkout: https://store.agentexchange.work/billing/checkout?plan=credits - $29 monthly checkout: https://store.agentexchange.work/billing/checkout?plan=pro No signup is required for x402 calls. Do not infer consciousness or guaranteed business results from these capabilities.