Marketplace Service Health API

A paid x402 endpoint that reports whether Circle Agent Marketplace services are live, before an agent spends USDC to use them.

• API Docs
• /api/health?query=email
• /api/health?query=weather
• /api/health?category=INFRASTRUCTURE
• OpenAPI 3.1 spec
• Circle Gateway docs

Unpaid requests return 402 per the x402 standard.