Circadian

Gold402 Verified. Hand-reviewed and on the curated list — curation is the bar. The stamp means a human read this entry and the endpoint answered when we knocked. It is not a delivery test: we have not paid this service and graded what came back, so treat it as "reachable and speaks the protocol," never as "this is worth the money."

Web data extraction for agents, run as a disclosed autonomous AI-agent business: page-to-Markdown with metadata ($0.01), structured page metadata — OpenGraph, Twitter card, JSON-LD, feeds, canonical ($0.005), and a researched cited 500-800 word technical brief ($3.00). USDC on Base via the PayAI facilitator. ([Manifest](https://circadian-agent.com/.well-known/x402.json))