Gives Claude cryptographically signed receipts confirming whether 28 global exchanges are currently open for trading. You get five MCP tools that query market state with Ed25519 signatures on every response, so autonomous agents can verify authenticity without trusting the operator. It's fail-closed by design: if the state is unknown, it returns CLOSED. The underlying service runs as a Cloudflare Worker across 300+ edge locations and handles DST transitions, lunch breaks, half-days, and holidays through 2027 for everything from XNYS and XNAS to XHKG and XKRX. Reach for this when you're building trading agents that need to gate pre-trade decisions on verified exchange status rather than guessing or timeout-failing on closed markets.
claude mcp add --transport stdio io.github.lembagang-headless-oracle-mcp -- npx -y headless-oracle-mcp