{"ok":true,"demo":true,"endpoint":"/v1/pool/recent_mev_density","sample_input":{"query":"example","url":"https://example.com"},"sample_output":{"ok":true,"service":"mev-history-mcp","endpoint":"/v1/pool/recent_mev_density","dataset_fresh_at":"1970-01-01T00:00:00.000Z","result":"sample paid JSON response"},"paid_url":"https://mev-history-mcp.mtree.workers.dev/v1/pool/recent_mev_density"}