Macro Lab (macrolab.kr) opens its public-licence macro data to its members' AI agents (the server signs you in once through OAuth): 200+ monthly series for Korea, the US and global markets since 2001 (ECOS, FRED, R-ONE, 국토교통부 실거래가) plus public daily twins and the 국토교통부 apartment sales of every Seoul complex since 2006. Read-only MCP tools (search, series, daily, latest, statistics, rate decisions, apartment complexes) and a skill that explains how to read each column, which unit and benchmark apply, and how to report a relationship without over-claiming.
What you can ask
Using Macro Lab data, chart Korean 3-year KTB yields against the US 2-year yield since 2020 and say what moved first.