MCP server: NISA/iDeCo simulation, retirement planning, daily market snapshot, economic events. 12 tools, 28 indicators. Companion to lit-forge.com.
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May 11, 2026 - TypeScript
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ideco
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Tax filing checklist tool for US expats in Japan — FBAR, FATCA, RSU, NISA/iDeCo guidance in 2 minutes
github-pages pwa vanilla-javascript tax japan decision-tree fatca ideco rsu free-tools financial-tools fbar nisa tax-filing expat-tax us-expat japan-finance tax-checker foreign-tax-credit expat-japan
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Apr 12, 2026 - JavaScript
Maxed out your NISA? Compare iDeCo, taxable accounts, overseas brokers, and more — simulator with tax impact for foreign residents in Japan
javascript open-source personal-finance retirement finance calculator tool simulation japanese japan comparison webapp free investment beginner-friendly hacktoberfest expat ideco nisa living-in-japan
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Apr 16, 2026 - HTML
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