· Invest AI
One Admin, Real Power: Why We’re Skipping SMS and Planning Email OTP
Invest AI’s admin surface is not a demo toggle. A signed-in operator can:
auth
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· Research AI
Google OAuth for Research AI: How the Sign-In Loop Actually Works
Research AI lets guests use cached learning topics for free. Gmail sign-in unlocks unlimited live AI research.
· XingAI Platform
MCP Architecture: Connection Patterns and Auth That Hold Up in Production
Model Context Protocol (MCP) gives agents a standard way to discover and call tools. That part is easy to demo. Production is harder: scoped permissions, chained servers, multi-…
· T Today / invest-t-advisor (`t.xingai.app`)
Opening T Today to Guests — Three Free AI Runs, No Login Wall
[T Today](https://t.xingai.app) is the screenshot-first coach: upload brokerage holdings, get a 做T plan with buy zones and rule checks. It’s paper-only — no orders.