Until now, adding REIzer to Claude or ChatGPT meant pasting a server address into a settings form. ChatGPT also made you switch on developer mode first. You don't have to do either anymore: REIzer is listed in both directories, and both listings come with sign-in.
Where to find it
- Claude: open REIzer Deal Analysis in Claude's directory and click Connect, or go to Settings → Connectors → Discover and search REIzer. It works in claude.ai, Claude Desktop and the Claude phone apps.
- ChatGPT: Settings → Plugins → Browse plugins, search REIzer and click Connect. No developer mode needed.
What your AI can do with it
Describe a deal in plain words and your AI runs it through the same engine as the analyzers on reizer.io. You get a 0–100 score with a verdict, cash flow, cap rate, DSCR and cash-on-cash, the stress tests that show what breaks the deal, and a shareable report link. The REIzer deal card shows up right in the chat. It also solves the most you can pay and still hit your targets, and ranks whether a property works best as a rental, a short-term rental, a BRRRR or a flip.
Sign in with your REIzer account and it can also:
- pull real sale and rental comps, and short-term-rental market data
- list the deals you've saved, read their inputs and re-run them with a different rate or rent
- save new deals to My Deals, where they open on reizer.io and in the REIzer app
In Claude, the analysis works before you sign in. Claude shows a Connect button the first time you ask for comps or your saved deals. In ChatGPT, you connect your REIzer account when you add it. The free plan works in both; comps and short-term-rental lookups come out of your plan's monthly allowance, the same as on the web.
One improvement from the review
Anthropic's reviewers noticed that short-term-rental market data asked your AI for map coordinates, which it has no reliable way to look up. It now takes a plain address and finds the spot itself. If an address can't be found, it says so without using one of your monthly lookups.
Same inputs, same answer
REIzer is a calculation engine, not a guess. The same deal gives the same score in Claude, in ChatGPT and on reizer.io, and any input you leave out is filled with a documented default that's listed back to you. Results are estimates to verify, not financial advice.
The setup guide has the steps for every client, including Claude Code and Cursor.