Connect your AI in 30 seconds

REIzer is listed in Claude's connector directory as REIzer Deal Analysis. claude.ai, Claude Desktop and the Claude phone apps share one set of connectors, so you add it once and it's in all of them.

Step 1: Add REIzer from the directory

Or find it yourself: open settings and find Connectors in the left nav, under the Customize heading. Switch to Discover, search REIzer, open REIzer Deal Analysis and click Connect.

Step 2: Run it

In a new chat, ask: "Underwrite this rental with REIzer: $285K purchase, $3,100/mo rent, 25% down at 6.75%." The analysis tools need no account, so you should get a 95/100 score, $624.77/mo cash flow, DSCR 1.45 and a report link straight away, with the REIzer deal card drawn in the chat.

Step 3: Sign in when Claude asks

The first time you ask for comps, short-term-rental data or your saved deals, Claude shows a Connect button. A REIzer window opens: sign in (or create a free account), check that it names Claude and sends you back to claude.ai, and click Allow. Claude then finishes the request. More on signing in.

Tool permissions

Claude groups the tools by the safety declarations REIzer publishes:

By default Claude asks before each call. If you'd rather it just run, switch a group to Always allow from the dropdown on the right. Nothing REIzer exposes deletes or changes anything you already have.

Prefer to add it by hand?

If your organization has the directory turned off, add REIzer as a custom connector: Connectors → Add → Add custom connector, name REIzer, URL https://reizer.io/mcp/account, Authentication Sign in when needed, OAuth client Register automatically. Free Claude accounts are limited to one custom connector. For the four analysis tools only, with no sign-in at all, use https://reizer.io/mcp instead.

https://reizer.io/mcp/account

Rather use an API key than sign in? The dialog has no field for custom headers, so paste your personal connector link as the URL instead: https://reizer.io/mcp/rz_live_…, shown with every key under Settings → API keys. Treat the link like a password; revoking the key kills it.

REIzer is a published ChatGPT plugin, listed as REIzer (AI real estate deal analyzer). ChatGPT asks you to connect a REIzer account when you add it, and the free REIzer plan is enough.

Step 1: Find REIzer

Go to Settings → Plugins → Browse plugins, search REIzer and open it.

Step 2: Connect your REIzer account

Click Connect. A REIzer window opens: sign in, or create a free account and you'll come straight back. Check that it names ChatGPT and sends you back to chatgpt.com, then click Allow. ChatGPT shows REIzer as connected.

Step 3: Run it

In a new chat with REIzer enabled, ask:

> Underwrite this rental with REIzer: $285K purchase, $3,100/mo rent,
  25% down at 6.75%.

Called analyze_deal

Strong — 95/100. $625/mo cash flow, DSCR 1.45, 8.5% cap rate.
Full report: reizer.io/report.html?id=…

The REIzer deal card (score dial, verdict and the four figures that matter for the strategy) appears in the chat. Then try "list my saved deals" or "pull comps for 4917 Maple Ave, Dallas, TX".

Prefer developer mode?

You can still add REIzer by hand on ChatGPT for web: turn on Settings → Security and login → Developer mode, then Settings → Plugins → Browse plugins → +. Name it REIzer, leave Connection on Server URL, enter https://reizer.io/mcp/account with Authentication OAuth (leave the advanced OAuth fields empty), or https://reizer.io/mcp with No Auth for the four free tools only. Tick I understand and want to continue and click Create.

Optional: use your personal connector link

The developer-mode form has no field for custom headers, so the usual X-API-Key route isn't available there. To use an API key instead of signing in, paste your personal connector link in the URL field:

https://reizer.io/mcp/rz_live_…  ← your key, from Settings → API keys

Get yours under Settings → API keys (shown with every key you create). It unlocks pull_comps and str_market_data, and moves your analysis calls off the shared pool onto your own account budget. Treat the link like a password; revoking the key kills it.

Cursor accepts an install link, which makes it the quickest client here — nothing to create, nothing to paste.

Step 1: Click the install link

Use the Add to Cursor button at the top of this page. Cursor comes to the front with an Install MCP Server? dialog, already filled in:

Click Install. It lands under Home MCP Servers — available in every project. Cursor also has project-level and Cloud scopes if you'd rather keep it to one repo.

Step 2: Verify the connection

Cursor Settings → Tools & MCPs (Cursor is migrating this page to Customize, so look there if it has moved). reizer should show a green dot and "4 tools enabled". Four is right: the two licensed-data tools appear only once the connection carries an API key.

Then ask the agent: "Underwrite this rental with REIzer: $285K purchase, $3,100/mo rent, 25% down at 6.75%."

Prefer to do it by hand?

Both alternatives are equivalent — the install link just writes this config for you:

• Cursor Settings → Tools & MCPs → Add Custom MCP, then fill in the same three fields.
• Or create the file yourself — ~/.cursor/mcp.json for every project, .cursor/mcp.json inside one repo. Neither exists by default.

{
  "mcpServers": {
    "reizer": { "url": "https://reizer.io/mcp" }
  }
}

VS Code's Copilot agent mode speaks MCP via a workspace config file.

Step 1: Create the config

Add .vscode/mcp.json to your workspace:

{
  "servers": {
    "reizer": { "type": "http", "url": "https://reizer.io/mcp" }
  }
}

Step 2: Verify the connection

Open Copilot chat in agent mode — the REIzer tools appear in the tools picker.

Any agent framework or client that speaks MCP over streamable HTTP connects with just the URL — no OAuth, no session state. initialize negotiates 2025-06-18, 2025-03-26, or 2024-11-05:

{
  "mcpServers": {
    "reizer": { "type": "http", "url": "https://reizer.io/mcp" }
  }
}