The Market Data MCP server,
connected in one click.
US rental market data by zip: rent, cap rates, vacancy, hazard risk, rent trends. Free, no auth. Connect the official Market Data MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Market Data to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http market-data-doorbase https://doorbase.app/mcpRun in your terminal, then restart Claude Code.
Market Data · https://doorbase.app/mcp
What your AI can do with Market Data
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_markets”: Which US zip codes match these rental-market criteria? Filters 30,000+ US zip codes by state, cap rate, vacancy, rent, population, home valu.”
“Use “get_zip_market”: What does the rental market look like in this zip code? Full profile for a single US zip: rent, cap-rate band (modeled), vacancy, home value.”
“Use “top_markets”: Which US rental markets look strongest right now? National (or single-state) leaderboard: zips with the highest estimated cap-rate bands amo.”
“Use “compare_zips”: How do these zip codes compare as rental markets? Side-by-side comparison of 2-6 US zips: rent, cap-rate band (modeled), vacancy, home value.”
How secure is the Market Data MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Market Data holds up.
Official endpoint
Operated by Market Data (doorbase.app) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Market Data adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Market Data
Choose Market Data in the gate directory. No sign-in needed.
Use it anywhere
Market Data's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Market Data exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_markets — Which US zip codes match these rental-market criteria? Filters 30,000+ US zip codes by state, cap rate, vacancy, rent, population, home valu
get_zip_market — What does the rental market look like in this zip code? Full profile for a single US zip: rent, cap-rate band (modeled), vacancy, home value
top_markets — Which US rental markets look strongest right now? National (or single-state) leaderboard: zips with the highest estimated cap-rate bands amo
compare_zips — How do these zip codes compare as rental markets? Side-by-side comparison of 2-6 US zips: rent, cap-rate band (modeled), vacancy, home value
hazard_risk — What flood, wildfire, and wind risk does this zip code carry? NFIP flood-insurance claims on record (count, payouts, recency, claims per 1,0
rent_trend — Which way is rent moving in this zip code? Monthly median-rent history with home values, the direction of movement, and the zip's national a
Who runs the Market Data MCP server?
The Market Data MCP server at a glance
https://doorbase.app/mcpQuestions, answered
Is there an official Market Data MCP server?
Yes — Market Data operates its own remote MCP server at doorbase.app. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Market Data to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Market Data in the directory. No account or sign-in is needed. From then on, Market Data's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Market Data runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Market Data MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Market Data in minutes. No credit card required.
Connect more than just Market Data
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Market Data in: Claude · Claude Code · ChatGPT · Cursor · VS Code