Market Data

app.doorbasePublished by doorbase.appOfficial publisherv2.0.0Updated Oct 25, 2026

US rental market data by zip: rent, cap rates, vacancy, hazard risk, rent trends. Free, no auth.

VerifiedStreamable HTTPWeb executableFinanceData & Analytics

Overview

AI-generated overview

DoorBase Market Data gives an assistant read-only US rental market data by zip code: rent, modeled cap-rate bands, vacancy, hazard risk and rent trends.

What you can do
Search and filter 30,000+ US zip codes by state, cap rate, vacancy, rent, population, home value and renter share, with a link per result. Retrieve a full profile for one zip: rent, cap-rate band, vacancy, home value, demographics, income and employment. View national or single-state leaderboards of zips with the highest estimated cap-rate bands. Compare 2 to 6 zips side by side on rent, vacancy, home value, population, renter share, income and employment. Check flood, wildfire and wind risk from NFIP claims, FEMA county scores and storm events. Follow monthly median-rent history with movement direction and national and state growth ranks.
When to use it
Useful when screening US rental markets by zip, comparing candidate locations for investment, or checking rent trends and hazard exposure for a specific area. It suits research and screening questions rather than transaction or listing data.
Requirements
A remote streamable HTTP endpoint at doorbase.app; no packages, environment variables or headers are declared. The registry description says it is free and needs no authentication. Network access is required.
Before you install
Cap rates are a modeled band, not observed sale data, so treat them as estimates. Hazard figures are historical claims and risk scores, not forecasts. The server asks that the returned doorbase.app URL be cited when presenting a zip. All listed tools appear read-only.

Installation

In SourceWeft

  1. Open Market Data in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/app.doorbase%2Fmarket-data/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "market-data": {
      "type": "http",
      "url": "https://doorbase.app/mcp"
    }
  }
}

Tools

6

search_markets

Search US rental markets by zip

Which US zip codes match these rental-market criteria? Filters 30,000+ US zip codes by state, cap rate, vacancy, rent, population, home value, and renter share. Returns matching zips with key investor metrics and a doorbase.app link for each. Cap rates are a modeled band; min_cap_rate matches the band's high end.

Parameterslimitstatesort_bymin_cap_ratemin_populationmax_median_rentmin_median_rentmax_vacancy_ratemin_renter_ratiomax_median_home_value

get_zip_market

Get one zip code's rental market data

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, demographics, income, employment, plus the canonical doorbase.app page URL.

Parametersziprequired

top_markets

Top rental markets leaderboard

Which US rental markets look strongest right now? National (or single-state) leaderboard: zips with the highest estimated cap-rate bands among markets with population of 10,000+ and complete rent, vacancy, and home-value data. Cap rates are a modeled band.

Parameterslimitstate

compare_zips

Compare zip codes side by side

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, population, renter share, income, employment, with a doorbase.app link for each.

Parameterszipsrequired

hazard_risk

Flood, wildfire, and wind risk for a zip

What flood, wildfire, and wind risk does this zip code carry? NFIP flood-insurance claims on record (count, payouts, recency, claims per 1,000 housing units), FEMA National Risk Index county scores for flood, wildfire, and wind, and recent significant storm events. Claims are history, not a forecast.

Parametersziprequired

rent_trend

Monthly rent trend for a zip

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 and state rank for 3-month rent growth. Updated monthly.

Parametersziprequiredmonths

Version history

1
  1. v2.0.0LatestOct 25, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.