Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Zillow for-sale, for-rent and sold listings, and full property details, as structured JSON.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
HASDATA_API_KEY, x-api-keyValues marked secret are keys to your account. Never share them or paste them into a chat.
You need
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"zillow": {
"command": "npx",
"args": [
"-y",
"@hasdata/zillow-mcp"
],
"env": {
"HASDATA_API_KEY": "your-value"
}
}
}
}Run this in your terminal
claude mcp add --transport http zillow 'https://mcp.hasdata.com/mcp?apis=zillow' --header 'x-api-key: your-value'claude mcp add zillow --env HASDATA_API_KEY=your-value -- npx -y @hasdata/zillow-mcpFill in the empty values before running it.
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"zillow": {
"url": "https://mcp.hasdata.com/mcp?apis=zillow",
"headers": {
"x-api-key": "your-value"
}
}
}
}Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"zillow": {
"command": "npx",
"args": [
"-y",
"@hasdata/zillow-mcp"
],
"env": {
"HASDATA_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"zillow": {
"type": "http",
"url": "https://mcp.hasdata.com/mcp?apis=zillow",
"headers": {
"x-api-key": "your-value"
}
}
}
}Paste into .vscode/mcp.json in your project
{
"servers": {
"zillow": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@hasdata/zillow-mcp"
],
"env": {
"HASDATA_API_KEY": "your-value"
}
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This address needs a key in a request header, which the add-connector menu cannot set. Use Claude Code, Cursor or VS Code instead.
Your choice stays on this device in a cookie; no account needed.
x-api-key secret required HTTP headerThese settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified against the domain hasdata.com (the registry checks domain ownership)
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
You need to fill in: HASDATA_API_KEY, x-api-key
Either way works: install it on your computer or connect to the cloud version.
The GitHub repo last changed –, and the latest version (1.0.8) reached the registry 43 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Spec Driven Development, Remote Desktop Commander, FactLot
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
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Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
A hosted Zillow MCP server that gives Claude, Cursor, Windsurf and any other MCP client two read-only Zillow tools. Search for-sale, for-rent and sold listings with rich filters, and read a single property in full, all as structured JSON, with nothing to host.
It reads public listing pages on Zillow.com that a signed-out visitor can see.
1,000 free credits every month, no card required, which is 100 Zillow calls at the base rate.
https://mcp.hasdata.com/mcp?apis=zillow
An MCP client and a HasData API key from the dashboard, free to create with no card, and the free tier covers about 100 calls a month at the 10-credit rate. This is a remote server, so the simplest path is a URL and an x-api-key header, with no container to run. A client that only speaks stdio reaches it through a thin launcher, published as @hasdata/zillow-mcp on npm and hasdata-zillow-mcp on PyPI, shown below.
The server URL is the same for every client. We run it hands-on in Claude Code and Claude Desktop. The other blocks follow each client's own documented format for a remote server.
| Field | Value |
|---|---|
| URL | https://mcp.hasdata.com/mcp?apis=zillow |
| Transport | HTTP, streamable |
| Auth header | x-api-key: HASDATA_API_KEY |
Clients with OAuth support can add the same URL as a connector and sign in without putting a key in a config file.
Claude Code
claude mcp add --transport http zillow "https://mcp.hasdata.com/mcp?apis=zillow" \
--header "x-api-key: HASDATA_API_KEY"
Claude Desktop
Settings, then Connectors, then Add custom connector, then paste https://mcp.hasdata.com/mcp?apis=zillow and sign in.
For the config-file route, Claude Desktop loads only local (stdio) servers, so it reaches a remote server through a stdio launcher. The @hasdata/zillow-mcp package is that launcher, and it reads the key from the environment. Add this to claude_desktop_config.json:
{
"mcpServers": { "zillow": { "command": "npx", "args": ["-y", "@hasdata/zillow-mcp"], "env": { "HASDATA_API_KEY": "YOUR_KEY" } } } }
For Python instead of Node, swap the launcher for the PyPI package, which uvx runs without a manual install:
{
"mcpServers": { "zillow": { "command": "uvx", "args": ["hasdata-zillow-mcp"], "env": { "HASDATA_API_KEY": "YOUR_KEY" } } } }
Cursor
~/.cursor/mcp.json for every project, or .cursor/mcp.json for one:
{
"mcpServers": { "zillow": { "url": "https://mcp.hasdata.com/mcp?apis=zillow", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
Windsurf
~/.codeium/windsurf/mcp_config.json. Windsurf calls the field serverUrl, not url:
{
"mcpServers": { "zillow": { "serverUrl": "https://mcp.hasdata.com/mcp?apis=zillow", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
VS Code
.vscode/mcp.json in the workspace:
{
"servers": { "zillow": { "type": "http", "url": "https://mcp.hasdata.com/mcp?apis=zillow", "headers": { "x-api-key": "HASDATA_API_KEY" } } } }
Prompts, not code. Paste one in and the agent picks the tool itself. Each is annotated with the calls it takes, because every successful call costs 10 credits.
Search for-sale homes in Austin, TX with at least three beds under $600k, sorted newest first, and give me the ten most recent with price and days on market.
*One call, 10 credits. Price, beds, area and days on market come back on the search result.*
Take the top result and pull its full detail: price history, tax history, the price estimate, and the assigned schools.
*One call, 10 credits. Those live on the property page, which the details tool reads by URL.*
Find for-rent condos in Austin that allow cats, then pull the rental estimate on the three cheapest.
*Four calls, 40 credits. One search, then one property call for each of the three.*
For this property URL, give me the list price, the price estimate, and the last three sales in its price history.
*One call, 10 credits.*
A search result is enough to rank and shortlist. Price history, tax history, the estimate, schools and the agent come from the property call, so a prompt that shortlists then inspects three homes is one search plus three property calls.
| Tool | What it returns |
|---|---|
hasdata_zillow_listing_getRealEstateListings | Each listing with address, Zillow URL/zpid, price, Zestimate, beds/baths, sqft, home type, status, days on Zillow, coordinates, thumbnail, and listing agent. 10 credits a call |
hasdata_zillow_property_getPropertyDetails | Address, list price, Zestimate and Rent Zestimate, price and tax history, beds/baths, living area, lot size, year built, home type, HOA, days on Zillow, listing…. 10 credits a call |
Two tools, read-only. Samples below are trimmed from real calls, and the numbers move as the market moves. Read them as shapes. Each tool name links to its endpoint reference, which carries the full field list.
The samples are the payload, not the whole response. A tools/call result carries one text block, and that text is itself JSON holding url, status, text and json, with the scraped data under json. From a raw JSON-RPC response the path is result.content[0].text, parsed, then .json. A chat client unwraps that for you and code talking to the endpoint directly does not.
hasdata_zillow_listing_getRealEstateListings
A page of listings by location keyword, filtered.
| Parameter | Type | Required | Notes |
|---|---|---|---|
keyword | string | yes | The location to search, such as Austin, TX |
type | string | yes | forSale, forRent or sold |
price_min_ / price_max_ | number | Price band | |
beds_min_ / beds_max_ / baths_min_ / baths_max_ | number | Bed and bath bands | |
homeTypes__ | array | house, condo, townhome, multiFamily, apartment, lot, manufactured | |
daysOnZillow | number/string | 1, 7, 14, 30, 90, 6m, 12m and up | |
sort | string | newest, priceLowToHigh, priceHighToLow, squareFeet and more | |
page | number | Result page |
The reference also documents square-footage, lot-size, year-built and HOA bands, plus otherAmenities__, views__, pets__, listingType, propertyStatus__, listingPublishOptions__ and more.
Returns searchInformation with totalResults, a properties array, and pagination whose nextPage is the URL of the following page. Each property carries id, url, homeType, status, price, currency, a rentZestimate rental estimate, daysOnZillow, area in square feet, addressRaw and a structured address, latitude, longitude, beds, baths, listingDetails, mediaDetails and photos.
{
"id": "60134551", "url": "https://www.zillow.com/homedetails/6116-Speyside-Dr-Austin-TX-78754/60134551_zpid/", "homeType": "SINGLE_FAMILY", "status": "FOR_SALE", "price": 320000, "currency": "$", "rentZestimate": 2286, "daysOnZillow": 0, "area": 2277, "address": { "street": "6116 Speyside Dr", "city": "Austin", "state": "TX", "zipcode": "78754" }, "beds": 4, "baths": 3 }
hasdata_zillow_property_getPropertyDetails
One property in full, by its URL.
| Parameter | Type | Required | Notes |
|---|---|---|---|
url | string | yes | A Zillow property URL, the url field from a listing result |
extractAgentEmails | boolean | Attempt to pull the listing agent's email. Adds 5 credits, so the property call costs 15 instead of 10 |
Returns the full page: price, currency, fees, beds, baths, area, yearBuilt, homeType, mlsId, a structured address and geo, the description and highlights, photos, schools, daysOnZillow, views, saves, an agentInfo block, and priceHistory, taxHistory and mortgage arrays. Zillow's own price estimate arrives in a zestimate object holding zestimate, an estimatedSaleRange and a rentZestimate. Read it as an estimate, not as a confirmed value.
areais an object here,{ livingArea, livingAreaUnits }, not the flat number the search tool returns. Readarea.livingAreafor the square footage on a property page, or a numeric comparison likearea > 2000silently fails against an object.
{
"id": 60134551, "status": "FOR_SALE", "price": 320000, "currency": "USD", "yearBuilt": 2002, "beds": 4, "baths": 3, "area": { "livingArea": 2277, "livingAreaUnits": "Square Feet" }, "fees": { "monthlyHoaFee": "$500 annually" }, "zestimate": { "zestimate": 318100, "estimatedSaleRange": "$302K - $334K", "rentZestimate": 2286 }, "address": { "street": "6116 Speyside Dr", "county": "Travis County" }, "agentInfo": { "agentName": "Marie Coleman", "brokerName": "eXp Realty" }, "priceHistory": [{ "date": "2026-08-24", "price": 320000, "event": "listedForSale" }], "schools": { "elementarySchool": { "name": "Bluebonnet Trail", "district": "Manor ISD" } } }
The server ships 2 prompts, ready-made workflows a client can offer instead of making the user compose a tool call.
| Prompt | What it does |
|---|---|
zillow_listings | Find homes for sale, for rent or sold in an area. |
zillow_property | Get the full details of one Zillow property. |
Alongside them the server exposes 11 resources, one per parameter whose accepted values are a fixed list. Reading one is cheaper than learning the vocabulary from a rejected call, and it costs no credits. Each URI is hasdata://zillow/ .
Only the beginning is shown; read the rest in the repo