HasData Redfin README
The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the HasData Redfin listing page.
Redfin MCP Server
A hosted Model Context Protocol (MCP) server that gives Claude, Cursor, Windsurf and any other MCP client two read-only Redfin tools. Search for-sale, for-rent and sold listings with the filter set Redfin shows a visitor, and read one property page in full, both as structured JSON, with no MLS licence and nothing to host.
It reads public Redfin pages that a signed-out visitor can see.
1,000 free credits every month, no card required, which is 200 Redfin calls at the 5-credit rate.
Contents
- What you need
- Quick start
- Example prompts
- Tools
- Errors and failure paths
- Pricing, free tier and limits
- Tool selection
- How it compares
- FAQ
- HasData links
- Development
- Contributing
- License
What you need
An MCP client and a HasData API key from the dashboard, free to create with no card, and the free tier covers about 200 calls a month at the 5-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/redfin-mcp on npm and hasdata-redfin-mcp on PyPI, shown below.
Quick start
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=redfin |
| 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 Desktop
Settings, then Connectors, then Add custom connector, then paste https://mcp.hasdata.com/mcp?apis=redfin 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/redfin-mcp package is that launcher, and it reads the key from the environment. Add this to claude_desktop_config.json:
For Python instead of Node, swap the launcher for the PyPI package, which uvx runs without a manual install:
Cursor
~/.cursor/mcp.json for every project, or .cursor/mcp.json for one:
Windsurf
~/.codeium/windsurf/mcp_config.json. Windsurf calls the field serverUrl, not url:
VS Code
.vscode/mcp.json in the workspace:
Example prompts
Each of these lands on one tool, or on two in sequence when the second needs the URL the first returns.
- Find three-bedroom houses for sale in 78741 under $500,000 and sort them by price per square foot.
- What sold in Austin in the last three months, and how does that compare with what is listed now?
- Pull the full property page for this Redfin URL and summarise the condition from the description.
- Which rentals in Austin allow dogs and include in-unit laundry?
- Show me for-sale homes in the Austin Independent School District where the assigned elementary school rates 8 or better.
- Find fixer-uppers built before 1970 in this zipcode that have been on Redfin more than 30 days.
A prompt that names a market goes to the search tool. A prompt that hands you a Redfin URL goes straight to the property tool. Searching for a full street address is a third case, covered below, because it answers with one property rather than a list.
Tools
| Tool | What it returns |
|---|---|
hasdata_redfin_listing_getRealEstateListings | Each listing with address, Redfin URL, list price, beds/baths, square footage, lot size, year built, days on market, status, coordinates, photos, MLS number, and HOA; an…. 5 credits a call |
hasdata_redfin_property_getPropertyDetails | Address, list/sold price, price history, Redfin Estimate, beds/baths, square footage, lot size, year built, property type, HOA, days on market, school ratings, tax…. 5 credits a call |
Two tools, 5 credits per successful call.
Get Redfin real estate listings
hasdata_redfin_listing_getRealEstateListings
A page of listings for a location, or one property when the location is a single address.
Two parameters are required, and the rest of the schema mirrors Redfin's own filter panel.
| Parameter | Type | Required | Notes |
|---|---|---|---|
keyword | string | yes | A zipcode, city, neighborhood, school, school district, apartment building name, or a full street address |
type | string | yes | forSale, forRent or sold |
sort | string | recommended, newest, oldest, priceLowToHigh, priceHighToLow, bedrooms, bathrooms, lotSize, squareFeetPrice and more | |
page | number | Result page, starting at 1 |
The filters are named after the nested structure Redfin uses internally, flattened with underscores, so they have to be passed exactly as the schema spells them. price_min_ and price_max_ are the price band, beds_min_ and beds_max_ the bedroom count, monthlyPayment_interestRate_ a mortgage assumption. A doubled underscore marks an array.
The ones worth knowing:
| Parameter | Type | Notes |
|---|---|---|
price_min_ / price_max_ | number | Price band |
beds_min_ / beds_max_ | number | Bedroom count |
baths | string | Minimum baths, one through four, plus oneAndHalf and twoAndHalf |
homeTypes__ | array | house, townhouse, townhome, condo, land, multiFamily, mobile, coOp, apartment, other. Which values apply depends on type |
statusOptions__ | array | active, comingSoon, contingentPending |
listingType_category___ | array | byAgent, byOwnerFsbo, newConstruction, foreclosures |
timeOnRedfin | string | newListing through moreThan45Days |
soldWithinOption | string | Sold window, from lastOneWeek to lastFiveYear. See the warning below |
yearBuilt_min_ / yearBuilt_max_ | string | A year from a fixed ladder, 1940 through 2026 |
forSaleSquareFeet_min_ / _max_ | string | Floor area from a fixed ladder, 750 through 10000 |
lotSize_min_ / lotSize_max_ | string | 2000 sqft through 100 acres, as written |
cost_hoa_ | number | Maximum monthly HOA fee |
cost_priceReduced_ | string | inTheLastDay through moreThan120Days |
homeFeatures_options___ | array | waterfront, hasAView, fireplace, fixerUpper, guestHouse, elevator, greenHome, accessibleHome and more |
homeFeatures_poolType_ | string | privatePool, communityPool, privateOrCommunityPool, noPrivatePool |
homeFeatures_keywordSearch_ | string | Free text against the listing description |
schools_greatSchoolRating_ | number | Minimum GreatSchools rating, 1 to 10 |
transportScores_walkScore_ | number | Minimum walk score, 1 to 100 |
rentalAmenities__ | array | inUnitWasherDryer, parkingAllowed, utilitiesIncluded, furnished, pool and more |
pets__ | array | dogsAllowed, catsAllowed |
moveInDate | string | MM/DD/YYYY |
A market search returns searchInformation with totalResults, a properties array of 40, and pagination with currentPage, nextPage and an otherPages map. A for-sale or sold property carries id, mlsId, url, homeType, status, price, beds, baths, area, yearBuilt, daysOnSite, addressRaw, a parsed address, latitude, longitude, description, atAGlanceFacts and photos.
atAGlanceFacts has two shapes. On a search row it is a list of selling-point strings, and on the property response it is a list of factLabel and factValue pairs, so code that reads one shape breaks on the other.
A rental is a building rather than a home, so type: forRent returns a different shape. price, beds, baths and area each become a { min, max } object across the available units, and the entry adds propertyName, availableUnits, agentEmail and agentPhone while dropping mlsId, homeType, yearBuilt and daysOnSite.
Get Redfin property details
hasdata_redfin_property_getPropertyDetails
One property page in full, by its Redfin URL.
| Parameter | Type | Required | Notes |
|---|---|---|---|
url | string | yes | The Redfin property URL, as the search tool returns it |
Returns a property object. On top of everything the search result carries, it adds propertyDetails, schools, nearby, agentInfo, viewsActivity, openHouseSchedule, updatedAt, a geo object and the full photos collection, which ran to 61 images on the property below.
propertyDetails is the specification block, grouped into parking, interior, exterior, utilities and publicFacts. Each group is an array of labelled sections, and each section is an array of label and value pairs, so it reads as the page presents it rather than as a typed object. Look up a fact by its label instead of by position.
schools.assignedSchools carries the catchment schools with greatSchoolsRating, parentRating, distanceInMiles and a servesHome flag, which is the field that says whether the school actually serves this address.
Errors and failure paths
Plan for these rather than assuming a happy path.
soldWithinOption narrows a sold search to a window, and it needs type: sold to mean anything. The windows nest as you would expect, so a one-week window returns a small fraction of what a one-year window returns for the same market. type: sold without it covers Redfin's own default of the last three months. Sold and for-sale searches return disjoint sets, so a listing never appears in both.
The search tool returns three different shapes, and which one you get depends on the keyword. A market keyword answers with searchInformation, properties and pagination. A full street address or a named building answers with a single property object and no properties array, no searchInformation and no pagination. A rental search answers with the range-shaped entries shown above. Branch on the presence of properties before you iterate it.
totalResults reports the whole set, and a large market runs into the thousands. A page holds forty listings and pagination.otherPages enumerates the rest, which reaches into the hundreds of pages for a city. Deep pages do come back, so paging works, but walking a market end to end is a call per page. Slice by zipcode, price band or home type when the budget matters more than completeness.
Sold search does not give you sold prices as a separate field. price holds whatever the page shows for that status, so a for-sale price and a sold price arrive in the same field. Read status alongside it every time.
The property response carries the history the search does not. priceHistory and taxHistory arrive as event lists, redfinEstimate holds the estimate with the comparables behind it, and propertyDetails groups the assessor-style facts under publicFacts alongside parking, interior, exterior, financial and utilities. None of that is on a search row, so a question about history is a property call.
nearby.pointsOfInterest is nearby places, not comparable sales. Its categories come from a third-party places dataset and are frequently wrong, so a title loan office can arrive tagged as a bar. Use the names and coordinates, and do not trust the category.
openHouseSchedule can be an array holding an empty object when the page has the section but no dates in it. Test the contents, not the length.
brokerPhoneNumber and other agent fields come back as empty strings rather than null. Treat empty string as absent.
Results that carry data also carry a requestMetadata.id worth quoting in support.
Pricing, free tier and limits
Each Redfin tool costs 5 credits per successful call. Response size does not change the price, so a 40-listing page and a single property cost the same.
The free tier is 1,000 credits every month with no card, which is 200 Redfin calls at the base rate. It renews with the billing cycle, so a low-volume agent runs on the free tier indefinitely.
Paid plans start at $59 a month for 200,000 credits, which is 40,000 calls. The unit price falls with volume, from $1.48 per 1,000 calls on the entry plan to $0.60 on Basic and $0.41 across the Growth tiers. Current figures live on the pricing page.
Your plan also sets concurrency. The free tier allows 1 request at a time, Startup 5, Basic 15, and the Growth tiers run from 50 to 500. Retry on the 429 with a backoff in anything unattended, because an agent that walks a list of properties will reach the ceiling before you do.
A request that comes back non-200 is not billed. A successful call that finds nothing is still a call.
Tool selection
Start from what the prompt gives you. A market, a zipcode or a school district goes to the search tool. A Redfin URL goes straight to the property tool. Spending a search call to reach a URL you already have is the most common waste.
Then pick by depth. The search result is enough for ranking, price sweeps and market summaries, and it already carries price, beds, baths, area, year built and days on site. The property tool is the only one that returns the specification block, the assigned schools and the listing agent, and it is worth one call per property you care about rather than one per row.
Filter server-side. The schema mirrors Redfin's filter panel precisely, so a query like "three beds, under $500k, built before 1970, in this zipcode" is one call with four parameters, not a page sweep followed by local filtering.
How it compares
There is no public Redfin API, so the real alternative is an MLS or IDX feed.
| MLS or IDX feed | This server | |
|---|---|---|
| Eligibility | A licensed brokerage or an agent relationship | An API key |
| Setup | Per-MLS application, contract and compliance review | One header |
| Coverage | One MLS per feed, hundreds nationally | Whatever Redfin publishes, in one place |
| Sold data | Full history where the MLS permits it | The recent window Redfin shows |
| Rentals | Often a separate feed or absent | The same tool, with a range shape |
| Redistribution | Contractually restricted | Your responsibility to check |
| Cost | Setup fees plus monthly, per MLS | Paid past the free tier, 5 credits a call |
The row that decides it is eligibility. An MLS feed is the authoritative source and it needs a licence you cannot buy as a developer, which rules it out for research, prototypes and anything an agent does on your behalf. When you are a brokerage with a feed already, the feed is more complete and more current, and you should use it.
FAQ
Is there an official Redfin MCP server?
Redfin does not publish one, and it does not publish a public API either. This one is maintained by HasData and reads public Redfin pages.
What is a Redfin MCP server?
An MCP server exposes tools an AI client can call. This one turns Redfin search results and property pages into JSON an agent can reason over, without a browser or a scraping library in your stack.
Do I need an MLS licence or a Redfin account?
No. The only credential is your HasData key.
Why does searching an address return one property instead of a list?
Because Redfin resolves a full street address to that property's page rather than to a result set. The tool passes that through, so the response holds a single property object in the same shape the property tool returns. It is a useful shortcut when you have an address but not a URL.
How do I pull every listing in a city?
By paging, at a call per page. A city reports its full count in totalResults and hands you forty listings at a time, so a large market is hundreds of calls rather than a single sweep. Cutting the market by zipcode, price band or home type gives the same coverage in fewer, narrower queries, which is usually the better trade.
Can I filter sold listings by date?
Not reliably right now. type: sold works and returns Redfin's default three-month window, but soldWithinOption is not being translated into a filter Redfin accepts, and passing it returns active listings labelled SOLD. Leave it off until that is fixed.
Does it cover rentals?
Yes, through type: forRent. Expect the range shape rather than the single-home shape, because a rental result is a building with several available units.
Can I use this together with other HasData APIs?
Yes. One key covers everything, and one endpoint serves them all through the apis parameter. Point a client at ?apis=redfin,zillow to get both tool sets in one connection, or at mcp.hasdata.com/api/mcp for the full catalogue.
Is HasData affiliated with Redfin?
No. HasData is an independent service and is not affiliated with, endorsed by, or sponsored by Redfin. Redfin is a trademark of its respective owner. The tools work with publicly available data only, and you are responsible for using the results in line with Redfin's terms and the law that applies to you.
Compliance and personal data
Listings carry agent contact details. A for-sale property returns agentInfo with a name and a direct phone number, and a rental returns agentEmail and agentPhone. Those belong to identifiable people, published in a professional capacity, which does not take them out of scope of the GDPR or the CCPA. Marketing to them is regulated separately again, and real estate agents are a common target of exactly that, so check your obligations before you build a contact list. Market analysis does not need those fields at all.
HasData links
- Redfin Scraper API, the REST endpoints behind these tools
- API documentation
- MCP server documentation
- Pricing
- Dashboard
Other HasData MCP servers: Google Search, Google Maps, Google Trends, Google Flights, DuckDuckGo, YouTube, TikTok, Instagram, Amazon, Shopify, Yelp, Zillow, Airbnb, Booking.com, Indeed.
Development
The launcher is a thin stdio bridge to the remote server, so there is nothing to build.
The tests in test/ assert the tool contract, the part that can break without a commit here. They check that ?apis=redfin returns the expected tool count, that no name changed, that every tool still declares its required parameters and carries a description, that the filter enums this README documents are still the ones the schema offers, and that the key in use is actually accepted. That last check calls a tool for real and costs 5 credits, which is the price of a canary that can fail for the right reason.
The contract suite also runs weekly on a schedule, because the upstream tool list can change without anyone touching this repository.
Contributing
A tool table, a response sample or a documented behaviour that does not match reality is worth an issue. There is a template for exactly that. Pull requests are welcome for the same, and for anything in the launcher.
License
MIT, see LICENSE.