HouseData MCP server

• Registry namedev.housedata/zillowverified in the MCP registry

The registry name sits under housedata.dev. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-26
• Tools19
• Server calls itselfhousedata-zillow
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 913 ms.

• Its tools do every use case we checked: search listings for sale, rent or sold by zip; pull full property records and Zestimate history by zpid.
• Checked on 1 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
• What an agent can do with it2 of 2 use cases
• Answeredmeasuring1 of the 7 daily checks it takes to print a share
• Median first answer1178 ms
• Space in an agent's context≈ 4,327 tokensthe definitions of all its tools (19), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results0 of 19 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (30%), doing the product's job (25%), definitions (20%), context (10%) and use (15%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• zillow_search_listings

  Listings for a place typed as on Zillow — a city (Austin, TX), a ZIP, a neighborhood or a county — for sale, for rent or recently sold. One row per listing with its zpid, address, price, beds, baths, living area, days on Zillow and…

• zillow_autocomplete_places

  The regions Zillow knows for a partial place name — cities, ZIPs, neighborhoods, counties — each with its region id, type and centre. What a search box needs before zillow_search_listings, and the way to a regionId.

• zillow_region

  A place name resolved to Zillow's region — id, type, parent state and city, centre and the exact bounding rectangle search uses — or a region id described. Give location or regionId.

• zillow_property

  The record for any zpid, listed or off market — every zpid has one. Compact: the headline (status, price, Zestimate, rent Zestimate, address, coordinates, beds, baths, living area, year built, home type, lot, HOA, days on Zillow, hero…

• zillow_property_facts

  The facts for one home: beds, baths, living area, lot, year built, home type, parking, heating and cooling, HOA, price per square foot, and the rest of Zillow's fact sheet — with the current status and price.

• zillow_price_history

  Every listing, price cut, pending, sale and delisting Zillow records for a home, newest first, with the price, the change and the source.

• zillow_tax_history

  Assessed value and tax paid by year for a home, as far back as Zillow records them.

• zillow_schools

  The schools assigned to a home — name, level, grades, distance and GreatSchools rating.

• zillow_scores

  Walk Score, Transit Score and Bike Score for a home's location, with their descriptions.

• zillow_nearby_homes

  Homes Zillow shows near this one, each with zpid, address, price, beds, baths, living area and status.

• zillow_photos

  The photo gallery for a home — one URL per photo, in order, with the hero photo first. size full adds every size Zillow serves for each photo.

• zillow_zestimate

  The Zestimate for any zpid, listed or not: the value with its low and high, the value 30 days ago, the rent Zestimate, and zestimateHistory — one point a month for about ten years — plus the home's price history. Null where Zillow…

• zillow_comps

  The comparable homes Zillow uses to value this one — each with zpid, address, price, beds, baths, living area, distance and sale date where sold.

• zillow_listing_agent

  The listing agent's full profile for a listed home — name, license, phone, email, website, brokerage, bio, social links, Zillow rating and review count — with the broker and the MLS id. Agent fields are null on a home with no active…

• zillow_top_agents

  The agents Zillow ranks around a home by sales in the past year: name, Zillow id, sales count, min/max/average/median sale price, sales in this price range, bio and profile. Who actually sells here.

• zillow_market_stats

  Monthly market statistics for a region, newest first: market temperature with Zillow's buyer/seller label, for-sale inventory, new listings, new pending, median days to pending, and the share sold above and below list — up to 100 months…

• zillow_mortgage_rates

  Today's mortgage rates as Zillow lists them — product (30-year fixed, FHA, VA, 15-year, ARMs), rate and APR, with Zillow's tag for each.

• zillow_building

  A rental building — name, address, description, amenities, unit and floor-plan counts, rent range and photos — by buildingId (from a forRent search row with resultType propertyGroup) or by lat and lng.

• zillow_floor_plans

  Every floor plan of a rental building — name, beds, baths, square feet, rent range, lease term — and the units available under each, with unit number, price, square feet and move-in date. Compact drops photo and tour links; expand true…