_ registry / mcp http-sse · checked 1h ago

realtystack

https://realtystack-mcp.vercel.app

Registry code: ca93b655081bf5da

api record

U.S. real-estate data: property records, AVM value + rent estimates, sale/rental listings.

from a public catalogue that lists it, not from the operator

endpoint
https://realtystack-mcp.vercel.app/mcp
protocol
http-sse ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is realtystack live?
Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.
Is realtystack free to use?
Yes — the hub reached it with no key and no payment.
What tools does realtystack have?
6 tools: search_rental_listings, search_sale_listings, search_properties, avm_rent, get_property, avm_value.
Is realtystack safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 99.7%· all time 99.7%

latency
428ms

last good check

priced tools
0

of 6 tools

_ answered our checks, 90 days 297 checks · signed record
  • down → live
  • degraded → live
  • live → degraded· timeout after 20000ms
  • unknown → live
_ what it is for
topic
real estate & construction property & real estate
used for
  • estimate a property's value
  • estimate rent for a property
  • search us property records
  • search sale and rental listings
takes → gives
text, data → data
tools
6 reads
note
resells another provider
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred: the handshake, the tool list and a call without arguments went through with no key and no payment asked; no tool was run

_ what it can do 6 tools
6 never probed 0 of 6 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • search_rental_listings reads unknown 20h ago

    Return a page of long-term (12-month lease) rental listings — same record shape as search_sale_listings (monthly price is the asking rent), but each record is tagged listingKind:"rental-long-term". Same location-pinning rules and 30-minute upstream cache as the sale-listings endpoint.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "city": {
      "type": "string",
      "description": "City name; combine with state for an area search."
    },
    "limit": {
      "type": "integer",
      "maximum": 500,
      "minimum": 1,
      "description": "Max listings to return per page. Default 50."
    },
    "price": {
      "type": "string",
      "description": "Listed rent; supports ranges and multiple values."
    },
    "state": {
      "type": "string",
      "description": "2-character state abbreviation."
    },
    "offset": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "Number of listings to skip, for pagination. Default 0."
    },
    "radius": {
      "type": "number",
      "description": "Search radius in miles (max 100); used with latitude/longitude."
    },
    "status": {
      "enum": [
        "Active",
        "Inactive"
      ],
      "type": "string",
      "description": "Listing status to return; defaults to Active."
    },
    "address": {
      "type": "string",
      "description": "Full address to match a specific listing."
    },
    "daysOld": {
      "type": "string",
      "description": "Max days since the listing was last seen (min 1)."
    },
    "lotSize": {
      "type": "string",
      "description": "Lot size in square feet; supports ranges and multiple values."
    },
    "zipCode": {
      "type": "string",
      "description": "5-digit ZIP code."
    },
    "bedrooms": {
      "type": "string",
      "description": "Bedroom count; supports ranges and multiple values."
    },
    "latitude": {
      "type": "number",
      "description": "Latitude of the search center; requires longitude and radius."
    },
    "bathrooms": {
      "type": "string",
      "description": "Bathroom count; supports fractions, ranges, and multiple values."
    },
    "longitude": {
      "type": "number",
      "description": "Longitude of the search center; requires latitude and radius."
    },
    "yearBuilt": {
      "type": "string",
      "description": "Year built; supports ranges and multiple values."
    },
    "propertyType": {
      "enum": [
        "Single Family",
        "Condo",
        "Townhouse",
        "Manufactured",
        "Multi-Family",
        "Apartment"
      ],
      "type": "string",
      "description": "Filter by property type."
    },
    "squareFootage": {
      "type": "string",
      "description": "Living-area square footage; supports ranges and multiple values."
    },
    "includeTotalCount": {
      "type": "boolean",
      "description": "When true, RentCast also returns the total matching count. Default false."
    }
  }
}
    arguments 98 lines
  • search_sale_listings reads unknown 20h ago

    Return a page of for-sale listings (list price, status, days on market, MLS name/number, listing agent + office contact, and price/status history) for a location. Same location-pinning rules as search_properties (address, city+state(+zipCode), or latitude+longitude+radius). Each record is tagged listingKind:"sale". Listings move faster than records, so these are cached only 30 minutes upstream.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "city": {
      "type": "string",
      "description": "City name; combine with state for an area search."
    },
    "limit": {
      "type": "integer",
      "maximum": 500,
      "minimum": 1,
      "description": "Max listings to return per page. Default 50."
    },
    "price": {
      "type": "string",
      "description": "Listed price; supports ranges and multiple values."
    },
    "state": {
      "type": "string",
      "description": "2-character state abbreviation."
    },
    "offset": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "Number of listings to skip, for pagination. Default 0."
    },
    "radius": {
      "type": "number",
      "description": "Search radius in miles (max 100); used with latitude/longitude."
    },
    "status": {
      "enum": [
        "Active",
        "Inactive"
      ],
      "type": "string",
      "description": "Listing status to return; defaults to Active."
    },
    "address": {
      "type": "string",
      "description": "Full address to match a specific listing."
    },
    "daysOld": {
      "type": "string",
      "description": "Max days since the listing was last seen (min 1)."
    },
    "lotSize": {
      "type": "string",
      "description": "Lot size in square feet; supports ranges and multiple values."
    },
    "zipCode": {
      "type": "string",
      "description": "5-digit ZIP code."
    },
    "bedrooms": {
      "type": "string",
      "description": "Bedroom count; supports ranges and multiple values."
    },
    "latitude": {
      "type": "number",
      "description": "Latitude of the search center; requires longitude and radius."
    },
    "bathrooms": {
      "type": "string",
      "description": "Bathroom count; supports fractions, ranges, and multiple values."
    },
    "longitude": {
      "type": "number",
      "description": "Longitude of the search center; requires latitude and radius."
    },
    "yearBuilt": {
      "type": "string",
      "description": "Year built; supports ranges and multiple values."
    },
    "propertyType": {
      "enum": [
        "Single Family",
        "Condo",
        "Townhouse",
        "Manufactured",
        "Multi-Family",
        "Apartment",
        "Land"
      ],
      "type": "string",
      "description": "Filter by property type."
    },
    "squareFootage": {
      "type": "string",
      "description": "Living-area square footage; supports ranges and multiple values."
    },
    "includeTotalCount": {
      "type": "boolean",
      "description": "When true, RentCast also returns the total matching count. Default false."
    }
  }
}
    arguments 99 lines
  • search_properties reads unknown 13h ago

    Search normalized U.S. property records (owner, structural attributes, tax assessments, tax + sale history) by location. Pin a location one of three ways: a full address, a city+state(+zipCode), or a latitude+longitude point with a radius (miles). All other parameters narrow the result set. Records are cached 24h upstream, so meta.cached may be true on repeat queries.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "city": {
      "type": "string",
      "description": "City name; combine with state (and optionally zipCode) for an area search."
    },
    "limit": {
      "type": "integer",
      "maximum": 500,
      "minimum": 1,
      "description": "Max records to return per page. Default 50."
    },
    "state": {
      "type": "string",
      "description": "2-character state abbreviation, e.g. TX."
    },
    "offset": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "Number of records to skip, for pagination. Default 0."
    },
    "radius": {
      "type": "number",
      "description": "Search radius in miles (max 100); used with latitude/longitude."
    },
    "address": {
      "type": "string",
      "description": "Full address, format \"Street, City, State, Zip\". Alternative to city/state/zipCode or lat+long. e.g. \"5500 Grand Lake Dr, San Antonio, TX, 78244\"."
    },
    "lotSize": {
      "type": "string",
      "description": "Lot size in square feet; supports ranges and multiple values."
    },
    "zipCode": {
      "type": "string",
      "description": "5-digit ZIP code."
    },
    "bedrooms": {
      "type": "string",
      "description": "Bedroom count; supports ranges and multiple values."
    },
    "latitude": {
      "type": "number",
      "description": "Latitude of the search center; requires longitude and radius."
    },
    "bathrooms": {
      "type": "string",
      "description": "Bathroom count; supports fractions, ranges, and multiple values."
    },
    "longitude": {
      "type": "number",
      "description": "Longitude of the search center; requires latitude and radius."
    },
    "yearBuilt": {
      "type": "string",
      "description": "Year built; supports ranges and multiple values."
    },
    "propertyType": {
      "enum": [
        "Single Family",
        "Condo",
        "Townhouse",
        "Manufactured",
        "Multi-Family",
        "Apartment",
        "Land"
      ],
      "type": "string",
      "description": "Filter by property type."
    },
    "saleDateRange": {
      "type": "string",
      "description": "Days since last sale (min 1) — restricts to properties last sold within that window."
    },
    "squareFootage": {
      "type": "string",
      "description": "Living-area square footage; supports ranges and multiple values."
    },
    "includeTotalCount": {
      "type": "boolean",
      "description": "When true, RentCast also returns the total matching count. Default false."
    }
  }
}
    arguments 87 lines
  • avm_rent reads unknown 20h ago

    Run RentCast's automated model for long-term (12-month lease) rent and return a point rent estimate, a rentRangeLow/rentRangeHigh band, the resolved subjectProperty, and comparables[] — recent comparable rentals each scored with distance and correlation. Same subject-pinning rules as avm_value (address or latitude+longitude, plus optional subject attributes). Cached 6h upstream.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "address": {
      "type": "string",
      "description": "Subject property address. Required unless latitude+longitude are given. e.g. \"5500 Grand Lake Dr, San Antonio, TX, 78244\"."
    },
    "daysOld": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": -9007199254740991,
      "description": "Max days since comparable rentals were last seen (min 1)."
    },
    "bedrooms": {
      "type": "number",
      "description": "Subject bedroom count; 0 indicates a studio."
    },
    "latitude": {
      "type": "number",
      "description": "Subject latitude; alternative to address (requires longitude)."
    },
    "bathrooms": {
      "type": "number",
      "description": "Subject bathroom count; supports fractions."
    },
    "compCount": {
      "type": "integer",
      "maximum": 25,
      "minimum": 5,
      "description": "Number of comparable rentals to use in the estimate. Default 15."
    },
    "longitude": {
      "type": "number",
      "description": "Subject longitude; alternative to address (requires latitude)."
    },
    "maxRadius": {
      "type": "number",
      "description": "Max distance between comparables and subject, in miles."
    },
    "propertyType": {
      "enum": [
        "Single Family",
        "Condo",
        "Townhouse",
        "Manufactured",
        "Multi-Family",
        "Apartment"
      ],
      "type": "string",
      "description": "Subject property type; improves comparable selection."
    },
    "squareFootage": {
      "type": "number",
      "description": "Subject living-area square footage."
    },
    "lookupSubjectAttributes": {
      "type": "boolean",
      "description": "When true, RentCast looks up any missing subject attributes from its records. Default true."
    }
  }
}
    arguments 62 lines
  • get_property reads unknown 13h ago

    Full detail for a single property record, keyed by its RentCast id (the same id returned on every search_properties, avm_value, avm_rent, and listings record). Returns 404 if no property matches the id. Cached 24h upstream.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "RentCast property id (from a prior search_properties, avm_value/avm_rent, or listings response), e.g. \"5500-Grand-Lake-Dr,-San-Antonio,-TX-78244\"."
    }
  }
}
    arguments 13 lines
  • avm_value reads unknown 13h ago

    Run RentCast's automated valuation model for a subject property and return a point price estimate, a priceRangeLow/priceRangeHigh band, the resolved subjectProperty, and comparables[] — recent comparable sales each scored with a distance (miles) and correlation (0-1 similarity). Pin the subject with either address or latitude+longitude; when subject attributes are unknown, supply propertyType/bedrooms/bathrooms/squareFootage (or leave lookupSubjectAttributes true to have RentCast fill them). Cached 6h upstream.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "address": {
      "type": "string",
      "description": "Subject property address. Required unless latitude+longitude are given. e.g. \"5500 Grand Lake Dr, San Antonio, TX, 78244\"."
    },
    "daysOld": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": -9007199254740991,
      "description": "Max days since comparable listings were last seen (min 1)."
    },
    "bedrooms": {
      "type": "number",
      "description": "Subject bedroom count; 0 indicates a studio."
    },
    "latitude": {
      "type": "number",
      "description": "Subject latitude; alternative to address (requires longitude)."
    },
    "bathrooms": {
      "type": "number",
      "description": "Subject bathroom count; supports fractions."
    },
    "compCount": {
      "type": "integer",
      "maximum": 25,
      "minimum": 5,
      "description": "Number of comparables to use in the estimate. Default 15."
    },
    "longitude": {
      "type": "number",
      "description": "Subject longitude; alternative to address (requires latitude)."
    },
    "maxRadius": {
      "type": "number",
      "description": "Max distance between comparables and subject, in miles."
    },
    "propertyType": {
      "enum": [
        "Single Family",
        "Condo",
        "Townhouse",
        "Manufactured",
        "Multi-Family",
        "Apartment",
        "Land"
      ],
      "type": "string",
      "description": "Subject property type; improves comparable selection."
    },
    "squareFootage": {
      "type": "number",
      "description": "Subject living-area square footage."
    },
    "lookupSubjectAttributes": {
      "type": "boolean",
      "description": "When true, RentCast looks up any missing subject attributes from its records. Default true."
    }
  }
}
    arguments 63 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id ca93b655081bf5da.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/ca93b655081bf5da/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/ca93b655081bf5da/badge.svg)](https://brick.blue/agent/ca93b655081bf5da?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.