io.github.IsaiahDupree/realtystack-mcp
REMOTE · REALTYSTACK-MCP.VERCEL.APP · SCANNED SEP 21
U.S. real-estate data: property records, AVM value + rent estimates, sale/rental listings.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability62
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1986 tokens (~331/item across 6 items; 6 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 6 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.IsaiahDupree/realtystack-mcp server?
io.github.IsaiahDupree/realtystack-mcp is a hosted endpoint at https://realtystack-mcp.vercel.app/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · realtystack-mcp.vercel.app
claude mcp add --transport http isaiahdupree-realtystack-mcp 'https://realtystack-mcp.vercel.app/mcp'
{
"mcpServers": {
"isaiahdupree-realtystack-mcp": {
"url": "https://realtystack-mcp.vercel.app/mcp"
}
}
} {
"servers": {
"isaiahdupree-realtystack-mcp": {
"type": "http",
"url": "https://realtystack-mcp.vercel.app/mcp"
}
}
} [mcp_servers.isaiahdupree-realtystack-mcp] url = "https://realtystack-mcp.vercel.app/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"isaiahdupree-realtystack-mcp": {
"type": "remote",
"url": "https://realtystack-mcp.vercel.app/mcp",
"enabled": true
}
}
} openclaw mcp add isaiahdupree-realtystack-mcp --url 'https://realtystack-mcp.vercel.app/mcp' --transport streamable-http
mcp_servers:
isaiahdupree-realtystack-mcp:
url: "https://realtystack-mcp.vercel.app/mcp" {
"McpServers": {
"isaiahdupree-realtystack-mcp": {
"Transport": "http",
"Url": "https://realtystack-mcp.vercel.app/mcp"
}
}
} assistant mcp add isaiahdupree-realtystack-mcp -t streamable-http -u 'https://realtystack-mcp.vercel.app/mcp'
{
"mcpServers": {
"isaiahdupree-realtystack-mcp": {
"type": "http",
"url": "https://realtystack-mcp.vercel.app/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 31 Aug 26 0
- Stability: 0.97 → pass security
- 30 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Aug 26 +2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 2 Aug 26 0
- Stability: unverified → 0.03 ▲ functional
- 1 Aug 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Probed https://realtystack-mcp.vercel.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.vercel.app | CN=WR1,O=Google Trust Services,C=US | 29 Aug 2026 | 27 Nov 2026 | RSA 2048 | SHA256-RSA | f7911168ffa7d0f4135e24792e7a52a8 |
| SANs: *.vercel.app | ||||||
| CN=WR1,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7fd9e2c2d2048a0474b627a26d0868a7 |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of realtystack-mcp.vercel.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| vercel.app. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://realtystack-mcp.vercel.app/mcp | Verified | 200 | |
| http (plaintext) | http://realtystack-mcp.vercel.app/mcp | HTTPS enforced | 308 | https://realtystack-mcp.vercel.app/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
avm_rent AVM long-term-rent estimate with comparables ~301
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Subject property address. Required unless latitude+longitude are given. e.g. "5500 Grand Lake Dr, San Antonio, TX, 78244". |
| bathrooms | number | – | Subject bathroom count; supports fractions. |
| bedrooms | number | – | Subject bedroom count; 0 indicates a studio. |
| compCount | integer | – | Number of comparable rentals to use in the estimate. Default 15. |
| daysOld | integer | – | Max days since comparable rentals were last seen (min 1). |
| latitude | number | – | Subject latitude; alternative to address (requires longitude). |
| longitude | number | – | Subject longitude; alternative to address (requires latitude). |
| lookupSubjectAttributes | boolean | – | When true, RentCast looks up any missing subject attributes from its records. Default true. |
| maxRadius | number | – | Max distance between comparables and subject, in miles. |
| propertyType | string | – | Subject property type; improves comparable selection. |
| squareFootage | number | – | Subject living-area square footage. |
No output schema declared.
No examples provided.
avm_value AVM sale-value estimate with comparables ~329
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Subject property address. Required unless latitude+longitude are given. e.g. "5500 Grand Lake Dr, San Antonio, TX, 78244". |
| bathrooms | number | – | Subject bathroom count; supports fractions. |
| bedrooms | number | – | Subject bedroom count; 0 indicates a studio. |
| compCount | integer | – | Number of comparables to use in the estimate. Default 15. |
| daysOld | integer | – | Max days since comparable listings were last seen (min 1). |
| latitude | number | – | Subject latitude; alternative to address (requires longitude). |
| longitude | number | – | Subject longitude; alternative to address (requires latitude). |
| lookupSubjectAttributes | boolean | – | When true, RentCast looks up any missing subject attributes from its records. Default true. |
| maxRadius | number | – | Max distance between comparables and subject, in miles. |
| propertyType | string | – | Subject property type; improves comparable selection. |
| squareFootage | number | – | Subject living-area square footage. |
No output schema declared.
No examples provided.
get_property Get one property record by id ~114
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | 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". |
No output schema declared.
No examples provided.
search_properties Search property records ~435
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | 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". |
| bathrooms | string | – | Bathroom count; supports fractions, ranges, and multiple values. |
| bedrooms | string | – | Bedroom count; supports ranges and multiple values. |
| city | string | – | City name; combine with state (and optionally zipCode) for an area search. |
| includeTotalCount | boolean | – | When true, RentCast also returns the total matching count. Default false. |
| latitude | number | – | Latitude of the search center; requires longitude and radius. |
| limit | integer | – | Max records to return per page. Default 50. |
| longitude | number | – | Longitude of the search center; requires latitude and radius. |
| lotSize | string | – | Lot size in square feet; supports ranges and multiple values. |
| offset | integer | – | Number of records to skip, for pagination. Default 0. |
| propertyType | string | – | Filter by property type. |
| radius | number | – | Search radius in miles (max 100); used with latitude/longitude. |
| saleDateRange | string | – | Days since last sale (min 1) — restricts to properties last sold within that window. |
| squareFootage | string | – | Living-area square footage; supports ranges and multiple values. |
| state | string | – | 2-character state abbreviation, e.g. TX. |
| yearBuilt | string | – | Year built; supports ranges and multiple values. |
| zipCode | string | – | 5-digit ZIP code. |
No output schema declared.
No examples provided.
search_rental_listings Search active (or inactive) long-term rental listings ~391
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Full address to match a specific listing. |
| bathrooms | string | – | Bathroom count; supports fractions, ranges, and multiple values. |
| bedrooms | string | – | Bedroom count; supports ranges and multiple values. |
| city | string | – | City name; combine with state for an area search. |
| daysOld | string | – | Max days since the listing was last seen (min 1). |
| includeTotalCount | boolean | – | When true, RentCast also returns the total matching count. Default false. |
| latitude | number | – | Latitude of the search center; requires longitude and radius. |
| limit | integer | – | Max listings to return per page. Default 50. |
| longitude | number | – | Longitude of the search center; requires latitude and radius. |
| lotSize | string | – | Lot size in square feet; supports ranges and multiple values. |
| offset | integer | – | Number of listings to skip, for pagination. Default 0. |
| price | string | – | Listed rent; supports ranges and multiple values. |
| propertyType | string | – | Filter by property type. |
| radius | number | – | Search radius in miles (max 100); used with latitude/longitude. |
| squareFootage | string | – | Living-area square footage; supports ranges and multiple values. |
| state | string | – | 2-character state abbreviation. |
| status | string | – | Listing status to return; defaults to Active. |
| yearBuilt | string | – | Year built; supports ranges and multiple values. |
| zipCode | string | – | 5-digit ZIP code. |
No output schema declared.
No examples provided.
search_sale_listings Search active (or inactive) sale listings ~416
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Full address to match a specific listing. |
| bathrooms | string | – | Bathroom count; supports fractions, ranges, and multiple values. |
| bedrooms | string | – | Bedroom count; supports ranges and multiple values. |
| city | string | – | City name; combine with state for an area search. |
| daysOld | string | – | Max days since the listing was last seen (min 1). |
| includeTotalCount | boolean | – | When true, RentCast also returns the total matching count. Default false. |
| latitude | number | – | Latitude of the search center; requires longitude and radius. |
| limit | integer | – | Max listings to return per page. Default 50. |
| longitude | number | – | Longitude of the search center; requires latitude and radius. |
| lotSize | string | – | Lot size in square feet; supports ranges and multiple values. |
| offset | integer | – | Number of listings to skip, for pagination. Default 0. |
| price | string | – | Listed price; supports ranges and multiple values. |
| propertyType | string | – | Filter by property type. |
| radius | number | – | Search radius in miles (max 100); used with latitude/longitude. |
| squareFootage | string | – | Living-area square footage; supports ranges and multiple values. |
| state | string | – | 2-character state abbreviation. |
| status | string | – | Listing status to return; defaults to Active. |
| yearBuilt | string | – | Year built; supports ranges and multiple values. |
| zipCode | string | – | 5-digit ZIP code. |
No output schema declared.
No examples provided.
What is the io.github.IsaiahDupree/realtystack-mcp server?
io.github.IsaiahDupree/realtystack-mcp is listed in the public MCP registry as io.github.IsaiahDupree/realtystack-mcp. U.S. real-estate data: property records, AVM value + rent estimates, sale/rental listings. This page covers its hosted endpoint (https://realtystack-mcp.vercel.app/mcp).
Is the io.github.IsaiahDupree/realtystack-mcp server safe to use?
io.github.IsaiahDupree/realtystack-mcp scores 85 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.IsaiahDupree/realtystack-mcp server expose?
io.github.IsaiahDupree/realtystack-mcp exposes 6 tools: search_properties, get_property, avm_value, avm_rent, search_sale_listings, search_rental_listings. Their descriptions and schemas cost roughly 1,986 tokens of context every time the server is loaded.
Does the io.github.IsaiahDupree/realtystack-mcp server require authentication?
No. We connected to io.github.IsaiahDupree/realtystack-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the io.github.IsaiahDupree/realtystack-mcp server still maintained?
io.github.IsaiahDupree/realtystack-mcp is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.