Skills/PyPI/real-estate-data-mcp-server

real-estate-data-mcp-server@0.1.0

VERIFIED· not started

Publisher claims: "MCP server providing US real estate data — housing stats, demographics, amenities, and area comparisons via Census ACS and OpenStreetMap" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher aiagentkarl · publishing for 242 daysInstalls 52Last detonated 1 h ago
$claude mcp add real-estate-data-mcp-server -- uvx real-estate-data-mcp-server
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
CENSUS_API_KEY
Where it talks to
no vendor host named in the codeAlso census.gov, openstreetmap.org, overpass-api.de — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names census.gov, openstreetmap.org, overpass-api.de as well as its own vendor. The guard injects CENSUS_API_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx real-estate-data-mcp-server

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-15 and scored it 93/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.2sprocessdependency install exit 1 ·
0.2sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.2sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

MEDIUM
MCP server using network transport (SSE/HTTP)src/config.py:21 · MCP server using network transport (SSE/HTTP) — data sent over networkUSER_AGENT = "RealEstateMCPServer/0.1.0 (https://github.com/AiAgentKarl/real-estate-data-mcp-server)"Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

No other findings across 1,304 lines in 12 files.

Cost to the agent

Instructions loaded
≈78 tok
1 file · 12 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for real-estate-data-mcp-server@0.1.0 as of 45 min ago. This is the package itself, not its dependencies.