Loading…
AI-native real estate discovery from House 'N' Stars, with structured property search and market intelligence.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The hns-chatgpt-app MCP server exposes 5 tools, focused primarily on general-purpose capabilities. Its published description reads: "AI-native real estate discovery from House 'N' Stars, with structured property search and market intelligence". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates hns-chatgpt-app F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Hidden instructions in a tool description" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check hns-chatgpt-app's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add hns-chatgpt-app to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://hns-chatgpt-app.onrender.com/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
Preferred HOUSE N STARS property search tool. Search real luxury real estate listings from HOUSE N STARS using server-side WordPress search across the full HNS property database. Use the explicit tran
Legacy compatibility tool for searching HOUSE N STARS properties. Prefer search_hns_properties for new property searches, especially when the user asks for properties for sale or for rent because sear
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: search_hns_properties
A tool description contains imperative text aimed at the model (e.g. "ignore previous", "before answering read …").
te, or similar. Do not mention API status, connector internals, filters, diagnRecommendationRemove model-directed instructions from tool descriptions.
tool: search_hns_properties
A tool description tries to alter the model’s use of another tool.
le. Do not call get_property automatically for each row. Never collapse theRecommendationDescriptions must describe only their own tool.
tool: search_hns_properties
A database tool exposes a query/sql parameter that is a free-form string with no allow-list or parameterisation constraint — a raw-string injection surface. A tool exposing structured filters or an `enum` of named queries does not fire.
unconstrained query parameter "query"RecommendationExpose parameterised operations instead of a raw query string; never build queries from unvalidated model output.
tool: search_properties
A tool description tries to alter the model’s use of another tool.
perties. Prefer search_hns_properties for new property searches, especially when theRecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
tool: search_hns_properties
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: search_properties
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_property
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: get_hns_dataset_overview
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
tool: hns_api_status
The server advertises open-world / broadly-scoped capabilities.
annotations.openWorldHint = trueRecommendationScope tools to the minimum needed.
Vantaj uptime monitoring via MCP — manage monitors, heartbeats, incidents, and status pages.
Unified gateway to Algeria's TKAWEN ecosystem: commerce, certification, and AI tools.
Provides access to the Cohereon Doctrine AI safety framework with governance components, tiered access, and agent onboarding.
Agentic rails for complex workflows with receipts, fees, and MCP tool access.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Structural TC39 spec lookup for ECMA-262 and ECMA-402 in AI agents, SHA-pinned and offline-first.
Retrieve one real HOUSE N STARS property by exact numeric ID or exact slug. For normal user-facing answers, summarize the property cleanly. Never add Technical check, Result check, API check, connecto
Explain what the HOUSE N STARS ChatGPT connector provides as a read-only AI-native luxury real estate dataset. Use this when the user asks what HOUSE N STARS covers, what data the app can access, whet
Check whether the HOUSE N STARS WordPress property API is reachable through the Render MCP server.