YerevanEstate — Yerevan apartment prices

Is YerevanEstate — Yerevan apartment prices MCP server safe?

• None of the hidden-instruction wordings we know were found in its tool descriptions.
• Its error messages showed no secrets or internal details.
• All 14 of its tools are labeled read-only.
• Overall it scored 89/100 on 3 Nov 2026.

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What it can do

14 tools, in the server's own words.

Test results

Safe mode: only tools labeled read-only were run. How the test works

• !
  Ready for the newest MCP version

  1 warning

  • !Uses an older MCP version (2025-11-25). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
  note
• !
  Every tool is described

  7 warnings

  • !estimate_price: Inputs with no description: listingType
  • !search_listings: Inputs with no description: listingType, rooms, minSqm, maxSqm, newConstruction, sort, limit, offset
  • !get_price_drops: Inputs with no description: listingType, rooms, minDropPct, days, limit
  • !estimate_address: Inputs with no description: listingType, rooms, floor, renovation, newBuild, material, elevator
  • !get_area_stats: Inputs with no description: lat, lng, radiusM
  • !search: Inputs with no description: query
  • !fetch: Inputs with no description: id
  note
• !
  Follows MCP best practices (not scored yet)

  3 tips (not scored)

  • !Very common tool names: search, fetch. Next to other servers' tools the AI may mix them up; a short prefix helps (like "github_search" instead of "search").
  • !14 tools don't say whether they reach outside services like the web (openWorldHint): get_market_overview, get_district, estimate_price, get_price_history, get_rental_yields, get_deals and 8 more
  • !9 tools answer with structured data but don't declare its shape (outputSchema): get_market_overview, get_rental_yields, get_deals, search_listings, get_price_drops, get_area_stats and 3 more. If those answers change shape, nothing can catch
  note
• ✓
  ConnectsConnected in 623 ms
  pass
• ✓
  Lists its toolsFound 14 tools
  pass
• ✓
  Tools are labeled safe or dangerousEvery tool has a safety label
  pass
• ✓
  No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
  pass
• ✓
  Tools work with good inputs

  All good

  • ✓get_market_overview: Worked (131 ms)
  • ✓get_district: Answered with an error, probably because of our sample input: {"error":"Unknown district \"test\". Use one of: Ajapnyak, Arabkir, Avan, Davtashen, Erebuni, Kanaker-Zeytun, Kentron, Malatia-Sebastia, No…
  • ✓get_price_history: Answered with an error, probably because of our sample input: {"error":"Unknown district \"test\""}
  • ✓get_rental_yields: Worked (132 ms)
  • ✓get_deals: Worked (161 ms)
  • ✓search_listings: Worked (1.1 s)
  • ✓get_price_drops: Worked (1.1 s)
  • ✓get_street: Answered with an error, probably because of our sample input: {"error":"Street \"test\" not found"}
  • and 6 more
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓get_district: Refused missing required input "district" with a clear error
  • ✓get_district: Refused wrong type for "district" with a clear error
  • ✓get_price_history: Refused missing required input "district" with a clear error
  • ✓get_price_history: Refused wrong type for "district" with a clear error
  • ✓get_rental_yields: Refused wrong type for "constructionType" with a clear error
  • ✓get_deals: Refused wrong type for "district" with a clear error
  • ✓search_listings: Refused wrong type for "district" with a clear error
  • ✓get_price_drops: Refused wrong type for "district" with a clear error
  • and 12 more
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 623 ms
  • ✓Listing tools took 147 ms
  • ✓Average tool answer: 377 ms
  • ✓get_price_drops: Slowest tool: get_price_drops (1.1 s)
  pass
• ✓
  No secrets leakedChecked 24 error messages: no secrets or internal details
  pass
• ✓
  Resources and prompts work

  All good (1 resource, 3 prompts)

  • ✓Opened 1 of 1 resources
  • ✓An address that does not exist gets a clean "not found" error
  • ✓Opened 3 of 3 prompts
  pass
• –
  Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
  not tested

Test it yourself

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Score over time

• 3 Nov 202689

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use YerevanEstate — Yerevan apartment prices, signed in with GitHub, one per person. Reviews never change the score.