HemmaBo Host Booking Engine

Is HemmaBo Host Booking Engine MCP server safe?

• No hidden instructions were found in its tool descriptions.
• Its error messages showed no secrets or internal details.
• All 6 of its tools are labeled read-only.
• Overall it scored 91/100 on 29 Oct 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What it can do

6 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
• !
  Resources and prompts work

  1 warning (1 resource, 2 prompts)

  • !trip_plan: Doesn't complain when the required input destination, checkIn, checkOut, guests is missing.
  • and 3 more
  note
• ✓
  ConnectsConnected in 568 ms
  pass
• ✓
  Lists its toolsFound 6 tools
  pass
• ✓
  Every tool is describedAll 6 tools and their inputs are described
  pass
• ✓
  Tools are labeled safe or dangerousEvery tool has a safety label
  pass
• ✓
  No hidden instructionsNo hidden instructions found in tool descriptions
  pass
• ✓
  Tools work with good inputs

  All good

  • ✓hemmabo_search_properties: Answered with an error, probably because of our sample input: {"error":"Invalid arguments for hemmabo_search_properties","details":[{"path":"/checkIn","message":"must match pattern \"^\\d{4}-\\d{2}-\\d…
  • ✓hemmabo_check_availability: Answered with an error, probably because of our sample input: {"error":"Invalid arguments for hemmabo_check_availability","details":[{"path":"/propertyId","message":"must match format \"uuid\""},{"path…
  • ✓hemmabo_check_host_readiness: Worked (151 ms)
  • ✓hemmabo_get_host_onboarding_link: Worked (144 ms)
  • ✓vrp_verify_node: Answered with an error, probably because of our sample input: {"error":"Invalid arguments for vrp_verify_node","details":[{"path":"/domain","message":"must match pattern \"^(?!-)(?:[a-zA-Z0-9-]{1,63}\\…
  • ✓vrp_get_verified_stay_offer: Answered with an error, probably because of our sample input: {"error":"Invalid arguments for vrp_get_verified_stay_offer","details":[{"path":"/domain","message":"must match pattern \"^(?!-)(?:[a-zA-Z0…
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓hemmabo_search_properties: Refused missing required input "guests" with a clear error
  • ✓hemmabo_search_properties: Refused wrong type for "guests" with a clear error
  • ✓hemmabo_check_availability: Refused missing required input "propertyId" with a clear error
  • ✓hemmabo_check_availability: Refused wrong type for "propertyId" with a clear error
  • ✓hemmabo_check_host_readiness: Refused wrong type for "propertyName" with a clear error
  • ✓hemmabo_get_host_onboarding_link: Refused wrong type for "propertyName" with a clear error
  • ✓vrp_verify_node: Refused missing required input "domain" with a clear error
  • ✓vrp_verify_node: Refused wrong type for "domain" with a clear error
  • and 2 more
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 568 ms
  • ✓Listing tools took 51 ms
  • ✓Average tool answer: 169 ms
  • ✓vrp_verify_node: Slowest tool: vrp_verify_node (197 ms)
  pass
• ✓
  No secrets leakedChecked 14 error messages: no secrets or internal details
  pass
• ✓
  Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guide
  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

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Score over time

• 29 Oct 202691

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use HemmaBo Host Booking Engine, signed in with GitHub, one per person. Reviews never change the score.