contboxx Procurement

Is contboxx Procurement 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.
• 5 of its 7 tools are labeled read-only; the others may change or send things.
• Overall it scored 88/100 on 1 Nov 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

7 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

  5 warnings

  • !recommend_plan: Inputs with no description: screens, content, locations, departure_stations, dpa_requests_per_day
  • !calculate_price: Inputs with no description: plan, period, zip
  • !create_quote: Inputs with no description: plan, period, zip, language
  • !get_quote_status: Inputs with no description: id
  • !request_enterprise_quote: Inputs with no description: email, company, name, language, screens, locations, content, dpa, term_months, payment, e_invoice, leitweg_id, po_number, deadline, message
  note
• ✓
  ConnectsConnected in 1.1 s
  pass
• ✓
  Lists its toolsFound 7 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_catalog: Worked (248 ms)
  • ✓recommend_plan: Worked (135 ms)
  • ✓calculate_price: Answered with an error, probably because of our sample input: { "error": "The arguments do not match the input schema.", "code": "INVALID_ARGUMENTS", "issues": [ { "path": "country", "message": "Too bi…
  • ✓get_quote_status: Answered with an error, probably because of our sample input: { "error": "Unknown quote.", "code": "QUOTE_NOT_FOUND" } {"error":"Unknown quote.","code":"QUOTE_NOT_FOUND"}
  • ✓get_trust_documents: Worked (129 ms)
  • –create_quote: Not run: labeled as changing data
  • –request_enterprise_quote: Not run: labeled as changing data
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓recommend_plan: Refused missing required input "screens" with a clear error
  • ✓recommend_plan: Refused wrong type for "screens" with a clear error
  • ✓calculate_price: Refused missing required input "plan" with a clear error
  • ✓calculate_price: Refused wrong type for "plan" with a clear error
  • ✓get_quote_status: Refused missing required input "id" with a clear error
  • ✓get_quote_status: Refused wrong type for "id" with a clear error
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 1.1 s
  • ✓Listing tools took 130 ms
  • ✓Average tool answer: 154 ms
  • ✓get_catalog: Slowest tool: get_catalog (248 ms)
  pass
• ✓
  No secrets leakedChecked 12 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

Test it yourself

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Score over time

• 1 Nov 202688

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use contboxx Procurement, signed in with GitHub, one per person. Reviews never change the score.