Appside Docs and App Catalog

Is Appside Docs and App Catalog MCP server safe?

• No hidden instructions were found in its tool descriptions.
• Its error messages showed no secrets or internal details.
• 6 of its 8 tools are labeled read-only; the others may change or send things.
• Overall it scored 89/100 on 30 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

8 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 (2025-03-26). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
  note
• !
  Every tool is described

  7 warnings

  • !search_docs: Inputs with no description: query
  • !get_sdk_snippet: Inputs with no description: platform
  • !get_sdk_status: Inputs with no description: platform
  • !register_app: Inputs with no description: name, description, category, platforms, appStoreUrl, playStoreUrl
  • !verify_app: Inputs with no description: id
  • !get_app: Inputs with no description: id
  • !search_apps: Inputs with no description: query, category, playable, limit, offset
  note
• !
  Follows MCP best practices (not scored yet)

  1 tip (not scored)

  • !5 tools answer with structured data but don't declare its shape (outputSchema): search_docs, get_sdk_snippet, get_sdk_status, get_pricing, search_apps. If those answers change shape, nothing can catch it; with a schema, every answer is chec
  note
• ✓
  ConnectsConnected in 806 ms
  pass
• ✓
  Lists its toolsFound 8 tools
  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

  • ✓search_docs: Worked (211 ms)
  • ✓get_sdk_snippet: Worked (199 ms)
  • ✓get_sdk_status: Worked (217 ms)
  • ✓get_pricing: Worked (213 ms)
  • ✓get_app: Answered with an error, probably because of our sample input: { "error": "Listing not found", "status": 404 }
  • ✓search_apps: Worked (206 ms)
  • –register_app: Not run: labeled as changing data
  • –verify_app: Not run: labeled as changing data
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓search_docs: Refused missing required input "query" with a clear error
  • ✓search_docs: Refused wrong type for "query" with a clear error
  • ✓get_sdk_snippet: Refused missing required input "platform" with a clear error
  • ✓get_sdk_snippet: Refused wrong type for "platform" with a clear error
  • ✓get_sdk_status: Refused wrong type for "platform" with a clear error
  • ✓get_app: Refused missing required input "id" with a clear error
  • ✓get_app: Refused wrong type for "id" with a clear error
  • ✓search_apps: Refused wrong type for "query" with a clear error
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 806 ms
  • ✓Listing tools took 511 ms
  • ✓Average tool answer: 210 ms
  • ✓get_sdk_status: Slowest tool: get_sdk_status (217 ms)
  pass
• ✓
  No secrets leakedChecked 9 error messages: no secrets or internal details
  pass
• ✓
  Resources and prompts work

  All good (1 resource)

  • ✓Opened 1 of 1 resources
  • ✓An address that does not exist gets a clean "not found" error
  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

• 30 Oct 202689

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Appside Docs and App Catalog, signed in with GitHub, one per person. Reviews never change the score.