Atlasly

Is Atlasly MCP server safe?

• No hidden instructions were found in its tool descriptions.
• Its error messages showed no secrets or internal details.
• 33 of its 35 tools are labeled read-only; the others may change or send things.
• Overall it scored 89/100 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

35 tools, in the server's own words.

and 11 more

Test results

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

• !
  Every tool is described

  17 warnings

  • !view_geojson_file: Inputs with no description: file
  • !open_atlasly_workspace: Inputs with no description: prepared_result_url
  • !get_location_coverage: Inputs with no description: country_code, coordinates
  • !inspect_research_source: Inputs with no description: address, coordinates, country_code, radius_meters, url, quote
  • !prepare_site_research: Inputs with no description: address, coordinates, country_code, radius_meters, question
  • !present_site_research: Inputs with no description: address, coordinates, country_code, radius_meters, question, sources, findings, gaps
  • !export_site_boundary: Inputs with no description: boundary_geojson, format, title
  • !export_site_context: Inputs with no description: address, layers, format, radius_meters, title
  • and 9 more
  note
• !
  Follows MCP best practices (not scored yet)

  1 tip (not scored)

  • !The tool list is about 277 KB (roughly 69k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
  note
• !
  Resources and prompts work

  1 warning (3 resources, 4 templates, 2 prompts)

  • !atlasly-global-context: Could not open it with sample inputs: Invalid arguments for prompt atlasly-global-context: country_code: Too big: expected string to have exactly 2 characters
  • and 7 more
  note
• ✓
  ConnectsConnected in 1.3 s
  pass
• ✓
  Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
  pass
• ✓
  Lists its toolsFound 35 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

  • ✓view_geojson_file: Answered with an error, probably because of our sample input: Input validation error: Invalid arguments for tool view_geojson_file: file.name: Invalid string: must match pattern /\.geojson$/i
  • ✓get_location_coverage: Answered with an error, probably because of our sample input: Input validation error: Invalid arguments for tool get_location_coverage: country_code: Invalid string: must match pattern /^[a-z]{2}$/i
  • ✓inspect_research_source: Answered with an error, probably because of our sample input: {"status":"error","headline":"Choose the research location","executive_summary":"Supply a resolved site_ref, address with country, or known…
  • ✓prepare_site_research: Answered with an error, probably because of our sample input: {"status":"error","headline":"Choose the research location","executive_summary":"Supply a resolved site_ref, address with country, or known…
  • ✓present_site_research: Answered with an error, probably because of our sample input: {"status":"error","headline":"Choose the research location","executive_summary":"Supply a resolved site_ref, address with country, or known…
  • ✓export_site_boundary: Answered with an error, probably because of our sample input: {"status":"error","headline":"The boundary needs correction","executive_summary":"Provide a GeoJSON Polygon, MultiPolygon, or Feature conta…
  • ✓export_site_context: Answered with an error, probably because of our sample input: {"status":"error","headline":"Choose the context location","executive_summary":"Supply an address with country, WGS84 coordinates with coun…
  • ✓search_tools: Worked (284 ms)
  • and 27 more
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓view_geojson_file: Refused missing required input "file" with a clear error
  • ✓view_geojson_file: Refused wrong type for "file" with a clear error
  • ✓get_location_coverage: Refused missing required input "country_code" with a clear error
  • ✓get_location_coverage: Refused wrong type for "country_code" with a clear error
  • ✓inspect_research_source: Refused missing required input "url" with a clear error
  • ✓inspect_research_source: Refused wrong type for "url" with a clear error
  • ✓prepare_site_research: Refused missing required input "question" with a clear error
  • ✓prepare_site_research: Refused wrong type for "question" with a clear error
  • and 32 more
  pass
• ✓
  Fast enough

  All good

  • ✓Connecting took 1.3 s
  • ✓Listing tools took 161 ms
  • ✓Average tool answer: 218 ms
  • ✓search_aec_knowledge: Slowest tool: search_aec_knowledge (1.1 s)
  pass
• ✓
  No secrets leakedChecked 84 error messages: no secrets or internal details
  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

• 29 Oct 202689

One test so far. New tests will show here.

Reviews

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