Fetch and follow the instructions at https://qamcp.dev/setup.md to test my MCP server.Your AI finds your server in your project, tests it with QAmcp, explains what's wrong in plain words, fixes it with your OK, and tests again. Read the instructions
Directory / MatterCatalog
MatterCatalog
by mattercatalog.com · https://mattercatalog.com/api/mcp?src=mcp-registry
Is a smart home device Matter certified? CSA certificates, networks, platforms and US stores.
11 of 11 checks · 8 Nov 2026
At a glance
- Runs where
- On their server. What you send to it goes to them.
- What you need
- Nothing: it answered without a login
- Tools
- 5 tools
- Its own safety labels
- 5 read-only
- Memory it takes
- About 1,500 tokens of your AI's memory, just for its tool descriptions
- Largest answer
- About 5.1 KB in our test
- Speed
- Average answer in our test: 274 ms
Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 8 Nov 2026.
Is MatterCatalog MCP server safe?
- None of the hidden-instruction wordings we know were found in its 5 tool descriptions.
- Its error messages showed no secrets or internal details.
- All 5 of its tools are labeled read-only.
- Overall it scored 100/100 on 8 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 this test does not check
- Its source code and packages.
- What a tool quietly does behind the scenes, such as writing a file or calling another service.
- Instructions hidden inside live tool answers. We only look for those in tool descriptions.
- Hidden instructions worded in a way our list doesn't know yet.
- Tools that could change something. Those are read, never run.
What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection
Known security advisories
It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.
What it can do
5 tools, in the server's own words.
check_matter_certificationread-onlyChecks whether a product holds a Matter certificate on the CSA (Connectivity Standards Alliance) Distributed Compliance Ledger, using MatterCatalog's published…
find_matter_devicesread-onlyLists Matter smart home products in MatterCatalog's catalog by category, platform, network and brand, with one line of facts each: the product page's certifica…
where_to_buyread-onlyNames the stores MatterCatalog's product page links for one product (store links matched to the exact model, pack and region), with the product's certification…
compareread-onlyCompares two products from MatterCatalog's catalog side by side: brand, category, the product page's certification answer with certificate and date, CSA device…
catalog_statsread-onlyMatterCatalog's dated figures as sentences that carry their own date: how many Matter certified product models and companies are on the CSA Distributed Complia…
Test results
Safe mode: only tools labeled read-only were run. How the test works
- ✓ConnectsConnected in 261 mspass
- ✓Ready for the newest MCP versionUses the latest MCP version (2026-07-28)pass
- ✓Lists its toolsFound 5 toolspass
- ✓Every tool is describedAll 5 tools and their inputs are describedpass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓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 inputspass
All good
- ✓check_matter_certification: Worked (349 ms)
- ✓find_matter_devices: Worked (164 ms)
- ✓where_to_buy: Worked (330 ms)
- ✓compare: Answered with an error, probably because of our sample input: Both names match the same product (Laticrete STRATA\_HEAT Smart LCD Thermostat 0804-0404-TW). Name two different products.
- ✓catalog_stats: Worked (197 ms)
- ✓Bad inputs give a clean errorpass
All good
- ✓check_matter_certification: Refused missing required input "query" with a clear error
- ✓check_matter_certification: Refused wrong type for "query" with a clear error
- ✓find_matter_devices: Refused wrong type for "category" with a clear error
- ✓where_to_buy: Refused missing required input "product" with a clear error
- ✓where_to_buy: Refused wrong type for "product" with a clear error
- ✓compare: Refused missing required input "a" with a clear error
- ✓compare: Refused wrong type for "a" with a clear error
- ✓Fast enoughpass
All good
- ✓Connecting took 261 ms
- ✓Listing tools took 344 ms
- ✓Average tool answer: 274 ms
- ✓check_matter_certification: Slowest tool: check_matter_certification (349 ms)
- ✓No secrets leakedChecked 8 error messages: no secrets or internal detailspass
- ✓Follows MCP best practices (not scored yet)Tool names, safety labels and tool list size follow the MCP guidepass
- –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
Free and open source. Same checks, same score.
npx qamcp-cli https://mattercatalog.com/api/mcp?src=mcp-registryShow this score on GitHub
Free for every server in the directory. Paste this into your README: the badge shows the score from our latest test.
[](https://qamcp.dev/s/com-mattercatalog-catalog.html)Score over time
- 8 Nov 2026100
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use MatterCatalog, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. Free for 1 server, no card.
Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works