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Directory / Assay Systems procurement register
Assay Systems procurement register
by assay-systems.com · https://assay-systems.com/mcp
Public procurement register, 75 countries: suppliers, buyers, contracts, single-bid awards
11 of 11 checks · 28 Oct 2026
Is Assay Systems procurement register MCP server safe?
- No hidden instructions were found in its tool descriptions.
- Its error messages showed no secrets or internal details.
- All 10 of its tools are labeled read-only.
- Overall it scored 83/100 on 28 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
10 tools, in the server's own words.
assay_countriesread-onlyCountries covered by the Assay Systems procurement register, with the number of suppliers indexed in each.
assay_searchread-onlySearch the register for a supplier (firm) by name or line of business.
assay_supplierread-onlyOne supplier's record: contracts won, buyers, totals, exclusions and grants, with the source and licence.
assay_lineread-onlyA line of business (what is bought) in one country: buyers, suppliers and totals.
assay_contractread-onlyOne contract or award record from the register.
assay_statusread-onlyWhen each source of the register was last read and built.
assay_supplier_contractsread-onlyAll contract rows of one supplier with the buying office's contact, end dates and amounts.
assay_line_contractsread-onlyAll contract rows of one line of business with the buying office's contact, end dates and amounts.
assay_endingread-onlyContracts of one line that are still running, soonest end first: the next tenders to come.
assay_soloread-onlyBuyer × supplier pairs where the supplier won without a rival, locks and buyer shares; without country — the list of countries.
Test results
Safe mode: only tools labeled read-only were run. How the test works
- !Ready for the newest MCP versionnote
1 warning
- !Uses an older MCP version (2025-06-18). It works today, but it isn't on the July 2026 version (2026-07-28) yet.
- !Every tool is describednote
3 warnings
- !assay_search: Inputs with no description: limit
- !assay_solo: Inputs with no description: kind
- !assay_supplier_contracts and assay_line_contracts have nearly the same description (87% of their words are shared; the only difference: "supplier" vs "line", "business"), so an AI may not know which to pick
- !Bad inputs give a clean errornote
1 warning
- !assay_search: Accepted wrong type for "q" without complaining
- and 14 more
- ✓ConnectsConnected in 413 mspass
- ✓Lists its toolsFound 10 toolspass
- ✓Tools are labeled safe or dangerousEvery tool has a safety labelpass
- ✓No hidden instructionsNo hidden instructions found in tool descriptionspass
- ✓Tools work with good inputspass
All good
- ✓assay_countries: Worked (208 ms)
- ✓assay_search: Worked (330 ms)
- ✓assay_supplier: Answered with an error, probably because of our sample input: {"error":"endpoint","message":"Endpoints: GET /api/v1 lists them."}
- ✓assay_line: Answered with an error, probably because of our sample input: {"error":"endpoint","message":"Endpoints: GET /api/v1 lists them."}
- ✓assay_contract: Answered with an error, probably because of our sample input: {"error":"endpoint","message":"Endpoints: GET /api/v1 lists them."}
- ✓assay_status: Worked (732 ms)
- ✓assay_supplier_contracts: Answered with an error, probably because of our sample input: Contract rows with the buying office's contact come with an Enterprise Data key: https://assay-systems.com/api-key/#data {"error":"commerci…
- ✓assay_line_contracts: Answered with an error, probably because of our sample input: Contract rows with the buying office's contact come with an Enterprise Data key: https://assay-systems.com/api-key/#data {"error":"commerci…
- and 2 more
- ✓Fast enoughpass
All good
- ✓Connecting took 413 ms
- ✓Listing tools took 66 ms
- ✓Average tool answer: 158 ms
- ✓assay_status: Slowest tool: assay_status (732 ms)
- ✓No secrets leakedChecked 31 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://assay-systems.com/mcpShow 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-assay-systems-register.html)Score over time
- 28 Oct 202683
One test so far. New tests will show here.
Reviews
Coming soon: reviews from people who use Assay Systems procurement register, signed in with GitHub, one per person. Reviews never change the score.
QAmcp Monitor (coming soon) tests it every hour and emails you when it goes down, the score drops, a tool changes or a secret leaks. You'll also be able to claim this page and get a verified owner mark. Founding price: $19/month for life for the first 50 teams.
Have a concern, or want it removed? Ask us and we'll take it off the list. How the directory works