Public procurement register, 50+ countries: suppliers, buyers, contracts, single-bid awards
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First seen 18 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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10
Tools
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| assay_contract | One contract or award record from the register. Needs an Enterprise Data key: X-API-Key header on the MCP request (https://assay-systems.com/api-key/#data). | Read-only |
| assay_countries | Countries covered by the Assay Systems procurement register, with the number of suppliers indexed in each. Needs an Enterprise Data key: X-API-Key header on the MCP request (https://assay-systems.com/api-key/#data). | Read-only |
| assay_ending | Contracts of one line that are still running, soonest end first: the next tenders to come. Paid: USD 0.01 per call in USDC on Base via x402 (or an X-API-Key Commercial key on the MCP request). | Read-only |
| assay_line | A line of business (what is bought) in one country: buyers, suppliers and totals. Needs an Enterprise Data key: X-API-Key header on the MCP request (https://assay-systems.com/api-key/#data). | Read-only |
| assay_line_contracts | All contract rows of one line of business with the buying office's contact, end dates and amounts. Paid: USD 0.01 per call in USDC on Base via x402 (or an X-API-Key Commercial key on the MCP request). | Read-only |
| assay_search | Search the register for a supplier (firm) by name or line of business. Returns names, countries, ids and endpoints. Needs an Enterprise Data key: X-API-Key header on the MCP request (https://assay-systems.com/api-key/#data). | Read-only |
| assay_solo | Buyer × supplier pairs where the supplier won without a rival, locks and buyer shares; without country — the list of countries. Paid: USD 0.01 per call in USDC on Base via x402 (or an X-API-Key Commercial key on the MCP request). | Read-only |
| assay_status | When each source of the register was last read and built. | Read-only |
| assay_supplier | One supplier's record: contracts won, buyers, totals, exclusions and grants, with the source and licence. Needs an Enterprise Data key: X-API-Key header on the MCP request (https://assay-systems.com/api-key/#data). | Read-only |
| assay_supplier_contracts | All contract rows of one supplier with the buying office's contact, end dates and amounts. Paid: USD 0.01 per call in USDC on Base via x402 (or an X-API-Key Commercial key on the MCP request). | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | Assay Systems procurement register | - | 18 Oct 2026 |