Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Changed the definition of "check_korean_business_batch" and "check_korean_business_status"
Check theScreenregistrationastatuslist of up to 100 Korean businesses in a ⟨5 unchanged words⟩ business registration numbers (사업자등록번호). Returns onestatusentry per input number (order preserved)pluswith registration status, tax type, and any public-procurement debarment ("부정당업자 제재") on record — a company can be perfectly active and still barred from public contracts. The summarycount.counts how many are currently debarred. Use thisinsteadforofsupplier,repeatedvendorsingleorcheckscustomerwhenlist screeningsupplierinsteadorofcustomerrepeatedlists.single checks. Recently checked numbers may be answered from a cache up to 24 hours old (marked "cache": true).Data sourceSources: Korea National Tax Service, Public Procurement Service.
⟨24 unchanged words⟩ "},{"type":"null"}]},"sanctions":{"items":{"additionalProperties":false,"properties":{"active":{"type":"boolean"},"begins_on":{"type":"string"},"ends_on":{"type":"string"},"institution":{"type":"string"},"law":{"type":"string"},"status":{"type":"string"}},"required":["active"],"type":"object"},"type":"array"},"source":{"const":"Korea National Tax Service ⟨43 unchanged words⟩ "closed":{"type":"number"},"not_registered":{"type":"number"},"sanctioned":{"type":"number"},"suspended": ⟨18 unchanged words⟩
⟨28 unchanged words⟩ Data source: Korea National Tax Service, real-time. The number 1248100998 (Samsung Electronics) is exempt from the daily free tier, so you can exercise this tool while building without spending your allowance.
Added "find_korean_business" (3 tools before, 4 now)
Find a Korean business by name — Find a Korean company by name (English or Korean) when you do not know its 10-digit business registration number — the number every other tool here needs. Returns ranked candidates with a confidence score and discriminating evidence (registration status, tax type, region), because a name can match several distinct companies: "Samsung Electronics" matches four. Sources: DART (disclosure filers, English names) and the Public Procurement Service registry (small businesses).
Certificate changed, valid to 2026-12-03
Certificate changed, valid to 2026-11-27
Certificate recorded, valid to 2026-11-02
Authorization not required
First tool surface recorded: 3 tools (server version 0.2.2)
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