Korea Business Verify (KBV) MCP Server

by wonderfulian Your server? Claim it

answering

Korea Business Verify (KBV) is answering right now. Last checked 2 min ago. It exposes 3 tools. Last commit 18 Sep 2026.

Real-time Korean business verification via NTS. 10 free calls/day, then pay-per-call (x402).

Uptime history 25 days of history · worst day 99%

25 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

641 ms

Response time

average over 24h

Stars

last commit 18 Sep 2026

What changed 4

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 27 August 2026. No other catalogue keeps this.

7 Sep a tool changed version

4 Sep a tool changed version

27 Aug a tool appeared check_korean_business_batch

27 Aug a tool changed version

Nothing serious here today

Today is the operative word: we check Korea Business Verify (KBV) every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 2 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add kbv-server --transport http https://kbv-server-f7vfitmlkq-du.a.run.app/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "kbv-server": {
      "url": "https://kbv-server-f7vfitmlkq-du.a.run.app/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.kbv-server]
url = "https://kbv-server-f7vfitmlkq-du.a.run.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "kbv-server": {
      "url": "https://kbv-server-f7vfitmlkq-du.a.run.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "kbv-server": {
      "url": "https://kbv-server-f7vfitmlkq-du.a.run.app/mcp"
    }
  }
}

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

korean

check_korean_business_batch

Check the registration status of up to 100 Korean businesses in a single call by their 10-digit business registration numbers (사업자등록번호). Returns one status entry per input number (order preserved) plus a summary count. Use this instead of repeated single checks when screening supplier or customer lists. Recently checked numbers may be answered from a cache up to 24 hours old (marked "cache": true). Data source: Korea National Tax Service.

check_korean_business_status

Check the registration status of a Korean business by its 10-digit business registration number (사업자등록번호). Returns whether the business is active, suspended, or closed, plus tax type. Data source: Korea National Tax Service, real-time.

verify

verify_korean_business

Verify that a Korean business registration number matches the provided representative name and opening date. Use for KYB / due-diligence before transacting with a Korean company. Returns match result plus current status.

Endpoints

URL	Transport	State	Latency	Checked
https://kbv-server-f7vfitmlkq-du.a.run.app/mcp	streamable-http	answering	679 ms	2 min ago

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Korea Business Verify (KBV) — questions

Answers built from our own checks of this server.

What can Korea Business Verify (KBV) do?

It exposes 3 tools, read directly from the server on our last check. Among them: check_korean_business_batch, check_korean_business_status, verify_korean_business. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Korea Business Verify (KBV) working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 641 ms. The bar chart above shows every period we have measured.

How do I connect Korea Business Verify (KBV)?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Korea Business Verify (KBV) need an API key?

No. Korea Business Verify (KBV) completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Korea Business Verify (KBV)?

It answers our handshake in 641 ms on average, which is faster than 19% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Korea Business Verify (KBV) open source?

Yes — it is published under the MIT licence, written in TypeScript and 1 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.