Jaryo - Korean company records, sourced. Start with verify_company (no key)

Working Security A

org.jaryo/korean-companiesv0.1.0 Domain verified

~960k Korean corporations, not only listed: official IDs linked, live NTS status, English names

Legal & Government

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Registry entry

Open in the registry

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-09T00:22:32.48361Z",
      "publishedAt": "2026-11-09T00:22:32.48361Z",
      "statusChangedAt": "2026-11-09T00:22:32.48361Z"
    }
  },
  "server": {
    "name": "org.jaryo/korean-companies",
    "icons": [
      {
        "src": "https://jaryo.org/assets/favicon-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "Jaryo - Korean company records, sourced. Start with verify_company (no key)",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://mcp.jaryo.org",
        "type": "streamable-http",
        "headers": [
          {
            "name": "Authorization",
            "isSecret": true,
            "description": "Optional. Bearer <Jaryo API key>. Not needed for verify_company or list_sources. Free key: https://jaryo.org/keys/"
          }
        ]
      }
    ],
    "version": "0.1.0",
    "websiteUrl": "https://jaryo.org",
    "description": "~960k Korean corporations, not only listed: official IDs linked, live NTS status, English names"
  }
}

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://mcp.jaryo.org

Authorization (optional)

Optional. Bearer <Jaryo API key>. Not needed for verify_company or list_sources. Free key: https://jaryo.org/keys/

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

get_company Read-only

Company profile by Jaryo id: names (ko/en), all identifiers, current profile records (DART overview, procurement vendor profile, tax status, pension headcount) and record counts. Every value carries its source and license.

idstring, required

Jaryo entity id (26-char ULID)

Install

Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.

One click: Add to Cursor Add to VS Code Add to LM Studio Add to Goose

Run in a terminal

claude mcp add --transport http korean-companies https://mcp.jaryo.org

Headers

Authorization (optional, not in the config above): Optional. Bearer <Jaryo API key>. Not needed for verify_company or list_sources. Free key: https://jaryo.org/keys/

Tools (6)

get_company

read-only

Argument	Type	Description
id*	string	Jaryo entity id (26-char ULID)

Input schema (JSON)

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "Jaryo entity id (26-char ULID)"
    }
  }
}

list_company_records

Public records attached to a company: procurement awards and contracts, sanctions, DART filings, employment (pension headcount), tax status. Newest first, paginated.

read-only

Argument	Type	Description
id*	string	Jaryo entity id
type	string	Record type filter
limit	integer
cursor	string	next_cursor from the previous page

Input schema (JSON)

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "Jaryo entity id"
    },
    "type": {
      "enum": [
        "company_profile",
        "vendor_profile",
        "award",
        "contract",
        "filing",
        "employment",
        "status",
        "sanction",
        "corp_outline",
        "corp_code"
      ],
      "type": "string",
      "description": "Record type filter"
    },
    "limit": {
      "type": "integer",
      "default": 20,
      "maximum": 100,
      "minimum": 1
    },
    "cursor": {
      "type": "string",
      "description": "next_cursor from the previous page"
    }
  }
}

list_sources

Catalog of Korean public data sources Jaryo uses, with license, redistribution status and update cadence. No key needed.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {}
}

resolve_company

Find the Jaryo entity for a Korean company from its name (Korean or English) or an official identifier: business registration number (biz_no, 10 digits), corporate registration number (corp_reg_no, 13 digits), DART corp code (8 digits) or KONEPS vendor id. Returns candidates with confidence. (한국 회사 찾기)

read-only

Argument	Type	Description
name	string	Company name, Korean or English (2+ characters), or a stock code (6 digits)
biz_no	string	사업자등록번호, 10 digits, hyphens allowed
corp_reg_no	string	법인등록번호, 13 digits
g2b_vendor_id	string	KONEPS (나라장터) vendor id = business registration number
dart_corp_code	string	DART 고유번호, 8 digits

Input schema (JSON)

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "description": "Company name, Korean or English (2+ characters), or a stock code (6 digits)"
    },
    "biz_no": {
      "type": "string",
      "description": "사업자등록번호, 10 digits, hyphens allowed"
    },
    "corp_reg_no": {
      "type": "string",
      "description": "법인등록번호, 13 digits"
    },
    "g2b_vendor_id": {
      "type": "string",
      "description": "KONEPS (나라장터) vendor id = business registration number"
    },
    "dart_corp_code": {
      "type": "string",
      "description": "DART 고유번호, 8 digits"
    }
  }
}

search_companies

Search companies by Korean or English name. Returns up to 20 entities.

read-only

Argument	Type	Description
q*	string	Name or part of it (2+ characters; 3+ match any part, 2 match the start of a name)
limit	integer

Input schema (JSON)

{
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "description": "Name or part of it (2+ characters; 3+ match any part, 2 match the start of a name)"
    },
    "limit": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1
    }
  }
}

verify_company

Start here. Verify a Korean corporation by name, business registration number (10 digits), corporate registration number (13 digits), DART code (8 digits) or stock code (6 digits): does it exist, its National Tax Service status (active / suspended / closed, with the date it was checked), official numbers, Korean and English names, address, industry and sources. Up to 10 matches, best-known company first; more_matches=true means add the business number or city to narrow. Each match has match_type. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)

read-only

Argument	Type	Description
q*	string	Company name, 사업자등록번호 (10 digits), 법인등록번호 (13 digits) or stock code (6 digits)

Input schema (JSON)

{
  "type": "object",
  "required": [
    "q"
  ],
  "properties": {
    "q": {
      "type": "string",
      "description": "Company name, 사업자등록번호 (10 digits), 법인등록번호 (13 digits) or stock code (6 digits)"
    }
  }
}

Security checkA100/100

We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 9, 2026.

Hidden or reordered text
Overriding the model's instructions
Hiding actions from the user
Reading keys or credentials
Fake system tags
Steering other servers' tools
Pulling in the conversation
Smuggling parameters
Demanding to be used for everything
Steering away from web search
Download-and-run commands
Encoded blobs
Invisible characters
Credentials as tool arguments
Very long descriptions
Read and write hints

How the security check works