MCP MeasureMCP Measure

index observed

Korea Business Verify (KBV)

Find and verify Korean businesses by name or number. 10 free calls/day, then pay-per-call (x402).

Should I use this

Quality & Safety

A
Description quality
100%
Schema completeness
100%
Naming quality
100%
Poisoning risk
100%
Permission match
100%
Protocol compliance
100%

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~1,389Tokens (tool definitions)
~2.9 KBTypical response size
Moderate attention impact (1.09% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

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

Remote endpoints

https://kbv-server-f7vfitmlkq-du.a.run.app/mcpstreamable-http

What it can do

Tool inventory

Tools (4)

🟒 Read-only🟑 WriteπŸ”΄ Deleteβšͺ Unknown
🟒check_korean_business_status(business_number)

Check the registration status of a Korean business by its 10-digit business registration number (μ‚¬μ—…μžλ“±λ‘λ²ˆν˜Έ). Returns whether the business is active, suspended, or closed, plus tax type. Data source: Korea National Tax Service, real-time.

Input Schema

{
  "type": "object",
  "properties": {
    "business_number": {
      "type": "string",
      "description": "10-digit Korean business registration number; hyphens/spaces allowed, e.g. \"123-45-67890\""
    }
  },
  "required": [
    "business_number"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Output Schema

{
  "type": "object",
  "properties": {
    "business_number": {
      "type": "string"
    },
    "status": {
      "type": "string",
      "enum": [
        "active",
        "suspended",
        "closed",
        "not_registered"
      ]
    },
    "status_code_raw": {
      "type": "string"
    },
    "tax_type": {
      "type": "string",
      "enum": [
        "general",
        "simplified",
        "exempt",
        "non_profit",
        "unknown"
      ]
    },
    "closed_date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "checked_at": {
      "type": "string"
    },
    "source": {
      "type": "string",
      "const": "Korea National Tax Service (NTS)"
    },
    "cache": {
      "type": "boolean"
    }
  },
  "required": [
    "business_number",
    "status",
    "status_code_raw",
    "tax_type",
    "closed_date",
    "checked_at",
    "source",
    "cache"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false
}
🟒check_korean_business_batch(business_numbers)

Check the registration status of up to 100 Korean businesses in a single call by their 10-digit business registration numbers (μ‚¬μ—…μžλ“±λ‘λ²ˆν˜Έ). 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.

Input Schema

{
  "type": "object",
  "properties": {
    "business_numbers": {
      "minItems": 1,
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "1-100 Korean business registration numbers; hyphens/spaces allowed"
    }
  },
  "required": [
    "business_numbers"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Output Schema

{
  "type": "object",
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "business_number": {
            "type": "string"
          },
          "status": {
            "type": "string",
            "enum": [
              "active",
              "suspended",
              "closed",
              "not_registered"
            ]
          },
          "status_code_raw": {
            "type": "string"
          },
          "tax_type": {
            "type": "string",
            "enum": [
              "general",
              "simplified",
              "exempt",
              "non_profit",
              "unknown"
            ]
          },
          "closed_date": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ]
          },
          "checked_at": {
            "type": "string"
          },
          "source": {
            "type": "string",
            "const": "Korea National Tax Service (NTS)"
          },
          "cache": {
            "type": "boolean"
          }
        },
        "required": [
          "business_number",
          "status",
          "status_code_raw",
          "tax_type",
          "closed_date",
          "checked_at",
          "source",
          "cache"
        ],
        "additionalProperties": false
      }
    },
    "summary": {
      "type": "object",
      "properties": {
        "total": {
          "type": "number"
        },
        "active": {
          "type": "number"
        },
        "suspended": {
          "type": "number"
        },
        "closed": {
          "type": "number"
        },
        "not_registered": {
          "type": "number"
        }
      },
      "required": [
        "total",
        "active",
        "suspended",
        "closed",
        "not_registered"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "results",
    "summary"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false
}
🟒find_korean_business(name, limit)

Find a Korean company by name (English or Korean) when you do not know its 10-digit business registration number β€” 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).

Input Schema

{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 1,
      "description": "Company name in English or Korean, e.g. \"Samsung Electronics\" or \"μ‚Όμ„±μ „μž\""
    },
    "limit": {
      "description": "Maximum candidates to return (default 5)",
      "type": "integer",
      "minimum": 1,
      "maximum": 10
    }
  },
  "required": [
    "name"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}
🟒verify_korean_business(business_number, representative_name, opening_date, address)

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.

Input Schema

{
  "type": "object",
  "properties": {
    "business_number": {
      "type": "string",
      "description": "10-digit Korean business registration number; hyphens/spaces allowed"
    },
    "representative_name": {
      "type": "string",
      "minLength": 1,
      "description": "Representative (CEO) name as registered, e.g. \"홍길동\""
    },
    "opening_date": {
      "type": "string",
      "description": "Business opening date in YYYY-MM-DD format, e.g. \"2015-03-02\""
    },
    "address": {
      "description": "Optional business address to include in the match (maps to NTS b_adr)",
      "type": "string"
    }
  },
  "required": [
    "business_number",
    "representative_name",
    "opening_date"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#"
}

Output Schema

{
  "type": "object",
  "properties": {
    "business_number": {
      "type": "string"
    },
    "status": {
      "type": "string",
      "enum": [
        "active",
        "suspended",
        "closed",
        "not_registered"
      ]
    },
    "status_code_raw": {
      "type": "string"
    },
    "tax_type": {
      "type": "string",
      "enum": [
        "general",
        "simplified",
        "exempt",
        "non_profit",
        "unknown"
      ]
    },
    "closed_date": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ]
    },
    "checked_at": {
      "type": "string"
    },
    "source": {
      "type": "string",
      "const": "Korea National Tax Service (NTS)"
    },
    "cache": {
      "type": "boolean"
    },
    "identity_match": {
      "type": "boolean"
    }
  },
  "required": [
    "business_number",
    "status",
    "status_code_raw",
    "tax_type",
    "closed_date",
    "checked_at",
    "source",
    "cache",
    "identity_match"
  ],
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false
}

Community

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Evidence

Recent observations

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