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

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

- name: org.jaryo/korean-companies
- version: 0.1.1
- connection class: R0 (autonomous)
- trust: 95/100
- quality: 82/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/org.jaryo%2Fkorean-companies
- tools: https://api.protogrid.dev/v1/servers/org.jaryo%2Fkorean-companies/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "korean-companies": {
      "type": "http",
      "url": "https://mcp.jaryo.org",
      "headers": {
        "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${KOREAN_COMPANIES_TOKEN}`.

## Trust

- hygiene: 100
- liveness: 98
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-95% +updated-2d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 82/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 88 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 7 of 7 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_company (destructiveHint, idempotentHint); verify_company (destructiveHint, idempotentHint); resolve_company (destructiveHint, idempotentHint); …
- pass `tools.token_cost`: about 1,218 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump
- pass `tools.hidden_text`: no hidden text in tool names, descriptions, schemas or annotations

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`, `stability.new_links`: tool history recorded for 5 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 7, about 1,218 tokens to load them all
- tool set hash: 2fecb2a994e18bc3b6a750175e2d339f
- tools last changed: 2026-11-13T06:18:31.846Z
- badge: [![protogrid quality](https://protogrid.dev/badge/org.jaryo/korean-companies.svg)](https://protogrid.dev/servers/org.jaryo/korean-companies)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-11-13 `verify_company` changed (description)
  - before: 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; name results also have rank_reason (why it is in that place) and the response has ranking. industry.ko / industry.en are official KSIC names (11th revision); industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)
  - after: 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 and former_names (previous names; match_type former_name when the query equals only one of them); name results also have rank_reason (why it is in that place) and the response has ranking. industry.ko / industry.en are official KSIC names (11th revision); industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)
- 2026-11-10 `verify_company` changed (description)
  - before: 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; name results also have rank_reason (why it is in that place) and the response has ranking. industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)
  - after: 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; name results also have rank_reason (why it is in that place) and the response has ranking. industry.ko / industry.en are official KSIC names (11th revision); industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)
- 2026-11-10 `match_companies` added
  - Match up to 1,000 rows of your own company list to official Korean identifiers. Each row is a string or an object/array of cells — a company name and/or a business registration number (10 digits), corporate registration number (13), DART code (8) or stock code (6), in any order. Returns per row: result (matched / ambiguous / not_found / not_supported / invalid), match_type, entity_id, official numbers and the official English name; several equally good candidates are answered as ambiguous, not guessed. Identifiers only (tax status is free at verify_company). Rows are not stored. Each row uses one unit of your daily limit. Requires a Jaryo API key (free: https://jaryo.org/keys/). (회사 목록 맞추기)
- 2026-11-10 `verify_company` changed (description)
  - before: 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)
  - after: 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; name results also have rank_reason (why it is in that place) and the response has ranking. industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)
- 2026-11-10 `search_companies` changed (description)
  - before: Search companies by Korean or English name. Returns up to 20 entities.
  - after: Search companies by Korean or English name. Returns up to 20 entities. Requires a Jaryo API key.
- 2026-11-10 `list_company_records` changed (description)
  - before: Public records attached to a company: procurement awards and contracts, sanctions, DART filings, employment (pension headcount), tax status. Newest first, paginated.
  - after: Public records attached to a company: procurement awards and contracts, sanctions, DART filings, employment (pension headcount), tax status. Newest first, paginated. Requires a Jaryo API key.
- 2026-11-10 `get_company` changed (description)
  - before: 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.
  - after: 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. Requires a Jaryo API key.
- 2026-11-10 `resolve_company` changed (description)
  - before: 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)
  - after: 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. Requires a Jaryo API key (free: https://jaryo.org/keys/). (한국 회사 찾기)
- 2026-11-10 `verify_company` changed (inputSchema)

Full history: https://api.protogrid.dev/v1/servers/org.jaryo%2Fkorean-companies/changes

## Remotes

- https://mcp.jaryo.org (streamable-http, auth none, reachable true, uptime30d 0.95238096)

## Packages

_none_

## Tools (7)

- `get_company`: 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. Requires a Jaryo API key.
- `list_company_records`: Public records attached to a company: procurement awards and contracts, sanctions, DART filings, employment (pension headcount), tax status. Newest first, paginated. Requires a Jaryo API key.
- `list_sources`: Catalog of Korean public data sources Jaryo uses, with license, redistribution status and update cadence. No key needed.
- `match_companies`: Match up to 1,000 rows of your own company list to official Korean identifiers. Each row is a string or an object/array of cells — a company name and/or a business registration number (10 digits), corporate registration number (13), DART code (8) or stock code (6), in any order. Returns per row: result (matched / ambiguous / not_found / not_supported / invalid), match_type, entity_id, official numbers and the official English name; several equally good candidates are answered as ambiguous, not guessed. Identifiers only (tax status is free at verify_company). Rows are not stored. Each row uses one unit of your daily limit. Requires a Jaryo API key (free: https://jaryo.org/keys/). (회사 목록 맞추기)
- `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. Requires a Jaryo API key (free: https://jaryo.org/keys/). (한국 회사 찾기)
- `search_companies`: Search companies by Korean or English name. Returns up to 20 entities. Requires a Jaryo API key.
- `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 and former_names (previous names; match_type former_name when the query equals only one of them); name results also have rank_reason (why it is in that place) and the response has ranking. industry.ko / industry.en are official KSIC names (11th revision); industry.tax_business_type is a tax classification, not KSIC. Corporations only — individual businesses are answered as not supported. No scores or judgements. No key needed. (한국 법인 확인)