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

R0· no sign-in

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

v0.1.1 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality82new
Trust95of 100
Uptime, 30 days95%
Latency p501005 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "korean-companies": {
      "type": "http",
      "url": "https://mcp.jaryo.org",
      "headers": {
        "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
      }
    }
  }
}
claude mcp add --transport http korean-companies https://mcp.jaryo.org --header "Authorization: Bearer ${KOREAN_COMPANIES_TOKEN}"
[mcp_servers.korean-companies]
url = "https://mcp.jaryo.org"
bearer_token_env_var = "KOREAN_COMPANIES_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "korean-companies": {
      "type": "remote",
      "url": "https://mcp.jaryo.org",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:KOREAN_COMPANIES_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "korean-companies": {
      "type": "http",
      "url": "https://mcp.jaryo.org",
      "headers": {
        "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=korean-companies&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwLmphcnlvLm9yZyIsImhlYWRlcnMiOnsiQXV0aG9yaXphdGlvbiI6IkJlYXJlciAke0tPUkVBTl9DT01QQU5JRVNfVE9LRU59In19"
}
{
  "servers": {
    "korean-companies": {
      "type": "http",
      "url": "https://mcp.jaryo.org",
      "headers": {
        "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "korean-companies": {
      "httpUrl": "https://mcp.jaryo.org",
      "headers": {
        "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
      }
    }
  }
}
extensions:
  "korean-companies":
    enabled: true
    name: "korean-companies"
    type: streamable_http
    uri: "https://mcp.jaryo.org"
    headers:
      "Authorization": "Bearer ${KOREAN_COMPANIES_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${KOREAN_COMPANIES_TOKEN}. The registry never accepts secret values.

Quality 82 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene88 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations7 of 7 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno 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_costabout 1,218 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
  • pass
    tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pull, stability.new_linkstool history recorded for 5 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 1,218 tokens to load them all · tool set 2fecb2a994e1 · tools last changed 2026-11-13 · checked 2026-11-14 07:03 UTC

Tool changes

  • verify_companychangeddescription
    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 · 92% of words in common

    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)

  • verify_companychangeddescription
    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 · 96% of words in common

    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)

  • match_companiesadded

    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)

  • verify_companychangeddescription
    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 · 84% of words in common

    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)

  • search_companieschangeddescription
    before

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

    after · 71% of words in common

    Search companies by Korean or English name. Returns up to 20 entities. Requires a Jaryo API key.

  • list_company_recordschangeddescription
    before

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

    after · 84% of words in common

    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.

  • get_companychangeddescription
    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 · 88% of words in common

    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.

  • resolve_companychangeddescription
    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 · 84% of words in common

    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)

  • verify_companychangedinput schema

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 95 / 100

provenance85
liveness98
freshness100
hygiene100

+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. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcp.jaryo.org streamable-httpnoneyes95%1005 ms2025-11-252026-11-14

Tools (7)

get_companyread-onlyCompany 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_recordsread-onlyPublic 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_sourcesread-onlyCatalog of Korean public data sources Jaryo uses, with license, redistribution status and update cadence. No key needed.
match_companiesread-onlyMatch 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_companyread-onlyFind 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_companiesread-onlySearch companies by Korean or English name. Returns up to 20 entities. Requires a Jaryo API key.
verify_companyread-onlyStart 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)

Schemas: list_tools.

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Official server.json
{
  "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": "0.1.1",
  "repository": {
    "url": "https://github.com/windmarks74/jaryo-mcp",
    "source": "github"
  },
  "websiteUrl": "https://jaryo.org",
  "description": "~960k Korean corporations, not only listed: official IDs linked, live NTS status, English names"
}