FinBridge

Search Korean Companies (DART)

search_dart_company

Read-only

Search companies registered with DART, South Korea's corporate disclosure system, by name, 6-digit stock code, or 8-digit DART corp_code. Returns the corp_code required by the other dart_* tools.

Not this tool for: US registrants (use search_edgar_company). Japan, Taiwan and Europe have no search tool — reach them through screen_companies or query_db on the companies table.

Args:

query: company name in Korean ('삼성전자') or English ('Samsung Electronics'), 6-digit KRX stock code ('005930'), or 8-digit corp_code
listed_only: restrict to KRX-listed companies (default true). Set false to include ~90k unlisted entities.
limit: max results, 1-50 (default 10)

Returns: {count, companies: [{corp_code, corp_name, corp_name_en, stock_code}]} — corp_name is the Korean name DART registers, corp_name_en the registered English name where the company files one (about three quarters of Korean issuers). stock_code is null for unlisted companies. Match priority: exact stock code > exact Korean name > listed Korean partial > unlisted Korean partial > English name. English matching reads our own company table, so it covers issuers whose English name we hold, not every DART entity.

Examples:

{query: '삼성전자'} -> corp_code 00126380, stock_code 005930
{query: '카카오', listed_only: false} -> listed 카카오 plus unlisted same-name entities
{query: 'Samsung Electronics'} -> 삼성전자 (matched on the registered English name)

Use when you need a corp_code or must disambiguate similar names. Don't use for US companies (use search_edgar_company). Errors: DART_API_KEY not configured; no match returns count 0 (not an error).

Input Schema

TableJSON Schema

Name	Required	Description
`limit`	No	Max results, 1-50 (default 10)
`query`	Yes	Company name, 6-digit stock code, or 8-digit DART corp_code
`listed_only`	No	Only KRX-listed companies (default true)

Output Schema

TableJSON Schema

Name	Required	Description	Default
`count`	Yes
`companies`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 20, 2026
- addedOutput schema / properties / companies / items / properties / corp_name_en
```
Added value: +{
+  "$ref": "#/properties/companies/items/properties/corp_code"
+}
```
First observedSep 6, 2026

TDQS

A5/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds rich behavioral detail beyond that: match priority order, English matching limitation (reads own company table), error conditions (DART_API_KEY not configured, no match returns count 0), and the fact that corp_code is required by other dart_* tools. This fully discloses operational behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is well-structured with headers (Args, Returns, Match priority, Examples, Use when, Errors). Every sentence adds value: alternatives, parameter details, return format, matching nuances, and errors. It is long but not padded; each section is necessary for correct invocation.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The output schema exists and describes return fields, so the description needn't repeat them. It covers match priority, English matching caveat, error handling, and the relationship to other dart_* tools. An agent has all information needed to decide when to call and interpret results correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, but the description adds significant meaning: query accepts three formats (Korean/English name, 6-digit stock code, 8-digit corp_code) with examples; listed_only clarifies the default true and explains the ~90k unlisted entities; limit range is reaffirmed. Examples illustrate realistic usage. This goes far beyond schema descriptions.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states the exact verb (search) and resource (companies registered with DART), and clarifies the output (corp_code). It explicitly names the sibling search_edgar_company as the alternative for US registrants, making differentiation unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to use ('when you need a corp_code or must disambiguate similar names') and when not to ('Don't use for US companies'), with explicit alternatives (search_edgar_company, screen_companies, query_db) for other regions. No inference needed.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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