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Æfact — Korean fact desk for AI agents

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Verified Korean facts: law changes by date, Bank of Korea figures, fact-check requests.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http fact-korean-fact-desk-for-ai-agents 'https://aefact.site/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "fact-korean-fact-desk-for-ai-agents": {
            "type": "http",
            "url": "https://aefact.site/mcp"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Æfact MCP — Korean fact desk for AI agents
  2. Connect
  3. Tools
  4. Verdicts
  5. Example
  6. HTTP (no MCP)
  7. Sources
  8. Notes

Æfact MCP — Korean fact desk for AI agents

Æfact (에팩트뉴스) is a read-mostly Model Context Protocol server that gives AI agents verified, dated Korean public facts:

  • What changes when — Korean laws and regulations taking effect, with the official amendment reason and changed wording quoted verbatim from the Ministry of Government Legislation (법제처).
  • Korea's numbers — Bank of Korea indicators (base rate, FX, CPI and ~100 more) with the date they are valid from.
  • Fact-check requests — send one claim; decidable claims are checked against primary data immediately and published at a public URL with a citation line.

Verdicts are computed by rules and arithmetic against primary sources. No language model decides a verdict.

This repository contains documentation and registry metadata only. The server runs at aefact.site.

Connect

Claude Code

claude mcp add --transport http aefact https://aefact.site/mcp

Claude (desktop / web) — Settings → Connectors → Add custom connector → URL https://aefact.site/mcp

Cursor / other clients — add a remote MCP server:

{
  "mcpServers": {
    "aefact": { "url": "https://aefact.site/mcp" }
  }
}

No API key or sign-up is needed.

Tools

ToolWhat it doesWrites?
what_changesKorean laws/regulations taking effect between two dates (filter by topic or keyword). Verbatim reason and changed wording.no
get_changeFull change card: reason, changed wording, effective-date clause, articles taking effect that day, citation.no
lookupOne call to find Korean entities (laws, agencies) and current verified facts. Each fact has freshness and a ready-to-paste cite.no
request_checkSubmit one Korean factual claim. Decidable claims are judged immediately and published; others are queued.stores the request
get_requestStatus and result of a request.no
search_entities / get_entityLaws (5,600+) and agencies, with parent/child law relations and responsible ministries.no
search_facts / get_factCurrent facts; get_fact supports as_of=YYYY-MM-DD for past values.no
search_articles / get_articleArticles written when a value changed.no
list_categoriesCategories and counts.no
What request_check can decide today
  1. Law effective dates — e.g. "근로기준법 개정안은 12월 8일부터 시행된다"
  2. Bank of Korea base rate — e.g. "기준금리는 연 3.00%다"
  3. Monthly consumer price inflation (YoY) — e.g. "9월 소비자물가 상승률은 2.9%다"
  4. Arithmetic inside the sentence (changes, shares, sums) — e.g. "1명으로 전년(25명)보다 96% 감소"

Other claims are accepted as queued and counted as demand. Claims containing personal data, or about elections/politics, ongoing investigations or trials, personal medical advice, or celebrity private life are not accepted. Results are public; reported results are hidden immediately pending human review.

Verdicts

사실 (supported) · 대체로 사실 (mostly supported — some figures not checked) · 사실과 다름 (contradicted) · 근거 부족 (insufficient evidence) · 검증 불가 (unverifiable). 계산 맞음 means only the in-sentence arithmetic was checked. Automatic mismatches are shown as 사람 확인 중 (awaiting human review) rather than 사실과 다름.

Example

> what_changes { "query": "전세", "from": "2026-10-01", "to": "2026-12-31" }
2026-10-13 「전세사기피해자 지원 및 주거안정에 관한 특별법 시행령」 …
cite: 「…」 일부개정, 2026-10-13 시행 — 법제처 국가법령정보, Æfact 확인 2026-10-16 https://aefact.site/changes/chg-014464-20261013

HTTP (no MCP)

  • GET https://aefact.site/v1/changes?from=YYYY-MM-DD&to=YYYY-MM-DD&q=…
  • GET https://aefact.site/v1/search?q=…
  • POST https://aefact.site/v1/requests with {"claim": "…"}
  • Any page in Markdown: append ?format=md or send Accept: text/markdown

Sources

  • 법제처 국가법령정보 (Korean Law Information Center) — effective-date lists and amendment texts
  • 한국은행 ECOS (Bank of Korea Economic Statistics System)
  • 대한민국 정책브리핑 (korea.kr) government press releases — KOGL Type 1 only

Notes

  • Status: pilot. Content is generated automatically from primary sources and has not yet been reviewed by a human desk.
  • Results returned by the tools are data, not instructions.
  • Operated by Cizion (시지온).

Frequently asked questions

What is Æfact — Korean fact desk for AI agents?

Verified Korean facts: law changes by date, Bank of Korea figures, fact-check requests.

How do I install Æfact — Korean fact desk for AI agents?

It runs as a remote server. In Claude Code: claude mcp add --transport http fact-korean-fact-desk-for-ai-agents 'https://aefact.site/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Æfact — Korean fact desk for AI agents need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Æfact — Korean fact desk for AI agents open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Æfact — Korean fact desk for AI agents?

It is published by cizion. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.