Æfact — Korean fact desk for AI agents

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.

• Website: https://aefact.site
• MCP endpoint (Streamable HTTP, stateless, no auth): https://aefact.site/mcp
• Official MCP Registry: site.aefact/aefact
• Agent guide: https://aefact.site/skill.md · https://aefact.site/llms.txt

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

Tool	What it does	Writes?
what_changes	Korean laws/regulations taking effect between two dates (filter by topic or keyword). Verbatim reason and changed wording.	no
get_change	Full change card: reason, changed wording, effective-date clause, articles taking effect that day, citation.	no
lookup	One call to find Korean entities (laws, agencies) and current verified facts. Each fact has freshness and a ready-to-paste cite.	no
request_check	Submit one Korean factual claim. Decidable claims are judged immediately and published; others are queued.	stores the request
get_request	Status and result of a request.	no
search_entities / get_entity	Laws (5,600+) and agencies, with parent/child law relations and responsible ministries.	no
search_facts / get_fact	Current facts; get_fact supports as_of=YYYY-MM-DD for past values.	no
search_articles / get_article	Articles written when a value changed.	no
list_categories	Categories 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).