Korean Law MCP (korean-law-mcp)

korean-law-mcp is an MCP server that taps into Korea’s national legal database, covering approximately 175,064 items – the Constitution, Acts, delegated legislation, administrative rules, local autonomous ordinances, and judicial precedents. It distills 42 official APIs into 9 MCP tools, including multi‑step legal research and a precision analysis tool that offers citation verification, precedent vitality checks, “law at the time of act” comparisons, and dependency graphs of provisions. Users can retrieve exact article numbers, validate citations, and trace statutory relationships in one prompt.

The primary advantage is LLM hallucination mitigation. Built‑in cross‑referencing confirms whether a precedent is still effective and whether a cited provision matches the current text; an automatic diff and a step‑by‑step “what to do when” guide further reduce guesswork. In real‑world cases shared on X, a public servant who used to click a dozen times to locate a specific clause could now retrieve it with a single natural‑language instruction. The tool also supports influence graphs that visualise how articles interact, aiding legislative review and compliance checks.