A side-by-side look at the Lexapi MCP and RegAI Legal MCP (Taiwan) MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Lexapi MCP for legal work as a local process; choose RegAI Legal MCP (Taiwan) for legal. You can also run both side by side in one mcpServers block.
LEXAPI_API_KEY, LEXAPI_BASE_URL.lex_search, lex_get_document, lex_get_metadata.search_law, search_law_titles, get_article_by_number.Rows where the two servers differ are marked.
| Spec | R RegAI Legal MCP (Taiwan) | |
|---|---|---|
| Category | Legal | Legal |
| Quality signal | 60/100 · Good | 48/100 · Fair |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | API key required | OAuth 2.0 |
| Pricing | Freemium | Free |
| Required env vars | LEXAPI_API_KEYLEXAPI_BASE_URL | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 3 | 0 |
| Directory activity | 2 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 10 | 9 |
| Full listing | View Lexapi MCP | View RegAI Legal MCP (Taiwan) |
lex_searchStructured EUR-Lex search (text, dates, document type, author, language).lex_get_documentFull parsed document by CELEX — metadata + articles, sections, tables, annexes.lex_get_metadataMetadata only (faster than full content).lex_get_document_by_urlFetch by EUR-Lex URL (pasted from a browser).lex_recent_documentsRecent Official Journal publications (default 7 days).lex_cited_byDocuments citing this CELEX (inbound, typed edges).lex_citesDocuments this CELEX cites (outbound, typed edges).lex_citation_networkBoth directions in one call.lex_semantic_case_lawEmbedding search over EU case law (paid plans).lex_semantic_legislationEmbedding search over EU legislation (paid plans).search_lawSearch law articles by legal concept, keyword or article referencesearch_law_titlesResolve a full or partial law name to the official name(s)get_article_by_numberExact text of one article by law name + number (optionally the official English)get_law_hierarchyChapter / section / article outline of one lawget_law_detailsFull text of an entire law, as Markdownsearch_decisionsSearch court decisions by concept, fact pattern or keyword, ranked by relevancesearch_decisions_exactList **every** decision containing literal phrase(s), with the exact totalget_decision_detailsFull text of one decision by its id (`jid`)search_grand_chamber_decisionsSearch Grand Chamber (大法庭) rulings that resolve divergent interpretationsPaste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"lex-api-lexapi-mcp": {
"command": "npx",
"args": [
"-y",
"@lexapi/mcp"
],
"env": {
"LEXAPI_API_KEY": "YOUR_LEXAPI_API_KEY_HERE",
"LEXAPI_BASE_URL": "YOUR_LEXAPI_BASE_URL_HERE"
}
}
}
}
No confirmed install command for RegAI Legal MCP (Taiwan) yet — follow the setup steps linked from its listing page rather than a guessed package name.