lexibridge

An MCP (Model Context Protocol) server that speeds up legal research and drafting by giving LLM clients (Claude Desktop, Claude Code, etc.) tools to search a firm's precedent vault and draft clauses, memos, and summaries.

Tools

• search_legal_vault(query, max_results=4) — semantic search over a Pinecone-backed vault of contract clauses and precedent language, embedded with Voyage AI's voyage-law-2 model.

• draft_clause(instruction, clause_type, tone, reference_text) — drafts a single contract clause with an LLM, optionally grounded in retrieved precedent.

• draft_legal_memo(topic, key_facts, jurisdiction, legal_questions, research_context) — drafts a structured legal research memo (Question Presented, Brief Answer, Facts, Discussion, Conclusion).

• summarize_document(document_text, focus) — summarizes a legal document, flagging obligations, deadlines, and risks.

A typical flow: an MCP client calls search_legal_vault to pull relevant precedent, then feeds the results into draft_clause or draft_legal_memo as reference_text / research_context so the drafted language is grounded in the firm's own prior work.

Related MCP server: LegalContext

Setup

1. pip install -r requirements.txt

2. Copy .env.example to .env and fill in ANTHROPIC_API_KEY, VOYAGE_API_KEY, and PINECONE_API_KEY (plus your Pinecone index name, if it differs from the default).

3. Run the server: python server.py

4. Point an MCP client at it, e.g. add to claude_desktop_config.json:

   {
     "mcpServers": {
       "lexibridge": {
         "command": "python",
         "args": ["/absolute/path/to/lexibridge/server.py"]
       }
     }
   }

Disclaimer: output is a drafting aid, not legal advice — a licensed attorney should review anything generated here before it's relied on or filed.