Bring Legal Practice Management
to Claude Desktop
Learn how to connect Lexzur to Claude Desktop and start using 10 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
What is the Lexzur MCP Server?
Connect your Lexzur (formerly App4Legal) account to any AI agent and take full control of your legal practice management and automated case workflows through natural conversation.
What you can do
- Matter & Litigation Orchestration — List and manage your entire portfolio of high-fidelity Corporate Matters and Litigation Cases programmatically, retrieving detailed status and metadata
- Contact Intelligence — Access your complete directory of high-fidelity contacts and companies to coordinate your organizational relationship ecosystem in real-time
- Case Lifecycle Monitoring — Access real-time updates for legal cases and retrieve high-fidelity history for specific matters directly through your agent
- Legal Discovery Management — Query specific matters or contacts using custom search filters to maintain a perfectly coordinated audit trail of your legal practice
- Operational Monitoring — Verify account-level API connectivity and monitor practice volume directly through your agent for instant performance reporting
How it works
1. Subscribe to this server
2. Retrieve your API Token and Instance URL from your Lexzur dashboard (Settings > API)
3. Start orchestrating your legal practice from Claude, Cursor, or any MCP client
No more manual logging into complex legal dashboards or missing case updates. Your AI acts as your dedicated legal coordinator and matter architect.
Who is this for?
- Lawyers & Attorneys — instantly retrieve case summaries and matter statuses using natural language commands
- Legal Operations — monitor practice health and verify contact metadata without leaving your workspace
- Paralegals — automate the management of corporate records and contact directories through simple AI queries
Built-in capabilities (10)
Create a new legal matter
Get details for a specific matter
List companies/clients
List contacts
List uploaded documents
List legal invoices
List litigation cases
List legal matters
List legal tasks
List time entries
Why Claude Desktop?
Claude Desktop is the definitive way to connect Lexzur to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 10 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.
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Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available
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Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface
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Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions
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Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network
Lexzur in Claude Desktop
Lexzur and 3,400+ other MCP servers. One platform. One governance layer.
Teams that connect Lexzur to Claude Desktop through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 3,400+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Lexzur in Claude Desktop
The Lexzur MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 10 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in Claude Desktop only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Lexzur for Claude Desktop
Every tool call from Claude Desktop to the Lexzur MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How do I find my Lexzur API Token?
Log in to your account, navigate to Settings > API, and copy your unique access token from the credentials section.
Can I retrieve litigation cases via AI?
Yes! The list_litigation_cases tool allows your agent to retrieve high-fidelity data for all ongoing court cases in your Lexzur portfolio.
How do I search for a specific contact?
Use the list_lexzur_contacts tool and provide search parameters to retrieve high-fidelity metadata for specific individuals or companies.
How does Claude Desktop discover MCP tools?
When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.
What happens if the MCP server is temporarily unavailable?
Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.
Can I connect multiple MCP servers simultaneously?
Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.
Is there a limit on the number of tools per server?
Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.
Does Claude Desktop support Streamable HTTP transport?
Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.
Server not appearing after restart
Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).
Authentication error
Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.
Tools not showing in chat
Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.