Bring Practice Management
to LangChain
Create your Vinkius account to connect LEAP Legal to LangChain and start using all 18 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the LEAP Legal MCP Server?
Connect to LEAP Legal Software platform and manage your entire law practice from any AI agent. Access matters, contacts, documents, time entries, calendar events, bills, payments, and tasks—all through a unified REST API.
What you can do
- Matters/Cases — List, search, create, and update legal matters with status, client, and practice area
- Contacts/Clients — Manage your client database including individuals, organizations, and opposing parties
- Client Portfolio — View all matters associated with a specific client
- Time Tracking — Log billable and non-billable time entries against any matter
- Bills/Invoices — List and review bills with amounts, status, and line items
- Payments — Track payments received from clients
- Tasks — View and manage tasks associated with matters and contacts
- Documents — Access matter documents, filings, correspondence, and evidence
- Calendar — View court dates, hearings, deadlines, and meetings
- Custom Fields — Access custom field schemas configured for matters
How it works
- Subscribe to this server
- Enter your LEAP Legal OAuth 2 access token
- Start managing your law practice from Claude, Cursor, or any MCP-compatible client
Your AI becomes a legal practice assistant, helping you track matters, log time, manage contacts, and handle billing.
Who is this for?
- Solo Practitioners — manage your entire caseload and client relationships from AI assistants
- Law Firms — track matters across practice areas and monitor billable time across attorneys
- Paralegals — quickly find matter details, documents, and client information
- Legal Assistants — log time entries, manage calendars, and track bills and payments
- Law Students — practice case management and time tracking workflows
Built-in capabilities (18)
USE WHEN: - User wants to add a new client - User needs to create a new contact record - User asks to "add a new client" or "create a contact" PARAMETERS: - first_name (REQUIRED): Client's first name - last_name (REQUIRED): Client's last name - email (OPTIONAL): Client's email address - phone (OPTIONAL): Client's phone number - type (OPTIONAL): Contact type — "Client" (default), "Opposing Party", "Witness", "Other" EXAMPLES: - "Add a new client John Smith" → call with first_name="John", last_name="Smith" - "Create contact for opposing party Jane Doe, jane@example.com" → call with first_name="Jane", last_name="Doe", email="jane@example.com", type="Opposing Party" Create a new contact/client in LEAP Legal
USE WHEN: - User wants to open a new legal case - User needs to create a new matter for a client - User asks to "create a new case" or "open a matter" PARAMETERS: - name (REQUIRED): Matter/case name - contact_id (OPTIONAL): ID of the client/contact this matter belongs to - status (OPTIONAL): Initial status — "Open" (default), "Closed", "Pending" - practice_area (OPTIONAL): Practice area (e.g. "Family Law", "Criminal Defense") - description (OPTIONAL): Matter description/notes EXAMPLES: - "Create a new matter called 'Smith Divorce'" → call with name="Smith Divorce" - "Open a new criminal defense matter for client 456" → call with name="State v. Johnson", contact_id="456", practice_area="Criminal Defense" Create a new matter/case in LEAP Legal
USE WHEN: - User wants to log time spent on a matter - User needs to record billable hours - User asks to "add time entry" or "log hours" PARAMETERS: - matter_id (REQUIRED): Matter/case ID this time entry belongs to - description (REQUIRED): Description of the work performed - duration_minutes (REQUIRED): Duration in minutes - billable (OPTIONAL): Whether this is billable — true (default) or false - rate (OPTIONAL): Hourly rate for this entry EXAMPLES: - "Log 2 hours of legal research for matter 123" → call with matter_id="123", description="Legal research", duration_minutes=120 - "Add 30 minute phone call with client" → call with matter_id="123", description="Phone call with client", duration_minutes=30 Create a new time entry for billing
Useful for understanding a client's full legal portfolio. Get all matters/cases for a specific client/contact
Get detailed information for a specific bill/invoice
Get detailed information for a specific contact/client
Get detailed information for a specific matter/case
List bills/invoices in LEAP Legal
List calendar events in LEAP Legal
USE WHEN: - User wants to see all their clients and contacts - User needs to find a client by name or email - User is exploring their contact database - User asks "list my clients" or "show all contacts" PARAMETERS: - page (OPTIONAL): Page number for pagination - page_size (OPTIONAL): Results per page (default: 25, max: 100) EXAMPLES: - "List all my clients" → call with no params - "Show my contacts" → call with no params - "List contacts page 2" → call with page="2" List all contacts/clients in LEAP Legal
List custom field schemas in LEAP Legal
List documents for a specific matter
Supports filtering by status, client, practice area, and date range for flexible queries. USE WHEN: - User wants to see all their legal matters/cases - User needs to find matters by status, client, or practice area - User is exploring their law firm's caseload - User asks "what matters do I have" or "list my open cases" PARAMETERS: - status (OPTIONAL): Filter by matter status (e.g. "Open", "Closed", "Pending") - practice_area (OPTIONAL): Filter by practice area (e.g. "Family Law", "Criminal Defense") - contact_id (OPTIONAL): Filter by specific client/contact ID - page (OPTIONAL): Page number for pagination - page_size (OPTIONAL): Results per page (default: 25, max: 100) EXAMPLES: - "List all my open matters" → call with status="Open" - "Show my family law matters" → call with practice_area="Family Law" - "List all matters" → call with no params List all matters/cases in LEAP Legal Software
List payments received in LEAP Legal
List tasks in LEAP Legal
Supports filtering by matter, user, and date range. USE WHEN: - User wants to see all logged time entries - User needs to review billable hours for a matter - User is preparing invoices or reviewing time reports - User asks "show my time entries" or "list billable hours" PARAMETERS: - matter_id (OPTIONAL): Filter by specific matter ID - date_from (OPTIONAL): Start date filter (YYYY-MM-DD) - date_to (OPTIONAL): End date filter (YYYY-MM-DD) - page (OPTIONAL): Page number for pagination - page_size (OPTIONAL): Results per page (default: 25, max: 100) EXAMPLES: - "List all time entries" → call with no params - "Show time entries for matter 123" → call with matter_id="123" - "List time entries from April 1-7" → call with date_from="2026-04-01", date_to="2026-04-07" List time entries in LEAP Legal
Search matters/cases by keyword query
Update an existing matter/case in LEAP Legal
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with LEAP Legal through native MCP adapters. Connect 18 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine LEAP Legal MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across LEAP Legal queries for multi-turn workflows
LEAP Legal in LangChain
Why run LEAP Legal with Vinkius?
The LEAP Legal connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 18 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect LEAP Legal using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
LEAP Legal and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect LEAP Legal to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
LEAP Legal for LangChain
Every request between LangChain and LEAP Legal is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
What features of LEAP Legal are available through this API?
The API provides access to: Matters/Cases (CRUD operations), Contacts/Clients (create and list), Time Entries (list and create), Bills/Invoices (list and get), Payments (list), Tasks (list), Documents (list by matter), Calendar Events (list), and Custom Fields (list schemas). You can search matters by keyword, filter by status and practice area, and view all matters for a specific client.
How do I get a LEAP Legal API access token?
Visit the LEAP Developer Console at developer.leap.build and register your application. Use OAuth 2 authentication to obtain an access token. The token is used as a Bearer token in the Authorization header for all API requests. Contact LEAP support if you need help setting up API access for your firm.
Can I create new matters and contacts through the API?
Yes! You can create new matters with name, client assignment, status, and practice area. You can also create new contacts with first name, last name, email, phone, and contact type (Client, Opposing Party, Witness, etc.). Use create_leap_matter and create_leap_contact tools for these operations.
How do I track billable time with LEAP Legal API?
Use create_leap_time_entry to log time against any matter. Provide the matter ID, description of work, and duration in minutes. You can specify whether the entry is billable and set a custom hourly rate. Use list_leap_time_entries to view all time logged against a specific matter or across all matters.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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