How to Use the Contract Review Prover MCP in Claude

Q: How do I install the Contract Review Prover MCP Server on Claude Desktop?

Open your claudedesktopconfig.json file and add the server configuration under the mcpServers key. Once you save the file and restart Claude Desktop, the hammer icon will show the new tool.

Stop letting Claude Desktop summarize contracts and start forcing it to run rigorous legal risk checks directly from your chat bar.

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Connect Contract Review Prover MCP to Claude Desktop

Create your Vinkius account to connect Contract Review Prover to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Contract Review Prover with Claude Desktop

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Stop Weak Summaries in Claude Desktop

The Contract Review Prover MCP Server replaces shallow AI summaries with a cold, hard risk assessment inside your local Claude Desktop app. When you drop an NDA or MSA into the chat, the `validate_contract_review` tool executes a strict clause-by-clause analysis instead of just giving you a generic bulleted list. It scores every material clause from 1 to 5, mapping specific exposures and immediate countermeasures. This setup runs directly through your local filesystem via stdio transport. You get instant verification of ten standard legal protections, including liability caps and intellectual property ownership, without sending your data to third-party endpoints.

Calculate Exact Financial Exposure

The Contract Review Prover MCP Server forces your Claude Desktop agent to calculate actual worst-case financial liabilities using real numbers. Instead of letting the model handwave with phrases like "minimal risk," this tool runs a formula of scenario multiplied by probability and impact. It flags uncapped liabilities and unlimited indemnifications that standard AI chat runs usually miss. You see the exact monetary risk on your screen before you sign anything.

Map Negotiation Advantage and Venues

The Contract Review Prover MCP Server brings critical strategic context directly into Claude Desktop by analyzing governing law and bargaining power. It evaluates jurisdiction conflicts, arbitration rules, and cross-border enforceability issues that could ruin your position in court. The `validate_contract_review` tool maps the BATNA and switching costs for both sides. This gives you concrete talking points to push back on bad terms during active negotiations.

Setup guide

Set up Contract Review Prover MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Contract Review Prover MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Contract Review Prover MCP configuration

Copy the JSON snippet on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under contract-review-prover-mcp.

json

{
  "mcpServers": {
    "contract-review-prover-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

Independent Platform Disclaimer: Vinkius is an independent platform and is not affiliated with, endorsed by, sponsored by, verified by, or otherwise authorized by Contract Review Prover. All third-party trademarks, logos, and brand names are the property of their respective owners. Their use on this website is strictly for informational purposes to identify service compatibility and interoperability.

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Common questions about Contract Review Prover MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the server configuration under the `mcpServers` key. Once you save the file and restart Claude Desktop, the hammer icon will show the new tool.

Yes, it runs as a local subprocess using stdio transport. This means your private legal text stays on your machine during the evaluation.

You can run it on both Windows and macOS. Simply edit the configuration file in your local AppData folder to register the tool.

If the analysis fails the validation rules, you get a simple text summary instead of a full risk score. This ensures you never act on partial or corrupt legal data.

Your contracts and legal text are processed inside an isolated V8 sandbox on Vinkius. No data is stored or used for training, keeping your sensitive clauses completely private.

Use it with your favorite AI tools

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