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Automatic setup

The fastest way — the CLI configures it for you: 
export ARIS_API_KEY=aris_yourkey
npx @aris/cli init
# When prompted "Set up ARIS MCP for Cursor?", press Y

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Manual setup

Add to .cursor/mcp.json in your project (or ~/.cursor/mcp.json for all projects):
.cursor/mcp.json
{
  "mcpServers": {
    "aris": {
      "command": "npx",
      "args": ["-y", "@aris/mcp", "--key", "aris_yourkey"]
    }
  }
}

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Using it

Once configured, the ARIS tools are available in Cursor Agent mode. Try:
  • “Search for 3-bedroom homes under $400k in Denver”
  • “Calculate the mortgage on a $500k home with 10% down”
  • “What are the schools like in Plano, TX?”
  • “Ask ARIS about the buying process for first-time homebuyers”
Cursor will automatically call the appropriate ARIS tool and include the results.

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Environment variable alternative

.cursor/mcp.json
{
  "mcpServers": {
    "aris": {
      "command": "npx",
      "args": ["-y", "@aris/mcp"],
      "env": {
        "ARIS_API_KEY": "aris_yourkey"
      }
    }
  }
}