atpar-mcp-server

MCP server for the At Par Trading API — trade crypto, manage portfolios, and access market data from any MCP-compatible AI agent.

Quick start

npx atpar-mcp-server

Requires VT_API_KEY and VT_API_SECRET environment variables.

Configuration

Claude Code (.mcp.json)

{
  "mcpServers": {
    "atpar": {
      "command": "npx",
      "args": ["-y", "atpar-mcp-server"],
      "env": {
        "VT_API_KEY": "vtk_...",
        "VT_API_SECRET": "..."
      }
    }
  }
}

Claude Desktop

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "atpar": {
      "command": "npx",
      "args": ["-y", "atpar-mcp-server"],
      "env": {
        "VT_API_KEY": "vtk_...",
        "VT_API_SECRET": "..."
      }
    }
  }
}

Environment variables

Variable	Required	Description
VT_API_KEY	Yes	API key (e.g. vtk_...)
VT_API_SECRET	Yes	Base64-encoded API secret
VT_API_URL	No	Base URL (defaults to https://api.solidusx.io). Use https://api.demo.solidusx.io for demo.

Tools (16)

Portfolio

Tool	Description
get_portfolios	List all portfolios for the authenticated user
get_portfolio_assets	Get asset balances for a portfolio
get_deposit_address	Get the deposit address for a portfolio
get_deposits	List deposits for a portfolio
get_portfolio_ledger	Get ledger entries for a portfolio

Trading

Tool	Description
place_order	Place a new order (market, limit, or swap)
get_order	Get details of a specific order
list_orders	List orders for a portfolio
cancel_order	Cancel an open order
get_order_fills	Get fills (executions) for an order

Market Data

Tool	Description
get_instruments	List all available trading instruments
get_prices	Get current prices for all instruments
get_candles	Get OHLCV candlestick data for an instrument
get_swap_liquidity	Get available swap liquidity and pricing

Notifications

Tool	Description
get_notifications	Get notifications for the authenticated user
get_unread_count	Get the count of unread notifications

Resources (2)

URI	Description
atpar://instruments	Full list of trading instruments with tick sizes, min order sizes, and status
atpar://assets	List of supported assets (currencies) on the platform

Development

npm install
npm run build
npm test

License

MIT