TradingCalc
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MCP Server · Streamable HTTP · 19 tools

MCP trading calculator
for AI agents

Give your AI agent exact crypto futures math via MCP — not hallucinated estimates. TradingCalc is the deterministic computation layer your agent calls for position size, liquidation price, funding cost, PnL, and more.

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19 MCP tools·7 exchanges normalized·Self-verifiable formulas·Free tier — no signup

Why AI agents need exact calculations

When an LLM answers “what's my liquidation price at 10× leverage?”, it approximates. For a position at $83,000 BTC, the difference between “approximately $75,000” and the exact $75,155 could mean the difference between holding through a dip and getting liquidated on one.

Agent without MCP
Asks the LLM to calculate liquidation price. Gets a plausible number. May be 5–15% off. Error compounds across multi-step workflows.
Agent with TradingCalc MCP
Calls workflow.run_liquidation_safety. Gets the exact number from a verified formula. Same inputs, same outputs.

Install in 30 seconds

Claude Desktop
// ~/.claude/claude_desktop_config.json
{
  "mcpServers": {
    "tradingcalc": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://tradingcalc.io/api/mcp"]
    }
  }
}
Cursor / VS Code
{
  "tradingcalc": {
    "url": "https://tradingcalc.io/api/mcp"
  }
}
With API key (higher rate limits)
{
  "mcpServers": {
    "tradingcalc": {
      "command": "npx",
      "args": [
        "-y", "mcp-remote",
        "https://tradingcalc.io/api/mcp",
        "--header", "Authorization: Bearer tc_your_key"
      ]
    }
  }
}

Example — pre-trade risk check

One MCP call that orchestrates position sizing, liquidation, break-even, and funding cost together.

MCP / REST call
{
  "name": "workflow.run_pre_trade_check",
  "arguments": {
    "side": "long",
    "entry_price": 83000,
    "stop_loss": 81000,
    "account_balance": 5000,
    "risk_pct": 2,
    "leverage": 5,
    "funding_rate": 0.0001,
    "hold_hours": 24
  }
}
Response
{
  "safety": "ok",
  "recommended_size": 0.04861,
  "notional": 4034.56,
  "margin_required": 806.91,
  "liquidation_price": 66895.00,
  "liquidation_distance_pct": 19.40,
  "breakeven_price": 83023.51,
  "funding_cost_24h": 1.21
}

19 tools across 4 suites

Position & Risk
  • Position size from account balance and max risk %
  • Liquidation price — isolated and cross margin
  • Max safe leverage from volatility and drawdown
  • Full pre-trade risk check in one call
PnL & Targets
  • Net PnL with all fees
  • Break-even price
  • Target exit price for any profit goal
  • Scenario table across price range
Funding & Carry
  • Cumulative funding cost over hold period
  • Carry trade yield and verdict
  • Funding arbitrage between two exchanges
  • Compound funding projection
Entry & Exit
  • Weighted average entry (DCA)
  • Scale-out P&L and weighted average exit
  • Hedge ratio for spot positions

Full tool reference at tradingcalc.io/for-agents — includes parameters, schemas, and workflow examples.

Self-verifiable formulas

22 canonical test vectors

Each formula validated against exact arithmetic proof. Vectors run on every deployment.

system.verify tool

Call via MCP to run all vectors and confirm correctness before using results in your agent.

Public proof page

SSR, no cache — runs the full test suite live on every request. Verifiable independently.

View live verification report →

Start in 30 seconds

No signup required for free tier. Add to Claude Desktop, Cursor, or VS Code using the config above.

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