TradingCalc
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MCP · Streamable HTTP · 12 tools

Deterministic futures risk & funding toolkit
for AI agents

TradingCalc is a calculation layer — not AI, not estimates. Same inputs always produce the same outputs. Every formula is traceable to exchange documentation and regression-tested.

https://tradingcalc.io/api/mcp

Why deterministic matters

LLM asked directly
Gives a plausible number. May be wrong. Cannot be audited. Changes between calls.
TradingCalc MCP call
Exact number from a verified formula. Same inputs, same output. Fully traceable.

We are not AI. We are the calculation layer that AI calls.

Access methods

MCP (Claude Desktop / Cursor / VS Code)
// 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"
  }
}
REST API (direct JSON-RPC)
curl -X POST https://tradingcalc.io/api/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
      "name": "liquidation",
      "arguments": {
        "side": "long",
        "entryPrice": 95000,
        "leverage": 10,
        "marginType": "isolated"
      }
    }
  }'
Anonymous
20 calls / day
Free API key
200 calls / day
Pro
10 000 calls / day

12 tools across 3 suites

Trade Planning
pnlNet PnL, ROE, fees and gross P&L for a futures trade
breakevenBreak-even price accounting for entry and exit fees
target_exitExit price required to hit a target PnL or ROE
position_sizerPosition size from account balance and max risk %
average_entryAverage entry price after DCA into a position
scenarioMulti-scenario P&L table across price targets
Risk & Margin
liquidationLiquidation price for long/short with cross or isolated margin
max_leverageMaximum safe leverage given account size and volatility
hedge_ratioShort perp size to fully hedge a spot position, including funding cost
Funding & Carry
funding_costCumulative funding cost over a holding period
funding_arbAnnualized funding arbitrage yield between two exchanges
compound_fundingCompound funding cost with position size decay

Example workflows

Pre-trade risk check
  1. 1.Call `liquidation` → get liquidation price
  2. 2.Call `max_leverage` → get safe leverage cap
  3. 3.Call `position_sizer` → get correct position size
  4. 4.Call `breakeven` → get minimum exit price
Funding carry analysis
  1. 1.Call `funding_cost` on exchange A → cost over holding period
  2. 2.Call `funding_arb` comparing exchange A vs B → annualized yield
  3. 3.Call `compound_funding` → decay-adjusted total cost
Scenario planning
  1. 1.Call `scenario` with price targets → P&L table
  2. 2.Call `target_exit` → exact price to hit target ROE
  3. 3.Call `hedge_ratio` → cost of hedging the position

Self-verification

Agents can call verify_calculators before using results. Returns pass/fail for all 22 canonical test vectors.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": { "name": "verify_calculators", "arguments": {} }
}

// Response
{
  "status": "pass",
  "passed": 22,
  "failed": 0,
  "total": 22,
  "timestamp": "2026-03-30T..."
}

Live proof: tradingcalc.io/verify

Built for

AI agents & assistants
Trading bots
Risk management systems
Multi-agent pipelines
Dashboards & analytics
Algo trading strategies

Frequently asked questions

Is TradingCalc an AI?
No. It’s a deterministic calculation layer. Same inputs always produce the same outputs.
What does “deterministic” mean?
No randomness. No estimation. Same inputs, same outputs, every time.
Does it work in Claude Desktop / Cursor / VS Code?
Yes. Quickstarts for all three are above.
Can I use it without an API key?
Yes. 20 calls/day anonymously, no signup required.
How do I verify results are correct?
Call verify_calculators via MCP, or visit /verify for the live proof page.
Which exchanges are supported?
Binance, Bybit, OKX, Hyperliquid, Aster, KuCoin, MEXC.
Can I use it in an automated trading bot?
Yes. That’s a primary use case. MCP and REST both work.
What is a composite tool?
A single call that combines multiple primitives. Example: pre_trade_check runs position sizing, liquidation, breakeven, and target exit in one call. Coming soon.
Is there a free plan?
Yes. Evaluate tier: 20 calls/day, no signup. Free API key: 200 calls/day.
Is there a programmatic payment option for agents?
Pay-per-call via x402 is planned for composite endpoints. Currently: API key billing.

Pricing

Priced by workflow, not by calculator.
Evaluate
20 calls / day
Free
no signup
Builder
200 calls / day
Free
API key
Pro Agent
25,000 calls / mo
$29
per month
Strategy
100,000 calls / mo
$79
per month
Full pricing →
Start in 30 seconds

No signup required. Add to Claude Desktop or Cursor using the config above, or call the endpoint directly.

View verification proofWeb calculators