# financial_calculator

A financial tool on the Math MCP Server MCP server.

Agent View of the PolicyLayer registry record for `financial_calculator`. HTML page: https://policylayer.com/tools/111-test-111-math-mcp-server/financial-calculator

## Facts

- Tool: `financial_calculator`
- Server: Math MCP Server (`111-test-111/math-mcp-server`) — https://policylayer.com/tools/111-test-111-math-mcp-server.md
- Homepage: https://github.com/111-test-111/math-mcp-server
- Risk category: Financial (Critical risk)
- Registry record: grade C, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Approval-gated

## Example call (MCP tools/call, JSON-RPC 2.0)

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

## Why financial_calculator is rated Critical

The tool name explicitly references 'financial' operations. While the description is empty (reducing confidence), on a math server this could range from harmless financial math (e.g., compound interest calculations) to tools that interact with real financial systems. Given the name implies financial domain and the most severe applicable category is Financial, it is classified as Financial.

From the tool's own definition: "Tool name 'financial_calculator' suggests financial computations; description is empty and uninformative."

## Use case

AI agents use financial_calculator to commit financial operations through Math MCP Server, usually the final step of a payment, billing, or trading workflow. A call moves real money.

## Recommended policy (PolicyLayer)

Verdict: **Approval-gated**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Math MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "financial_calculator": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}
```

## Other tools on Math MCP Server (21)

- `cleanup_resources` — Destructive — https://policylayer.com/tools/111-test-111-math-mcp-server/cleanup-resources.md
- `basic_arithmetic` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/basic-arithmetic.md
- `calculus_engine` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/calculus-engine.md
- `expression_evaluator` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/expression-evaluator.md
- `matrix_calculator` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/matrix-calculator.md
- `number_theory_calculator` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/number-theory-calculator.md
- `optimization_suite` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/optimization-suite.md
- `regression_modeler` — Execute — https://policylayer.com/tools/111-test-111-math-mcp-server/regression-modeler.md
- `complex_analysis_suite` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/complex-analysis-suite.md
- `geometry_calculator` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/geometry-calculator.md
- `graph_theory_suite` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/graph-theory-suite.md
- `mathematical_functions` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/mathematical-functions.md
- `precision_calculator` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/precision-calculator.md
- `signal_processing_calculator` — Other — https://policylayer.com/tools/111-test-111-math-mcp-server/signal-processing-calculator.md
- `number_converter` — Read — https://policylayer.com/tools/111-test-111-math-mcp-server/number-converter.md
- `number_properties` — Read — https://policylayer.com/tools/111-test-111-math-mcp-server/number-properties.md
- `probability_calculator` — Read — https://policylayer.com/tools/111-test-111-math-mcp-server/probability-calculator.md
- `statistics_analyzer` — Read — https://policylayer.com/tools/111-test-111-math-mcp-server/statistics-analyzer.md
- `unit_converter` — Read — https://policylayer.com/tools/111-test-111-math-mcp-server/unit-converter.md
- `create_and_save_chart` — Write — https://policylayer.com/tools/111-test-111-math-mcp-server/create-and-save-chart.md
- `plot_function_curve` — Write — https://policylayer.com/tools/111-test-111-math-mcp-server/plot-function-curve.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=111-test-111-math-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/111-test-111-math-mcp-server