Koskamo

PrecisionCalc MCP

A remote MCP server providing deterministic, high-precision financial and business calculations for AI agents. It uses Python's decimal module to ensure exact results without float drift, supporting metrics like LTV, CAC, NPV, IRR, currency conversion, and business day logic.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

PrecisionCalc MCP logo, by inity13Community listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by inity13
You need:Free tier needs no API key (15 tool calls/day)
MCP endpoint (Streamable HTTP)
https://precisioncalc-mcp.pages.dev/mcp
Vendor documentation

What its tools do

11 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Not annotated (11)

11 of 11 have a description · 0 of 11 declare behavior hints · 0 of 9 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Calculate SaaS metrics like LTV, CAC, and churn rate
  • Convert currencies using static or live ECB rates
  • Compute net present value and internal rate of return
  • Calculate loan amortization schedules and depreciation

Source and maintenance

Community listingRegistry 2.1.1
mcp-registry: io.github.inity13/precisioncalc-mcp@2.1.1Source repository
Maintenance checked

Protocol and capabilities

Server
PrecisionCalc 2.1.0-edge
MCP protocol negotiated in check
2025-11-25
Tools
11 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  }
}

Tools

11 advertised

calculate_metric
Advertised by the server during the last successful anonymous check.

Compute a business/SaaS/finance metric with exact decimal precision. Metrics: ltv, cac, ltv_cac_ratio, payback_period_months, contribution_margin, gross_margin, churn_rate, mrr_growth_rate, arr, break_even_units, nrr, grr, rule_of_40, magic_number. Rates/margins are decimals (0.05=5%). Call list_metrics for schemas.

calculate_metric input schema
{
  "type": "object",
  "required": [
    "metric",
    "params"
  ],
  "properties": {
    "metric": {
      "type": "string"
    },
    "params": {
      "type": "object"
    },
    "currency": {
      "type": "string",
      "default": "USD"
    }
  }
}
list_metrics
Advertised by the server during the last successful anonymous check.

List every supported metric with descriptions and required/optional params.

list_metrics input schema
{
  "type": "object",
  "properties": {}
}
currency_convert
Advertised by the server during the last successful anonymous check.

Convert an amount between major currencies (USD, EUR, GBP, JPY, CAD, AUD, CHF, CNY, INR) with Decimal precision. Static offline table on the free tier; live/historical ECB rates (date/live=true) require a paid plan.

currency_convert input schema
{
  "type": "object",
  "required": [
    "amount",
    "from_currency",
    "to_currency"
  ],
  "properties": {
    "date": {
      "type": "string"
    },
    "live": {
      "type": "boolean"
    },
    "amount": {
      "type": "number"
    },
    "to_currency": {
      "type": "string"
    },
    "from_currency": {
      "type": "string"
    }
  }
}
business_days
Advertised by the server during the last successful anonymous check.

Business-day arithmetic honoring weekends + regional holidays. operation: add_business_days (needs days, negative ok) | count_business_days (needs end_date, inclusive) | next_business_day | previous_business_day. region: US | UK | EU | NONE. custom_holidays: list of YYYY-MM-DD.

business_days input schema
{
  "type": "object",
  "required": [
    "operation",
    "start_date"
  ],
  "properties": {
    "days": {
      "type": "integer"
    },
    "region": {
      "type": "string",
      "default": "US"
    },
    "end_date": {
      "type": "string"
    },
    "operation": {
      "type": "string"
    },
    "start_date": {
      "type": "string"
    },
    "custom_holidays": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}
compound_growth
Advertised by the server during the last successful anonymous check.

Compound-interest/growth math. operation: future_value (rate, years, present_value) | present_value (rate, years, future_value) | cagr (begin_value, end_value, years). rate is annual decimal (0.08=8%). compounding: daily|weekly|monthly|quarterly|semiannually|annually|continuous.

compound_growth input schema
{
  "type": "object",
  "required": [
    "operation"
  ],
  "properties": {
    "rate": {
      "type": "number"
    },
    "years": {
      "type": "number"
    },
    "currency": {
      "type": "string",
      "default": "USD"
    },
    "end_value": {
      "type": "number"
    },
    "operation": {
      "type": "string"
    },
    "begin_value": {
      "type": "number"
    },
    "compounding": {
      "type": "string",
      "default": "annually"
    },
    "future_value": {
      "type": "number"
    },
    "present_value": {
      "type": "number"
    }
  }
}
net_present_value
Advertised by the server during the last successful anonymous check.

Net Present Value (discounted cash flow). NPV = sum(CF_t/(1+rate)^t). cashflows[0] = period 0 (usually the negative outlay).

net_present_value input schema
{
  "type": "object",
  "required": [
    "rate",
    "cashflows"
  ],
  "properties": {
    "rate": {
      "type": "number"
    },
    "currency": {
      "type": "string",
      "default": "USD"
    },
    "cashflows": {
      "type": "array",
      "items": {
        "type": "number"
      }
    }
  }
}
internal_rate_of_return
Advertised by the server during the last successful anonymous check.

Internal Rate of Return: per-period rate where NPV=0 (Newton + bisection). Requires a sign change in cashflows.

internal_rate_of_return input schema
{
  "type": "object",
  "required": [
    "cashflows"
  ],
  "properties": {
    "guess": {
      "type": "number",
      "default": 0.1
    },
    "cashflows": {
      "type": "array",
      "items": {
        "type": "number"
      }
    }
  }
}
loan_amortization
Advertised by the server during the last successful anonymous check.

Level-payment loan: monthly payment, total interest, payoff, and (optional) full schedule. payment = P*r/(1-(1+r)^-n), r=annual_rate/12.

loan_amortization input schema
{
  "type": "object",
  "required": [
    "principal",
    "annual_rate",
    "term_months"
  ],
  "properties": {
    "currency": {
      "type": "string",
      "default": "USD"
    },
    "principal": {
      "type": "number"
    },
    "annual_rate": {
      "type": "number"
    },
    "term_months": {
      "type": "integer"
    },
    "extra_payment": {
      "type": "number",
      "default": 0
    },
    "include_schedule": {
      "type": "boolean",
      "default": false
    }
  }
}
depreciation
Advertised by the server during the last successful anonymous check.

Asset depreciation schedule. method: straight_line | declining_balance | sum_of_years_digits. Book value converges to salvage_value.

depreciation input schema
{
  "type": "object",
  "required": [
    "method",
    "cost",
    "salvage_value",
    "useful_life_years"
  ],
  "properties": {
    "cost": {
      "type": "number"
    },
    "method": {
      "type": "string"
    },
    "currency": {
      "type": "string",
      "default": "USD"
    },
    "salvage_value": {
      "type": "number"
    },
    "useful_life_years": {
      "type": "integer"
    }
  }
}
batch_calculate
Advertised by the server during the last successful anonymous check.

PAID FEATURE. Run many calculations in one request. calls: list of {tool, arguments} (max 100). One failure never aborts the batch.

batch_calculate input schema
{
  "type": "object",
  "required": [
    "calls"
  ],
  "properties": {
    "calls": {
      "type": "array",
      "items": {
        "type": "object"
      }
    }
  }
}
health_check
Advertised by the server during the last successful anonymous check.

Server health/status metadata.

health_check input schema
{
  "type": "object",
  "properties": {}
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
244 ms
95th percentile latency
244 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 244 ms · metadata changed · 11 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http precisioncalc-mcp https://precisioncalc-mcp.pages.dev/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add precisioncalc-mcp --url https://precisioncalc-mcp.pages.dev/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable precisioncalc-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "precisioncalc-mcp": {
      "url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "precisioncalc-mcp": {
      "type": "streamableHttp",
      "url": "https://precisioncalc-mcp.pages.dev/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start precisioncalc-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "precisioncalc-mcp": {
      "type": "http",
      "url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http precisioncalc-mcp https://precisioncalc-mcp.pages.dev/mcp

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://precisioncalc-mcp.pages.dev/mcp

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "precisioncalc-mcp": {
      "serverUrl": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}

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