# io.github.inity13/precisioncalc-mcp (remote · precisioncalc-mcp.pages.dev)

High-precision finance & business calculations for AI agents — exact decimals, never floats.

- Trust score: 75/100 (medium)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-22

## Components

- remote · `precisioncalc-mcp.pages.dev`: 75/100 (this document), [markdown](https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp.md), [page](https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp)
- npm · `precisioncalc-mcp`: 78/100, [markdown](https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp-2.md), [page](https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp-2)

## Channel facts

- Endpoint: `https://precisioncalc-mcp.pages.dev/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `2.1.1`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-22.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 11 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 852 tokens (~77/item across 11 items; 11 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 67/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 11 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the io.github.inity13/precisioncalc-mcp server?

io.github.inity13/precisioncalc-mcp is a hosted endpoint at https://precisioncalc-mcp.pages.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http inity13-precisioncalc-mcp 'https://precisioncalc-mcp.pages.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "inity13-precisioncalc-mcp": {
      "url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "inity13-precisioncalc-mcp": {
      "type": "http",
      "url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.inity13-precisioncalc-mcp]
url = "https://precisioncalc-mcp.pages.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "inity13-precisioncalc-mcp": {
      "type": "remote",
      "url": "https://precisioncalc-mcp.pages.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add inity13-precisioncalc-mcp --url 'https://precisioncalc-mcp.pages.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  inity13-precisioncalc-mcp:
    url: "https://precisioncalc-mcp.pages.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "inity13-precisioncalc-mcp": {
      "Transport": "http",
      "Url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add inity13-precisioncalc-mcp -t streamable-http -u 'https://precisioncalc-mcp.pages.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "inity13-precisioncalc-mcp": {
      "type": "http",
      "url": "https://precisioncalc-mcp.pages.dev/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-09 (score 75, +1)

- [security] Stability: 0.97 → pass

### 2026-09-07 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-05 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-03 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-01 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 70 to 73. That category is still filling its 30-day observation window: 21 days of observed history at the previous scan, 22 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-30 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-27 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-26 (score 68, +2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

## MCP tools (11)

### `calculate_metric` (~115 tokens)

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.

Input parameters:

- `currency` (string)
- `metric` (string, required)
- `params` (object, required)

### `list_metrics` (~20 tokens)

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

### `currency_convert` (~99 tokens)

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.

Input parameters:

- `amount` (number, required)
- `date` (string)
- `from_currency` (string, required)
- `live` (boolean)
- `to_currency` (string, required)

### `business_days` (~115 tokens)

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.

Input parameters:

- `custom_holidays` (array)
- `days` (integer)
- `end_date` (string)
- `operation` (string, required)
- `region` (string)
- `start_date` (string, required)

### `compound_growth` (~149 tokens)

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.

Input parameters:

- `begin_value` (number)
- `compounding` (string)
- `currency` (string)
- `end_value` (number)
- `future_value` (number)
- `operation` (string, required)
- `present_value` (number)
- `rate` (number)
- `years` (number)

### `net_present_value` (~70 tokens)

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

Input parameters:

- `cashflows` (array, required)
- `currency` (string)
- `rate` (number, required)

### `internal_rate_of_return` (~53 tokens)

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

Input parameters:

- `cashflows` (array, required)
- `guess` (number)

### `loan_amortization` (~96 tokens)

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

Input parameters:

- `annual_rate` (number, required)
- `currency` (string)
- `extra_payment` (number)
- `include_schedule` (boolean)
- `principal` (number, required)
- `term_months` (integer, required)

### `depreciation` (~73 tokens)

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

Input parameters:

- `cost` (number, required)
- `currency` (string)
- `method` (string, required)
- `salvage_value` (number, required)
- `useful_life_years` (integer, required)

### `batch_calculate` (~49 tokens)

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

Input parameters:

- `calls` (array, required)

### `health_check` (~13 tokens)

Server health/status metadata.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp#diagnostics

## Score history

- 2026-09-22: 75
- 2026-09-21: 75
- 2026-09-20: 75
- 2026-09-19: 75
- 2026-09-18: 75
- 2026-09-17: 75
- 2026-09-16: 75
- 2026-09-15: 75
- 2026-09-14: 75
- 2026-09-13: 75
- 2026-09-12: 75
- 2026-09-11: 75
- 2026-09-10: 75
- 2026-09-09: 75
- 2026-09-08: 74
- 2026-09-07: 74
- 2026-09-06: 73
- 2026-09-05: 73
- 2026-09-04: 72
- 2026-09-03: 72
- 2026-09-02: 71
- 2026-09-01: 71
- 2026-08-31: 70
- 2026-08-30: 70
- 2026-08-29: 69
- 2026-08-28: 69
- 2026-08-27: 69
- 2026-08-26: 68
- 2026-08-25: 66
- 2026-08-24: 65

## Common questions

### What is the io.github.inity13/precisioncalc-mcp server?

io.github.inity13/precisioncalc-mcp is listed in the public MCP registry as io.github.inity13/precisioncalc-mcp. High-precision finance & business calculations for AI agents, exact decimals, never floats. This page covers its hosted endpoint (https://precisioncalc-mcp.pages.dev/mcp).

### Is the io.github.inity13/precisioncalc-mcp server safe to use?

io.github.inity13/precisioncalc-mcp scores 75 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the io.github.inity13/precisioncalc-mcp server expose?

io.github.inity13/precisioncalc-mcp exposes 11 tools: calculate_metric, list_metrics, currency_convert, business_days, compound_growth, and 6 more. Their descriptions and schemas cost roughly 852 tokens of context every time the server is loaded.

### Does the io.github.inity13/precisioncalc-mcp server require authentication?

No. We connected to io.github.inity13/precisioncalc-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the io.github.inity13/precisioncalc-mcp server still maintained?

io.github.inity13/precisioncalc-mcp is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://precisioncalc-mcp.pages.dev/mcp
- Repository: https://github.com/inity13/precisioncalc-mcp
- Changelog RSS feed: https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp.json
- HTML version of this page: https://verifymcp.io/servers/inity13-precisioncalc-mcp/precisioncalc-mcp