# MonsiTools Calculators (remote · monsitools.com)

Find and run exact business, finance and SaaS calculators instead of guessing the math.

- Trust score: 86/100 (high trust)
- Change this week: +2
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `monsitools.com`: 86/100 (this document), [markdown](https://verifymcp.io/servers/com-monsitools-calculators/monsitools.md), [page](https://verifymcp.io/servers/com-monsitools-calculators/monsitools)

## Channel facts

- Endpoint: `https://monsitools.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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 2026-11-05.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 73/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 319 tokens (~106/item across 3 items; 3 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**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% 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 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the MonsiTools Calculators MCP server?

MonsiTools Calculators is a hosted endpoint at https://monsitools.com/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 com-monsitools-calculators 'https://monsitools.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-monsitools-calculators": {
      "url": "https://monsitools.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-monsitools-calculators": {
      "type": "http",
      "url": "https://monsitools.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-monsitools-calculators]
url = "https://monsitools.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-monsitools-calculators": {
      "type": "remote",
      "url": "https://monsitools.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-monsitools-calculators --url 'https://monsitools.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-monsitools-calculators:
    url: "https://monsitools.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-monsitools-calculators": {
      "Transport": "http",
      "Url": "https://monsitools.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-monsitools-calculators -t streamable-http -u 'https://monsitools.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-monsitools-calculators": {
      "type": "http",
      "url": "https://monsitools.com/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.

### 2026-11-01 (score 86, +1)

- [security] Stability: 0.97 → pass

### 2026-10-30 (score 85, +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.

### 2026-10-28 (score 84, +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.

### 2026-10-26 (score 83, +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.

### 2026-10-24 (score 82, +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.

### 2026-10-22 (score 81, +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.

### 2026-10-19 (score 80, +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.

### 2026-10-17 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (3)

### `search_calculators` (~113 tokens)

Search MonsiTools calculators

Find MonsiTools calculators by keyword (for example 'runway', 'break even', 'roas', 'loan payment'). Returns each match's slug, name, category and input names. Use describe_calculator for details, then calculate to run one.

Input parameters:

- `category` (string): Optional exact category name, e.g. 'SaaS Metrics'.
- `limit` (integer): Maximum results (default 10).
- `query` (string, required): Words to match against calculator names, categories and input names.

### `describe_calculator` (~49 tokens)

Describe a calculator

Returns a calculator's name, category, formula, input names and page URL, given its slug.

Input parameters:

- `slug` (string, required): Calculator slug, e.g. 'saas-runway-calculator'.

### `calculate` (~95 tokens)

Run a calculator

Runs a MonsiTools calculator on the given inputs and returns the result. Works without a key for 10 calculations a day per IP address. A MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting, removes the daily limit.

Input parameters:

- `inputs` (object, required): Input name to number, for every input the calculator lists.
- `slug` (string, required): Calculator slug from search_calculators.

## Diagnostics

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

## Score history

- 2026-11-05: 86
- 2026-11-04: 86
- 2026-11-03: 86
- 2026-11-02: 86
- 2026-11-01: 86
- 2026-10-31: 85
- 2026-10-30: 85
- 2026-10-29: 84
- 2026-10-28: 84
- 2026-10-27: 83
- 2026-10-26: 83
- 2026-10-25: 82
- 2026-10-24: 82
- 2026-10-23: 81
- 2026-10-22: 81
- 2026-10-21: 80
- 2026-10-20: 80
- 2026-10-19: 80
- 2026-10-18: 79
- 2026-10-17: 79
- 2026-10-16: 78
- 2026-10-15: 78
- 2026-10-14: 77
- 2026-10-13: 77
- 2026-10-12: 76
- 2026-10-10: 75
- 2026-10-07: 75
- 2026-10-04: 74
- 2026-10-03: 73
- 2026-10-02: 73

## Common questions

### What is the MonsiTools Calculators MCP server?

MonsiTools Calculators is an MCP server listed in the public MCP registry as com.monsitools/calculators. Find and run exact business, finance and SaaS calculators instead of guessing the math. This page covers its hosted endpoint (https://monsitools.com/mcp).

### Is the MonsiTools Calculators MCP server safe to use?

MonsiTools Calculators scores 86 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 MonsiTools Calculators MCP server expose?

MonsiTools Calculators exposes 3 tools: search_calculators, describe_calculator, calculate. Their descriptions and schemas cost roughly 257 tokens of context every time the server is loaded.

### Does the MonsiTools Calculators MCP server require authentication?

No. We connected to MonsiTools Calculators without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the MonsiTools Calculators MCP server still maintained?

MonsiTools Calculators is still listed as active in the MCP registry. We last reached this channel on 5 November 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://monsitools.com/mcp
- Website: https://monsitools.com/developers
- Changelog RSS feed: https://verifymcp.io/servers/com-monsitools-calculators/monsitools.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-monsitools-calculators/monsitools.json
- HTML version of this page: https://verifymcp.io/servers/com-monsitools-calculators/monsitools