# Gross-to-Net Salary Calculator (Germany & UK) (remote · syntropicapi.com)

Net pay to the cent, every deduction and the employer's cost for Germany and the UK, computed with…

- Trust score: 77/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-04

## Components

- remote · `syntropicapi.com`: 77/100 (this document), [markdown](https://verifymcp.io/servers/com-syntropicapi-salary-net/mcp-salary-net-mcp.md), [page](https://verifymcp.io/servers/com-syntropicapi-salary-net/mcp-salary-net-mcp)

## Channel facts

- Endpoint: `https://syntropicapi.com/mcp/salary-net/mcp`
- Transports: `streamable-http`
- Auth: `required`
- Version: `1.0.0`

## 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 2026-10-04.

- **Endpoint Security**: 83/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token.
  - 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**: 74/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 555 tokens (~111/item across 5 items; 5 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 17/100
  - Stability observed for 5 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **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.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the Gross-to-Net Salary Calculator (Germany & UK) MCP server?

Gross-to-Net Salary Calculator (Germany & UK) is a hosted endpoint at https://syntropicapi.com/mcp/salary-net/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-syntropicapi-salary-net 'https://syntropicapi.com/mcp/salary-net/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-syntropicapi-salary-net": {
      "url": "https://syntropicapi.com/mcp/salary-net/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-syntropicapi-salary-net": {
      "type": "http",
      "url": "https://syntropicapi.com/mcp/salary-net/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-syntropicapi-salary-net]
url = "https://syntropicapi.com/mcp/salary-net/mcp"
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add com-syntropicapi-salary-net --url 'https://syntropicapi.com/mcp/salary-net/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-syntropicapi-salary-net:
    url: "https://syntropicapi.com/mcp/salary-net/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-syntropicapi-salary-net": {
      "Transport": "http",
      "Url": "https://syntropicapi.com/mcp/salary-net/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-syntropicapi-salary-net -t streamable-http -u 'https://syntropicapi.com/mcp/salary-net/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-syntropicapi-salary-net": {
      "type": "http",
      "url": "https://syntropicapi.com/mcp/salary-net/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.

### 2026-10-04 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-01 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-30 (score 75, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-29 (score 75)

First indexed and scored.

## MCP tools (5)

### `calculate_net_salary` (~182 tokens)

Gross to net: net pay, deductions and employer cost

Computes net pay from gross pay for one pay period with the country's official payroll algorithm.
Returns every employee deduction and employer contribution as a line with the rule applied and its source,
the employer's total cost, annualised figures and the assumptions made.

Input parameters:

- `country` (string, required): DE or UK (GB is accepted as UK)
- `de`: German profile (used when country is DE)
- `gross` (number, required): Gross pay for the period, in EUR (DE) or GBP (UK)
- `period` (string): Pay period of the amount: year, month, week, day (DE only), fortnight or four_weeks (UK only)
- `uk`: UK profile (used when country is UK)
- `year` (integer): Tax year. UK: the year the tax year starts in (2026 = 2026-27)

Output parameters:

- `annual` (object): The period's figures scaled to a year (periods per year × amount)
- `country` (string): DE or UK
- `currency` (string): EUR or GBP
- `deduction_rate` (number): Employee deductions in % of gross
- `disclaimer` (string)
- `employee_deductions` (number): Sum of the employee lines
- `employer_contributions` (number): Sum of the employer lines
- `employer_cost` (number): Gross plus employer contributions
- `gross` (number): Gross pay for the period
- `lines` (array): Every deduction and contribution with rule and source
- `net` (number): Net pay: gross minus all employee deductions
- `notes` (array): Assumptions and what is not included
- `period` (string): Pay period of all amounts
- `profile` (object): The profile as applied, including defaults that were filled in
- `sources` (array): Official publications used
- `tax_year` (string): Tax year label, e.g. 2026 or 2026-27
- `year` (integer): Tax year (UK: year the tax year starts)

### `calculate_gross_salary` (~181 tokens)

Net to gross: the gross pay needed for a target net

Finds the smallest gross pay (to the cent) whose net pay reaches the target, by bisection over the same engine
as /net. Returns the full breakdown for that gross pay and the remaining difference to the target.

Input parameters:

- `country` (string, required): DE or UK (GB is accepted as UK)
- `de`: German profile (used when country is DE)
- `net` (number, required): Target net pay for the period, in EUR (DE) or GBP (UK)
- `period` (string): Pay period of the amount: year, month, week, day (DE only), fortnight or four_weeks (UK only)
- `uk`: UK profile (used when country is UK)
- `year` (integer): Tax year. UK: the year the tax year starts in (2026 = 2026-27)

Output parameters:

- `annual` (object): The period's figures scaled to a year (periods per year × amount)
- `country` (string): DE or UK
- `currency` (string): EUR or GBP
- `deduction_rate` (number): Employee deductions in % of gross
- `difference` (number): net - target_net (0 when the target is reachable to the cent)
- `disclaimer` (string)
- `employee_deductions` (number): Sum of the employee lines
- `employer_contributions` (number): Sum of the employer lines
- `employer_cost` (number): Gross plus employer contributions
- `gross` (number): Gross pay for the period
- `lines` (array): Every deduction and contribution with rule and source
- `net` (number): Net pay: gross minus all employee deductions
- `notes` (array): Assumptions and what is not included
- `period` (string): Pay period of all amounts
- `profile` (object): The profile as applied, including defaults that were filled in
- `sources` (array): Official publications used
- `target_net` (number): The net pay that was asked for
- `tax_year` (string): Tax year label, e.g. 2026 or 2026-27
- `year` (integer): Tax year (UK: year the tax year starts)

### `compare_net_salaries` (~71 tokens)

Compare net pay across countries, years and profiles

Runs up to 8 gross-to-net scenarios and returns them side by side: net, deductions, employer cost and the
split into income tax and social contributions. Amounts stay in each country's currency (no FX conversion).

Input parameters:

- `scenarios` (array, required): Up to 8 gross-to-net scenarios

Output parameters:

- `disclaimer` (string)
- `notes` (array)
- `rows` (array)

### `get_payroll_parameters` (~74 tokens)

Thresholds and rates used for a country and year

Allowances, tax bands, contribution rates and ceilings the engine uses for the country and year, each with
its official source.

Input parameters:

- `country` (string, required): DE or UK (GB is accepted)
- `year` (integer): Tax year (UK: start year, 2026 = 2026-27)

Output parameters:

- `country` (string)
- `currency` (string)
- `parameters` (array)
- `tax_year` (string)
- `year` (integer)

### `list_salary_countries` (~47 tokens)

Countries, tax years and profile fields covered

Coverage: which countries and tax years are available, which pay periods and profile fields they accept, the
official test data each engine is checked against, and which countries are planned next.

Output parameters:

- `countries` (array)

## Diagnostics

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

## Score history

- 2026-10-04: 77
- 2026-10-03: 76
- 2026-10-02: 76
- 2026-10-01: 76
- 2026-09-30: 75
- 2026-09-29: 75

## Common questions

### What is the Gross-to-Net Salary Calculator (Germany & UK) MCP server?

Gross-to-Net Salary Calculator (Germany & UK) is an MCP server listed in the public MCP registry as com.syntropicapi/salary-net. Net pay to the cent, every deduction and the employer's cost for Germany and the UK, computed with… This page covers its hosted endpoint (https://syntropicapi.com/mcp/salary-net/mcp).

### Is the Gross-to-Net Salary Calculator (Germany & UK) MCP server safe to use?

Gross-to-Net Salary Calculator (Germany & UK) scores 77 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 Gross-to-Net Salary Calculator (Germany & UK) MCP server expose?

Gross-to-Net Salary Calculator (Germany & UK) exposes 5 tools: calculate_net_salary, calculate_gross_salary, compare_net_salaries, get_payroll_parameters, list_salary_countries. Their descriptions and schemas cost roughly 555 tokens of context every time the server is loaded.

### Does the Gross-to-Net Salary Calculator (Germany & UK) MCP server require authentication?

Yes. Gross-to-Net Salary Calculator (Germany & UK) asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.

### Is the Gross-to-Net Salary Calculator (Germany & UK) MCP server still maintained?

Gross-to-Net Salary Calculator (Germany & UK) is still listed as active in the MCP registry. We last reached this channel on 4 October 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://syntropicapi.com/mcp/salary-net/mcp
- Authorisation metadata: https://syntropicapi.com/.well-known/oauth-protected-resource/mcp/salary-net/mcp
- Website: https://syntropicapi.com/apis/salary-net
- Changelog RSS feed: https://verifymcp.io/servers/com-syntropicapi-salary-net/mcp-salary-net-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-syntropicapi-salary-net/mcp-salary-net-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-syntropicapi-salary-net/mcp-salary-net-mcp