How do I connect an AI agent to NL Tax Calculator?

Use the MCP streamable HTTP endpoint https://nltaxcalculator.nl/dutch-tax/api/mcp.

Catalog › nl.nltaxcalculator/dutch-tax

Is NL Tax Calculator reliable?

Reliable (measured) Yes. Faceabot measured NL Tax Calculator 8 times: 100% of checks succeeded, including the last 8 in a row (last check 2026-10-19 21:15 UTC). It also does the job: its real read-only task worked 8 of 8 times.

Last check: 2026-10-19 21:15 UTC · answered in 6415 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Dutch tax: net salary, full tax return, Box 3 and refunds, ZZP, mortgage, toeslagen, visa salary.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.1.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "dutch-tax": {
      "url": "https://nltaxcalculator.nl/dutch-tax/api/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"nl.nltaxcalculator/dutch-tax"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Does the job (tested) — Faceabot asked box3_wealth_tax to do a small read-only task 8 time(s): 8 returned a real result, the last 8 in a row. Last result: ok in 4284 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 21:15 UTC	✅ ok	✅ done	6415 ms
2026-10-19 08:31 UTC	✅ ok	✅ done	8998 ms
2026-10-18 15:45 UTC	✅ ok	✅ done	7736 ms
2026-10-18 04:50 UTC	✅ ok	✅ done	7728 ms
2026-10-17 20:55 UTC	✅ ok	✅ done	4762 ms
2026-10-17 12:25 UTC	✅ ok	✅ done	6867 ms
2026-10-17 04:45 UTC	✅ ok	✅ done	6534 ms
2026-10-16 21:00 UTC	✅ ok	✅ done	6051 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Publisher of NL Tax Calculator?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/nl.nltaxcalculator/dutch-tax.svg)](https://faceabot.com/tools/nl.nltaxcalculator/dutch-tax)

Data in JSON: /api/catalog?id=nl.nltaxcalculator/dutch-tax · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

Best tool by topic · Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Reliability data · Faceabot app · Faceabot → AI assistants · What AI agents cannot find yet · Add Faceabot to your AI · Badge for tool publishers · Help · Privacy · Terms