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Tachtien MCP

Tachtien MCP

by simonvreeman
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Remote

Tachtien MCP

An MCP server for the Dutch word tachtien: ontelbaar veel, uncountably many. Look up the word, its examples and mentions, rewrite vague amounts as tachtien, or ask whether something counts as tachtien.

Endpoint: https://mcp.tachtien.nl/mcp (Streamable HTTP, stateless, no auth) Server card: /.well-known/mcp/server-card.json

Connect

claude mcp add --transport http tachtien https://mcp.tachtien.nl/mcp

Related MCP server: Dutch-law-mcp

ChatGPT

In ChatGPT on the web: open Plugins, choose + and then Add custom MCP server. Name it, for example, Tachtien, enter https://mcp.tachtien.nl/mcp as the endpoint, choose no authentication and finish creating it. Then install the plugin and use @Tachtien in a new chat.

Whether you can add your own MCP servers depends on your ChatGPT plan and your workspace settings. See the official ChatGPT setup guide for current steps.

Other compatible MCP clients

{ "mcpServers": { "tachtien": { "type": "http", "url": "https://mcp.tachtien.nl/mcp" } } }

Tools

Tool

Input

Returns

define

none

syllables, part of speech, IPA, definition, origin

examples

random?: boolean

example dialogues, or one at random

mentions

source?: "twitter" | "press" | "cityguys"

external mentions with title, source and URL

tachtienify

text: string

text with vague large amounts and estimates of 50 or more replaced by tachtien, the count, and each replaced phrase with its index

is_tachtien

amount: number | string

{ isTachtien, reason }

Estimates ("ongeveer honderd", "zo'n 60", "~200", "100+") and lower bounds ("meer dan 50", "ruim honderd") are tachtien from 50 up, because nobody counted them. Exact numbers, smaller estimates and years ("rond 2014") are not.

Prompts

Prompt

Arguments

What it does

uitleg

taal?: "Nederlands" | "English"

explains the word, with the entry embedded

herschrijf

tekst: string

runs tachtienify on the server, then asks the model to fix the grammar

zin

onderwerp?: string

asks for a new example sentence in the style of the site

taal and onderwerp support completion/complete.

Resource tachtien://entry is the whole entry as Markdown. Content is Dutch, as on the site; tool descriptions are English.

curl -s https://mcp.tachtien.nl/mcp \
  -H 'content-type: application/json' -H 'accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"tachtienify","arguments":{"text":"heel veel kopstootjes"}}}'

Develop

npm install
npm run dev           # wrangler dev at http://localhost:8787 (MCP at /mcp)
npm test              # vitest in workerd
npm run check:drift   # compare src/entry.js with the live tachtien.nl
npm run deploy        # wrangler deploy to mcp.tachtien.nl

The first deploy creates the mcp.tachtien.nl DNS record and certificate, provided the tachtien.nl zone is in the same Cloudflare account.

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityMaintained
ResponsivenessNo issues

Resources

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