MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

Tachtien

By tachtien.nl

Look up the Dutch word tachtien (uncountably many) and rewrite vague amounts as tachtien.

WebsiteSource code
Connect to Tachtien
Checks passed
13 / 22

1 failed · 8 not measured

Median response
142 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
5

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Outdated check

Last connection measurement is over 24 hours old. Current availability is unknown.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
400
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 142 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name tachtien.

  • Pass
    Lists tools

    tools/list returned 5 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 142 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 142 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Pass
    Parameters documented

    4 of 4 parameters have a description (100%). The bar is 80%.

  • Pass
    Safety hints

    Every tool sets readOnlyHint or destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Fail
    Website matches publisher

    The website host does not match the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Pass
    Recently updated

    Updated 2026-11-04T16:10:57.110761Z, within 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using Tachtien

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

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

Capabilities

Tools 5

define

Define the Dutch word 'tachtien' (a cardinal number meaning 'ontelbaar veel', uncountably many): syllables, part of speech, IPA pronunciation, definition and origin, as on tachtien.nl. Content is in Dutch.

Discovered
examples

Example sentences that use 'tachtien', in Dutch. Each example is a short dialogue of one or more lines.

Discovered
is_tachtien

Judge whether an amount counts as 'tachtien' (uncountably many) and give a tongue-in-cheek reason in Dutch. Exact numbers never do (18 is achttien, 80 is tachtig, also inside a phrase like '18 biertjes'). Vague amounts like 'heel veel' or 'geen idee' do, and so do estimates of 50 or more, lower bounds included ('ongeveer honderd', 'meer dan 50', '100+'), because nobody counted; negation ('niet heel veel') makes either false.

Discovered
mentions

External mentions of 'tachtien' (tweets, press and Cityguys articles) with title, source and URL. The url is null for a mention without a link.

Discovered
tachtienify

Rewrite a text so that vague large amounts in Dutch or English ('heel veel', 'honderden', 'a lot of', 'countless', ...) and large estimates ('ongeveer honderd', '~200', '100+') become 'tachtien'. Exact numbers, small estimates and years are left alone. Returns the new text, the number of replacements and each replaced phrase with its index in the input.

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected142 ms5

Related servers

All alternatives

Same function and industry, ranked by checks passed then median latency.

Explore alternatives to Tachtien