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LKJ MCP server

Which MCP servers are LKJ's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-28

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Whose server it is
  • Registry namecx.lkj/short-linksverified in the MCP registry

The registry name sits under lkj.cx. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-28
  • Stateanswerschecked 2026-10-28
  • Tools2
  • Server calls itselflkj
  • Server version0.7.0
  • Protocol version2025-06-18

On 2026-10-28 the server answered initialize and tools/list without a sign-in. First answer in 197 ms.

Should an agent connect itNot proven either way yet
  • Its tools do have an AI assistant create a code for a TV link, but not open a shared website by entering a four-digit code.
  • Checked on 6 of the 7 days it takes to judge reliability.

Once connected

  • For "have an AI assistant create a code for a TV link", the likely first call is create_short_link.
  • create_short_link change data without a sign-in: anyone with the address can call them.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 6, the first on 2026-10-28
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 6 so far
  • What an agent can do with it1 of 2 use cases
  • Answeredmeasuring6 of the 7 daily checks it takes to print a share
  • Median first answer158 ms
  • Space in an agent's context≈ 391 tokensthe definitions of all its tools (2), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results1 of 2 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • not sure · send a public website from a phone to a TV
  • cannot · open a shared website by entering a four-digit code
  • can do · have an AI assistant create a code for a TV link

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that change data, on a server that answers without a sign-in: create_short_link

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers2 tools · read 2026-10-28
  • create_short_link

    Shorten a public website for easy typing on a TV remote, console browser, phone or computer. Returns a short preview URL, four digits, one-hour idle expiry and instructions. Free beta, no account or API key. Appropriate for temporary…

  • get_service_info

    Read what LKJ does, whether new agent links are currently enabled, its fair-use limits and when to choose four-digit temporary links. Does not create or open a code, check a destination or consume a creation allowance.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "short-links": {
      "type": "http",
      "url": "https://lkj.cx/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http lkj https://lkj.cx/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://lkj.cx/mcp as a custom connector in the settings.

OpenAPI spec

1 paths, read 2026-10-28. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.