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B59 MCP server

Which MCP servers are B59'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 2026-10-29

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Whose server it is
  • Registry namelink.b59/b59-linkverified in the MCP registry

The registry name sits under b59.link. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-29
  • Stateanswerschecked 2026-10-29
  • Tools9
  • Server calls itselfb59.link
  • Server version1.4.0
  • Protocol version2025-06-18

On 2026-10-29 the server answered initialize and tools/list without a sign-in. First answer in 173 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: create short links and QR codes for printed materials; track clicks and scans on links and codes.
  • Checked on 5 of the 7 days it takes to judge reliability.

Once connected

  • For "create short links and QR codes for printed materials", the likely first call is auth.
  • create_tracker 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: 5, the first on 2026-10-29
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring5 of the 7 daily checks it takes to print a share
  • Median first answer283 ms
  • Space in an agent's context≈ 1,317 tokensthe definitions of all its tools (9), which an agent carries on every turn
  • Tool definitionsA · 98 of 100
  • Typed results0 of 9 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 9

What an agent can do with it

  • can do · create short links and QR codes for printed materials
  • can do · track clicks and scans on links and codes
  • not sure · change where a printed code points without reprinting

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_tracker

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 offers9 tools · read 2026-10-29
  • auth

    Sign in to b59.link to own what you create (and for 300 requests/minute on the REST API). Pass api_key to get a session key straight away. Or pass email to have a 6-digit code emailed, then call again with email and otp to get a session…

  • shorten_url

    Shorten a long URL and get a memorable b59.link short URL. Optionally specify a custom slug. Returns the short URL and a stats URL.

  • generate_qr

    Generate a trackable QR code for a URL. Creates a b59.link short URL at the same time so scans are counted. Returns the short URL, a stats URL, and the QR code as a base64-encoded PNG.

  • create_tracker

    Create a free page-view tracker for a website. Returns the tag image URL and ready-to-paste snippets for the site's pages, plus the stats URL where views, visitors, pages and referrers are shown. When signed in, the tracker belongs to the…

  • get_stats_url

    Get the stats page URL for anything b59.link tracks: a slug or short URL, the destination URL of a short link or QR code, a tracker id or tag URL, or any page URL / domain that has a tracker tag. Stats themselves are viewed on b59.link…

  • lookup_url

    Check whether a URL already has a b59.link short URL. Handles variations: http/https, www prefix, trailing slash. Returns the existing short URL and QR code if found.

  • make_qr_image

    Make a QR code image for any text (URL, Wi-Fi string, phone, email, plain text) without creating a short link. Supports colors, size and SVG. Returns the image plus a permanent image URL that can be embedded with <img src>. Use…

  • watch_printed_links

    Watch up to 25 printed links (QR codes on menus, short links on flyers, posters, packaging, cards). Checks each one now and then once a day, and records the whole redirect chain. A link is flagged when it dies (fails twice, 6 hours…

  • get_watch_report

    Get the state of every link in a printed-link watch: working, dead, moved, deactivated page, redirect changed or certificate expiring, what changed since the first check, the latest redirect chain and the last 30 days.

How to connect

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

{
  "mcpServers": {
    "b59-link": {
      "type": "http",
      "url": "https://b59.link/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http b59 https://b59.link/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://b59.link/api/mcp as a custom connector in the settings.

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.