b59.link
link.b59/b59-linkb59.linkstreamable-httpv1.2.0Scanned
Short links, QR codes and page-view trackers for AI agents, with click stats and email-code sign-up.
7 tools: 5 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 3
- Can send data out · 3
- No findings
Anlyon alternative
5 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
7 tools
Changes things 5Claude Code: ask
authSign in to b59.link to raise the rate limit from 2 to 300 requests/minute and own what you create.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Sign in to b59.link to raise the rate limit from 2 to 300 requests/minute and own what you create. 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 key (new emails are signed up and also get their api_key). Send the session key as the HTTP header 'Authorization: Bearer <session_key>'.
Annotations the server declares
- title: Sign in to b59.link
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: true
create_trackerCreate a free page-view tracker for a website.No findings
Why it is in this group
- The name "create_tracker" says "create": a word for a change.
Description, as the server wrote it 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 account; otherwise keep the manage_token to claim it later.
Annotations the server declares
- title: Create a page-view tracker
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
generate_qrGenerate a trackable QR code for a URL.Can send data outNo findings
Why it is in this group
- The name "generate_qr" says "generate": a word for a change.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it 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.
Annotations the server declares
- title: Make a tracked QR code
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
make_qr_imageMake a QR code image for any text (URL, Wi-Fi string, phone, email, plain text) without creating a short link.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it 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 generate_qr instead when scans should be counted.
Annotations the server declares
- title: Make a QR code image
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
shorten_urlShorten a long URL and get a memorable b59.link short URL.Can send data outNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
What it can reach
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Description, as the server wrote it 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.
Annotations the server declares
- title: Shorten a URL
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
Only reads 2Show 2 read-only tools
get_stats_urlGet 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…Reads text others writeNo findings
Why it is in this group
- The name "get_stats_url" says "get": a word for reading.
What it can reach
- untrusted-inputThe name "get_stats_url" says "get" and "url": it reads web pages, which anyone can write.
- untrusted-inputThe description's first sentence says "get" and "url": it reads web pages, which anyone can write.
Description, as the server wrote it 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; this returns where.
Annotations the server declares
- title: Find a stats page
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
lookup_urlCheck whether a URL already has a b59.link short URL.Reads text others writeCan send data outNo findings
Why it is in this group
- The name "lookup_url" says "lookup": a word for reading.
What it can reach
- untrusted-inputThe name "lookup_url" says "lookup" and "url": it reads web pages, which anyone can write.
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
- untrusted-inputThe input takes a URL (input.url), and the tool reads it: it reads web pages, which anyone can write.
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Claude Code: ask, because it is tagged outbound.
Description, as the server wrote it 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.
Annotations the server declares
- title: Look up an existing short link
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write3
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out3
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.2.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http b59-link https://b59.link/api/mcpclaude mcp add --transport http b59-link https://b59.link/api/mcpRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__b59-link__get_stats_url"
],
"ask": [
"mcp__b59-link__auth",
"mcp__b59-link__shorten_url",
"mcp__b59-link__generate_qr",
"mcp__b59-link__create_tracker",
"mcp__b59-link__lookup_url",
"mcp__b59-link__make_qr_image"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as b59-link. Review it before you use it.
Capability tags behind 5 rules
- mcp__b59-link__auth untrusted-input
- mcp__b59-link__shorten_url outbound
- mcp__b59-link__generate_qr outbound
- mcp__b59-link__get_stats_url untrusted-input
- mcp__b59-link__lookup_url untrusted-input, outbound
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/link.b59/b59-link/verify?hash=1fce5c0dbfa57f1f79da779df60b37db76594136613dd147443a16d02d6b11b8" | jq -e '.changed == false'Pinned hash 1fce5c0dbfa5, from Oct 24, 2026, 09:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/link.b59/b59-link/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/link.b59/b59-link)Source: MCP Registry. Synced Oct 24, 2026, 09:18 UTC.