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KooLink URL Shortener

Official registry AI and agents

Shorten any long URL into a clean kool.ink link. Free, unlimited, no signup. AI-agent ready.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http koolink-url-shortener 'https://mcp.kool.ink'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "koolink-url-shortener": {
            "type": "http",
            "url": "https://mcp.kool.ink"
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. koolink
  2. Install
  3. Usage
  4. Install as an MCP server
  5. Tools
  6. Why KooLink
  7. API
  8. License

Shorten any URL to a clean kool.ink/xyz link from your terminal. Free, unlimited, no signup. AI-agent ready.

npx @koolink/koolink https://example.com/very/long/path
# → https://kool.ink/abc123

Install

# one-off (no install)
npx @koolink/koolink https://example.com

# or install globally
npm install -g @koolink/koolink
koolink https://example.com

Usage

# Shorten a URL (prints the short link, copies to clipboard on desktop)
koolink https://example.com/very/long/path

# Shorten from stdin (great for piping)
echo "https://example.com" | koolink

# Shorten a batch
cat urls.txt | xargs -I{} koolink {}
FlagDescription
--help / -hShow help
--version / -vShow version

Install as an MCP server

Point any MCP client (Claude Desktop, Cursor, Windsurf, etc.) at the hosted MCP server at https://mcp.kool.ink — no API key required for anonymous shortening.

{
  "mcpServers": {
    "koolink": {
      "url": "https://mcp.kool.ink"
    }
  }
}

Tools

This server exposes the following MCP tools:

ToolDescriptionInput
shorten_urlShorten a long URL and return a compact kool.ink short link.{ "url": "<long-url>" }
  • Free forever — no account, no credit card, no limits
  • Clean, memorable URLs — kool.ink/xyz, not bit.ly/4xdK9qZ
  • AI-agent ready — same service over MCP at https://mcp.kool.ink, or the REST API
  • Analytics — every link is click-tracked with bot traffic filtered out
  • Creator Earning Programme — as traffic grows, you earn

API

The CLI calls the public anonymous endpoint:

curl -X POST https://kool.ink/api/links \
  -H "Content-Type: application/json" \
  -d '{"url":"https://example.com"}'

For AI agents, use the MCP server at https://mcp.kool.ink (no API key needed for anonymous shortening).

License

MIT

Frequently asked questions

What is KooLink URL Shortener?

Shorten any long URL into a clean kool.ink link. Free, unlimited, no signup. AI-agent ready.

How do I install KooLink URL Shortener?

It runs as a remote server. In Claude Code: claude mcp add --transport http koolink-url-shortener 'https://mcp.kool.ink'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does KooLink URL Shortener need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is KooLink URL Shortener open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains KooLink URL Shortener?

It is published by KooLink. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.