{
  "mcpServers": {
    "krill": {
      "command": "npx",
      "args": ["-y", "@krillto/mcp-server"],
      "env": {
        "KRILL_API_KEY": "krill_your_key_here"
      }
    }
  }
}

Cursor — add to .cursor/mcp.json:

{
  "mcpServers": {
    "krill": {
      "command": "npx",
      "args": ["-y", "@krillto/mcp-server"],
      "env": {
        "KRILL_API_KEY": "krill_your_key_here"
      }
    }
  }
}

Claude Code — add to .claude/settings.json:

{
  "mcpServers": {
    "krill": {
      "command": "npx",
      "args": ["-y", "@krillto/mcp-server"],
      "env": {
        "KRILL_API_KEY": "krill_your_key_here"
      }
    }
  }
}

That's it. Your AI agent can now search your bookmarks.

Tools

Tool	Description
`search_bookmarks`	Search by keyword, topic, or author (full-text + semantic)
`ask_bookmarks`	Ask AI questions about your saved bookmarks
`list_collections`	List all your collections
`get_collection_bookmarks`	View bookmarks in a collection
`create_collection`	Create a new collection
`add_to_collection`	Add a bookmark to a collection
`update_bookmark`	Update category or tags
`add_notes`	Add personal notes to a bookmark
`get_highlights`	View all your highlighted passages
`delete_bookmark`	Delete a bookmark

Examples

Ask your AI agent:

"Search my bookmarks about React Server Components"
"What have I saved about AI agents lately?"
"Create a collection called 'Must Read' and add the latest 3 bookmarks"
"Show me my highlights"
"What did @karpathy tweet about that I saved?"

What is krill.to?

Krill.to saves your Twitter/X bookmarks, auto-categorizes them with AI, and makes them searchable. Think of it as a second brain for everything you bookmark on X.

One-click save via Chrome extension
AI-powered categorization and tagging
Full-text and semantic search
Thread unrolling and media capture
AI chat — ask questions about your bookmarks

Development

git clone https://github.com/krillto/mcp-server.git
cd mcp-server
pnpm install
pnpm build

Test locally:

KRILL_API_KEY=krill_your_key node dist/index.js

Environment Variables

Variable	Required	Description
`KRILL_API_KEY`	Yes	Your krill.to API key (starts with `krill_`)
`KRILL_BASE_URL`	No	Custom API URL (default: `https://krill.to`)

License

MIT

Try in Playground

Server Config

{
  "mcpServers": {
    "krill": {
      "command": "npx",
      "args": [
        "-y",
        "@krillto/mcp-server"
      ],
      "env": {
        "KRILL_API_KEY": "<YOUR_API_KEY>"
      }
    }
  }
}

Build with ShipAny.