About Krill — Twitter/x Bookmarks
Krill is an MCP server for searching and managing saved Twitter/X bookmarks through AI agents. It combines full-text and semantic search with tools for collections, notes, highlights, and questions about saved content.
Key features
- 01Search bookmarks by text or meaning
- 02Ask questions about bookmarks
- 03Manage bookmark collections
- 04Update tags and add notes
- 05View highlights and delete bookmarks
Use cases
- 01Find saved posts on a topic
- 02Ask questions about saved bookmarks
- 03Organize bookmarks into collections
- 04Review highlights or saved author posts
MCP support
The MCP server exposes tools for searching and managing krill.to bookmarks to MCP-compatible clients. It requires a krill.to API key.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
Tools
Local servers expose tools only once running on your machine, and the maintainer has not provided a tool list.
Details
From the project README@krillto/mcp-server
MCP server for krill.to — search and manage your Twitter/X bookmarks from any AI agent.
Works with Claude Desktop, Claude Code, Cursor, Windsurf, OpenClaw, and any MCP-compatible client.
Quick Start
1. Get your API key
Sign in to krill.to, go to Settings → API Key, and generate a key.
2. Configure your MCP client
Claude Desktop — add to claude_desktop_config.json:
{
"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
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.