citation — Luhn checksum, number discarded MCP Tool
citation
(citation) is one of 31 tools on the
Luhn checksum, number discarded
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call citation from your client
- Claude Code Luhn checksum, number discarded citation run in your project directory
- Claude Desktop Luhn checksum, number discarded citation ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Luhn checksum, number discarded citation ~/.cursor/mcp.json
- VS Code Luhn checksum, number discarded citation .vscode/mcp.json
- Zed Luhn checksum, number discarded citation ~/.config/zed/settings.json
- Windsurf Luhn checksum, number discarded citation ~/.codeium/windsurf/mcp_config.json
- Cline Luhn checksum, number discarded citation ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Luhn checksum, number discarded citation ~/.gemini/settings.json
- Grok Luhn checksum, number discarded citation .mcp.json (in your project root)
- ChatGPT Luhn checksum, number discarded citation Settings → Connectors → Advanced → Developer mode
- Claude.ai Luhn checksum, number discarded citation Settings → Connectors → Add custom connector
- LangChain Luhn checksum, number discarded citation pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http luhn-ok https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/luhn-ok/mcpOther tools on this server
- luhn-ok
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- compatibility
- status-catalog
- iana-zones
- web-fetch
- fetch-status
- github-repo-shape
- weather-hint
- memory-key-count
- file-path-ok
- browser-url-ok
- think-steps
- search-query-len
- hn-front-count
- lib-docs-hint
- playwright-url-ok
- figma-url-shape
- jira-key-shape
- geo-hint
- calc-eval
- wiki-title-ok
- agent-tool-index
- people-search-index
- agent-ads-index
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.