calc-eval — Hostname label count MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Hostname label count
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call calc-eval from your client
- Claude Code Hostname label count calc-eval run in your project directory
- Claude Desktop Hostname label count calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Hostname label count calc-eval ~/.cursor/mcp.json
- VS Code Hostname label count calc-eval .vscode/mcp.json
- Zed Hostname label count calc-eval ~/.config/zed/settings.json
- Windsurf Hostname label count calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Hostname label count calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Hostname label count calc-eval ~/.gemini/settings.json
- Grok Hostname label count calc-eval .mcp.json (in your project root)
- ChatGPT Hostname label count calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Hostname label count calc-eval Settings → Connectors → Add custom connector
- LangChain Hostname label count calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http host-labels https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/host-labels/mcp
Other tools on this server
- host-labels
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- 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
- 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.