calc-eval — Unix hour number MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Unix hour number
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 Unix hour number calc-eval run in your project directory
- Claude Desktop Unix hour number calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Unix hour number calc-eval ~/.cursor/mcp.json
- VS Code Unix hour number calc-eval .vscode/mcp.json
- Zed Unix hour number calc-eval ~/.config/zed/settings.json
- Windsurf Unix hour number calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Unix hour number calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Unix hour number calc-eval ~/.gemini/settings.json
- Grok Unix hour number calc-eval .mcp.json (in your project root)
- ChatGPT Unix hour number calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Unix hour number calc-eval Settings → Connectors → Add custom connector
- LangChain Unix hour number calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http unix-hour https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/unix-hour/mcpOther tools on this server
- unix-hour
- 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.