calc-eval — UTC Clock MCP Tool
calc-eval
(calc eval) is one of 30 tools on the
UTC Clock
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 UTC Clock calc-eval run in your project directory
- Claude Desktop UTC Clock calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor UTC Clock calc-eval ~/.cursor/mcp.json
- VS Code UTC Clock calc-eval .vscode/mcp.json
- Zed UTC Clock calc-eval ~/.config/zed/settings.json
- Windsurf UTC Clock calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline UTC Clock calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI UTC Clock calc-eval ~/.gemini/settings.json
- Grok UTC Clock calc-eval .mcp.json (in your project root)
- ChatGPT UTC Clock calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai UTC Clock calc-eval Settings → Connectors → Add custom connector
- LangChain UTC Clock calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http utc-clock https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/utc-clock/mcpOther tools on this server
- 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.