calc-eval — Utility 112 MCP Tool
calc-eval
(calc eval) is one of 31 tools on the
Utility 112
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 Utility 112 calc-eval run in your project directory
- Claude Desktop Utility 112 calc-eval ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Utility 112 calc-eval ~/.cursor/mcp.json
- VS Code Utility 112 calc-eval .vscode/mcp.json
- Zed Utility 112 calc-eval ~/.config/zed/settings.json
- Windsurf Utility 112 calc-eval ~/.codeium/windsurf/mcp_config.json
- Cline Utility 112 calc-eval ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Utility 112 calc-eval ~/.gemini/settings.json
- Grok Utility 112 calc-eval .mcp.json (in your project root)
- ChatGPT Utility 112 calc-eval Settings → Connectors → Advanced → Developer mode
- Claude.ai Utility 112 calc-eval Settings → Connectors → Add custom connector
- LangChain Utility 112 calc-eval pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http util-112 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-112/mcpOther tools on this server
- util-112
- 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.