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