iana-zones — Utility 139 MCP Tool
iana-zones
(iana zones) is one of 31 tools on the
Utility 139
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call iana-zones from your client
- Claude Code Utility 139 iana-zones run in your project directory
- Claude Desktop Utility 139 iana-zones ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Utility 139 iana-zones ~/.cursor/mcp.json
- VS Code Utility 139 iana-zones .vscode/mcp.json
- Zed Utility 139 iana-zones ~/.config/zed/settings.json
- Windsurf Utility 139 iana-zones ~/.codeium/windsurf/mcp_config.json
- Cline Utility 139 iana-zones ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Utility 139 iana-zones ~/.gemini/settings.json
- Grok Utility 139 iana-zones .mcp.json (in your project root)
- ChatGPT Utility 139 iana-zones Settings → Connectors → Advanced → Developer mode
- Claude.ai Utility 139 iana-zones Settings → Connectors → Add custom connector
- LangChain Utility 139 iana-zones pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http util-139 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-139/mcpOther tools on this server
- util-139
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- compatibility
- status-catalog
- 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
- calc-eval
- 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.