iana-zones — Utility 121 MCP Tool
iana-zones
(iana zones) is one of 31 tools on the
Utility 121
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 121 iana-zones run in your project directory
- Claude Desktop Utility 121 iana-zones ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Utility 121 iana-zones ~/.cursor/mcp.json
- VS Code Utility 121 iana-zones .vscode/mcp.json
- Zed Utility 121 iana-zones ~/.config/zed/settings.json
- Windsurf Utility 121 iana-zones ~/.codeium/windsurf/mcp_config.json
- Cline Utility 121 iana-zones ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Utility 121 iana-zones ~/.gemini/settings.json
- Grok Utility 121 iana-zones .mcp.json (in your project root)
- ChatGPT Utility 121 iana-zones Settings → Connectors → Advanced → Developer mode
- Claude.ai Utility 121 iana-zones Settings → Connectors → Add custom connector
- LangChain Utility 121 iana-zones pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http util-121 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-121/mcpOther tools on this server
- util-121
- 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.