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