web-fetch — JSON Check MCP Tool
web-fetch
(web fetch) is one of 30 tools on the
JSON Check
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 JSON Check web-fetch run in your project directory
- Claude Desktop JSON Check web-fetch ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor JSON Check web-fetch ~/.cursor/mcp.json
- VS Code JSON Check web-fetch .vscode/mcp.json
- Zed JSON Check web-fetch ~/.config/zed/settings.json
- Windsurf JSON Check web-fetch ~/.codeium/windsurf/mcp_config.json
- Cline JSON Check web-fetch ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI JSON Check web-fetch ~/.gemini/settings.json
- Grok JSON Check web-fetch .mcp.json (in your project root)
- ChatGPT JSON Check web-fetch Settings → Connectors → Advanced → Developer mode
- Claude.ai JSON Check web-fetch Settings → Connectors → Add custom connector
- LangChain JSON Check web-fetch pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http json-check https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/json-check/mcp
Other tools on this server
- validate-json
- utc-time
- timezone
- 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.