browser-url-ok — JSON Check MCP Tool
browser-url-ok
(browser url ok) 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 browser-url-ok from your client
- Claude Code JSON Check browser-url-ok run in your project directory
- Claude Desktop JSON Check browser-url-ok ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor JSON Check browser-url-ok ~/.cursor/mcp.json
- VS Code JSON Check browser-url-ok .vscode/mcp.json
- Zed JSON Check browser-url-ok ~/.config/zed/settings.json
- Windsurf JSON Check browser-url-ok ~/.codeium/windsurf/mcp_config.json
- Cline JSON Check browser-url-ok ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI JSON Check browser-url-ok ~/.gemini/settings.json
- Grok JSON Check browser-url-ok .mcp.json (in your project root)
- ChatGPT JSON Check browser-url-ok Settings → Connectors → Advanced → Developer mode
- Claude.ai JSON Check browser-url-ok Settings → Connectors → Add custom connector
- LangChain JSON Check browser-url-ok 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/mcpOther tools on this server
- validate-json
- utc-time
- timezone
- 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
- 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.