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