check_if — tax validator MCP Tool Read-only
check_if
(check if) is one of 2 tools on the
tax validator
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call check_if from your client
- Claude Code tax validator check_if run in your project directory
- Claude Desktop tax validator check_if ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor tax validator check_if ~/.cursor/mcp.json
- VS Code tax validator check_if .vscode/mcp.json
- Zed tax validator check_if ~/.config/zed/settings.json
- Windsurf tax validator check_if ~/.codeium/windsurf/mcp_config.json
- Cline tax validator check_if ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI tax validator check_if ~/.gemini/settings.json
- Grok tax validator check_if .mcp.json (in your project root)
- ChatGPT tax validator check_if Settings → Connectors → Advanced → Developer mode
- Claude.ai tax validator check_if Settings → Connectors → Add custom connector
- LangChain tax validator check_if pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http tax-validator https://tax-validator.onrender.com/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 5 October 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.