validate_address — PaperAgent — Send Physical Mail MCP Tool
validate_address
(validate address) is one of 8 tools on the
PaperAgent — Send Physical Mail
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call validate_address from your client
- Claude Code PaperAgent — Send Physical Mail validate_address run in your project directory
- Claude Desktop PaperAgent — Send Physical Mail validate_address ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor PaperAgent — Send Physical Mail validate_address ~/.cursor/mcp.json
- VS Code PaperAgent — Send Physical Mail validate_address .vscode/mcp.json
- Zed PaperAgent — Send Physical Mail validate_address ~/.config/zed/settings.json
- Windsurf PaperAgent — Send Physical Mail validate_address ~/.codeium/windsurf/mcp_config.json
- Cline PaperAgent — Send Physical Mail validate_address ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI PaperAgent — Send Physical Mail validate_address ~/.gemini/settings.json
- Grok PaperAgent — Send Physical Mail validate_address .mcp.json (in your project root)
- ChatGPT PaperAgent — Send Physical Mail validate_address Settings → Connectors → Advanced → Developer mode
- Claude.ai PaperAgent — Send Physical Mail validate_address Settings → Connectors → Add custom connector
- LangChain PaperAgent — Send Physical Mail validate_address pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http letters https://paperagent.dev/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 18 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.