lob_list_letters — Lob MCP by usefulapi MCP Tool
lob_list_letters
(lob list letters) is one of 18 tools on the
Lob MCP by usefulapi
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call lob_list_letters from your client
- Claude Code Lob MCP by usefulapi lob_list_letters run in your project directory
- Claude Desktop Lob MCP by usefulapi lob_list_letters ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Lob MCP by usefulapi lob_list_letters ~/.cursor/mcp.json
- VS Code Lob MCP by usefulapi lob_list_letters .vscode/mcp.json
- Zed Lob MCP by usefulapi lob_list_letters ~/.config/zed/settings.json
- Windsurf Lob MCP by usefulapi lob_list_letters ~/.codeium/windsurf/mcp_config.json
- Cline Lob MCP by usefulapi lob_list_letters ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Lob MCP by usefulapi lob_list_letters ~/.gemini/settings.json
- Grok Lob MCP by usefulapi lob_list_letters .mcp.json (in your project root)
- ChatGPT Lob MCP by usefulapi lob_list_letters Settings → Connectors → Advanced → Developer mode
- Claude.ai Lob MCP by usefulapi lob_list_letters Settings → Connectors → Add custom connector
- LangChain Lob MCP by usefulapi lob_list_letters pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http lob https://lob.usefulapi.io/mcpOther tools on this server
- lob_verify_us_address
- lob_verify_intl_address
- lob_us_zip_lookup
- lob_us_autocomplete
- lob_list_postcards
- lob_get_postcard
- lob_get_letter
- lob_list_checks
- lob_get_check
- lob_list_self_mailers
- lob_list_addresses
- lob_get_address
- lob_list_templates
- lob_create_address
- lob_create_postcard
- lob_create_letter
- lob_cancel_postcard
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 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.