validate_email — email59 MCP Tool

validate_email (validate email) is one of 20 tools on the email59 MCP server. Connect the server and your client discovers it on the handshake.

by client

How to call validate_email from your client

Claude Code email59 validate_email run in your project directory
Claude Desktop email59 validate_email ~/Library/Application Support/Claude/claude_desktop_config.json
Cursor email59 validate_email ~/.cursor/mcp.json
VS Code email59 validate_email .vscode/mcp.json
Zed email59 validate_email ~/.config/zed/settings.json
Windsurf email59 validate_email ~/.codeium/windsurf/mcp_config.json
Cline email59 validate_email ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
Gemini CLI email59 validate_email ~/.gemini/settings.json
Grok email59 validate_email .mcp.json (in your project root)
ChatGPT email59 validate_email Settings → Connectors → Advanced → Developer mode
Claude.ai email59 validate_email Settings → Connectors → Add custom connector
LangChain email59 validate_email pip install langchain-mcp-adapters

Fastest route

claude mcp add --transport http email59 https://email59.com/v1/mcp

Other tools on this server

auth
get_pricing
get_account
update_account
send_email
send_campaign
check_email
check_list
block
unblock
list_blocklist
add_unsubscribe
buy_pack
order_status
create_api_key
list_test_messages
list_api_keys
verify_start
verify_check

This list was read from the server itself, by connecting to it and calling tools/list on 5 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.

email59 MCP server