Email Sender — Transactional Email via API

Email sending API for AI agents. Send transactional emails programmatically — text or HTML body, custom subject, from address, delivery status confirmation and message ID. Powered by Resend. Tools: email_send_message. Use this when your agent needs to send notifications, reports, alerts, or outreach emails. IMPORTANT: Verify recipient with email_verify_address BEFORE sending to avoid bounces. Returns: {id, status, from, to, subject}. No API key required — x402 micropayment $0.003/call on Base L2.