Hey Product Hunt 👋 buchida is the email API we wanted when we started writing agents that send emails as a production workflow. Three things we optimized for: • Agent-native ergonomics. A CLI (npx @buchida/cli), an MCP server (works in Claude Code, Cursor, Copilot out of the box), and five SDKs: Node, Python, Go, Ruby, Java. Your agent calls send_email the same way it runs a migration. • CJK that actually renders. Noto Sans CJK stack, locale-aware line-height, em-based sizes that survive Gmail's CSS stripping. Korean, Japanese, and Chinese inboxes were the primary target — we built outward from there. • A dashboard in four languages from day one. English, Korean, Japanese, Chinese. Every screen, every error code, every date format. Public beta is live. Free tier is generous — 3,000 emails/month, no card required. Use code PRODUCTHUNT for one month of Pro free. Happy to answer anything: implementation choices, deliverability stories from Naver/DoCoMo/Kakao, why we think the agent era needs its own email primitive, or just "does this actually work?" Bring your questions. — buchida team, Seoul

buchida

Email API for AI agents — with CJK-native templates

Email API for AI agents — with CJK-native templates