SendHQ

SendHQ gives product teams and AI agents one coherent email workflow: verify domains, send transactional messages, receive email, inspect delivery outcomes, and manage workspace-scoped API keys. Its public REST API is designed for serious product communication with clear observability and sender-safety controls. Developers can integrate transactional sending, inbound email, verified sending domains, delivery event visibility, and workspace-scoped API keys without stitching together disconnected tools. Plans start at nine US dollars per month; SendHQ does not currently offer a free tier or free trial.

Product teams, developers, and AI-agent builders that need transactional and inbound email infrastructure.

Product and agent email workflows often require separate tools for transactional sending, inbound processing, domain verification, delivery events, and API-key management. SendHQ unifies them behind one observable API.