SendHQ is observable email infrastructure for product teams and AI agents that need one coherent way to send transactional messages, receive inbound email, and inspect what happened after a message left the application. It brings verified-domain sending, inbound email, delivery events, scoped API keys, and clear operational visibility into a focused product workflow.
Teams can use SendHQ when product communication needs to be dependable and understandable. A developer can verify a sending domain, create a workspace-scoped API key, and send transactional email through the public REST API. The same workspace can receive inbound messages and expose delivery outcomes for inspection. This keeps sending, receiving, and debugging close together instead of spreading those tasks across unrelated systems.
SendHQ is also designed for agent workflows. An AI agent that sends or processes email needs more than a generic send button: it needs bounded credentials, observable outcomes, and a predictable API surface. SendHQ provides workspace-scoped keys and public agent-facing documentation so automated workflows can operate inside clear safety boundaries. Inbound email support allows applications and agents to react to replies or verification messages, while delivery event visibility helps operators understand whether a message was accepted, delivered, or needs investigation.
The product focuses on serious product communication rather than marketing claims. Verified sending domains support sender safety. Scoped API keys reduce the blast radius of credentials. Delivery events make operational status visible. Inbound email lets product teams build two-way workflows. The OpenAPI description and public documentation make the interface inspectable for both human developers and software agents.
SendHQ fits developer tools, email API, transactional email, API, AI infrastructure, and SaaS categories. It is useful for founders and product teams building account verification, notifications, receipts, workflow alerts, agent inboxes, and other application-driven communication. Its value is the coherence of the workflow: send messages, receive messages, inspect outcomes, and manage access from one place.
Pricing starts at nine US dollars per month for the Transactional Starter plan. Additional published plans cover higher-scale transactional and marketing use cases. SendHQ does not claim a free tier or free trial on its public pricing page. Teams can review the product, its API description, agent documentation, privacy terms, and service terms publicly before choosing a plan.
For builders who want email infrastructure that is visible, scoped, and straightforward to integrate, SendHQ provides a practical foundation. It keeps the email lifecycle observable and gives product teams and AI agents the tools needed to communicate without treating delivery as a black box.
