SendHQ is observable email infrastructure for product teams and AI agents that need one coherent workflow for transactional communication. It provides a public REST surface for sending messages from verified domains, receiving inbound email, inspecting delivery outcomes, and managing workspace scoped API keys. The product is designed around clear operations and sender safety controls, so teams can understand how email moves through their applications without splitting core tasks across unrelated tools.
A SendHQ workflow starts with a verified sending domain. Once a domain is configured, a product can use the transactional email API for messages created by its own application. This includes the ordinary communication that software products need, while keeping the sending identity tied to a domain the workspace controls. SendHQ does not claim guaranteed deliverability. Instead, it exposes delivery event information so operators can inspect outcomes and respond to what actually happened.
Inbound email is part of the same system. Teams and agents can receive messages and build workflows around those messages without treating inbound communication as a separate product. That is useful for support flows, automated operations, and applications where email is both an input and an output. The same workspace model keeps API access scoped rather than relying on one broad credential for every action.
Observability is a central part of the product. Delivery events give product teams a clearer record of message outcomes. Workspace scoped API keys help separate access between environments or workflows. Agent facing API documentation gives automated clients a direct description of the available interface. Together, those pieces make it easier to build an email workflow that can be inspected, maintained, and reasoned about after it reaches production.
SendHQ is intended for founders, developers, product teams, and builders of AI agent workflows. A small team can use it to add transactional sending to a new product. A more established product can use the same public REST surface for verified domain sending, inbound processing, delivery event visibility, and controlled API access. Teams can begin with the published Transactional Starter plan at 9 USD per month; other published plans cover higher scale transactional use and marketing use cases.
The goal is straightforward: give software teams a focused email infrastructure layer with sending, receiving, delivery visibility, and scoped credentials in one place. SendHQ keeps the public claims narrow and verifiable. It does not claim an unverified user count, market share, awards, integrations, or guaranteed delivery. Product details, pricing, API documentation, terms, and privacy information are available through the official SendHQ website.
