SendHQ

Overview

SendHQ is an email API for products, services, and AI agents. It gives each one its own sending and receiving identity, so transactional mail, inbound replies, and automated conversations run through a single workspace rather than a separate provider per product.

Key features

• Transactional sending with per-domain identities
• Inbound email and a shared inbox and outbox
• Scoped API keys and delivery-event tracking
• An MCP server that lets assistants read and send email
• Domain verification with generated SPF, DKIM, and DMARC records

Who it is for

Product and platform teams that send application email, and teams running AI agents that need real inboxes and controlled outbound.

Pricing

The Starter plan is $9 per month for 50,000 emails and 25 domains; the Scale plan is $39 per month for 200,000 emails and 100 domains. Annual billing takes 10% off.

Frequently asked questions

Does SendHQ work with AI agents?

Yes. It documents a REST API and provides an MCP server so assistants such as Claude and ChatGPT can read and send email.

Which provider does it send through?

It runs on Amazon SES by default and uses a pluggable provider layer.