Send a transactional email
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Send a transactional email
with HubSpot · Email
Works with AI assistants
Use HubSpot: its Transactional Single Send Send transactional email API lets you send a transactional email in a single step (POST /marketing/transactional/2026-09/single-email/send). HubSpot also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.
- How do I send a receipt or password reset email built in the email tool?
- Can I fill in contact properties when sending a transactional email?
- What do I get back to track the delivery status of a transactional send?
Say it to your AI assistant
- Send transactional email {emailId} with message {message}.
- Send email {emailId} as {message}, filling contact properties {contactProperties} and custom properties {customProperties}.
For your developer
POST /marketing/transactional/2026-09/single-email/send in Transactional Single Send Send transactional email API. Full spec on APIs.io.