PostStack
poststack.devEU-hosted transactional email service with REST, SDK, SMTP, and MCP interfaces for sending and managing email.
What your agent can do
Send one email
Via API.
Tasks depend on the interface and permissions.
Connection methods
Choose a route that fits your agent.
API
For custom integrations
View paths for APIAPI connection
API path
https://api.poststack.dev/emails- Permissions
- Sending only