sdk · cli tooling
CLI tooling email SDKs
A growing number of providers ship a CLI for local sending, tail-style log inspection, and template management.
CLIs are useful for development and CI flows. Production sends should still go through SDKs or HTTP.
what to evaluate
Considerations
Use these lenses when comparing the picks below.
- Authentication model (API key, OAuth).
- Tail and log inspection commands.
- Template push and diff support.
- Local preview and test send.
top picks
- 01
Resend
TransactionalUseful for React Email preview and ad-hoc sending in development.
3,000/mo permanent, one domain · $20/mo for 50,000 emails - 02
Loops
Marketing TransactionalCLI for managing transactional templates and triggering test events.
1,000 contacts and 4,000 sends/mo on the Free plan · $49/mo for 5,000 contacts
also available