5K
5,000 emails / mo
3 sending domains
- RESTful Email API
- SMTP relay
- Open & click tracking
- Unsubscribe management
- Dynamic suppression
- Webhooks & inbound
Test the integration in a free sandbox, then choose a production volume. Every paid plan carries the full platform.
Sandbox — free forever · 100 test messages a month to verified recipients · no production sending
5,000 emails / mo
3 sending domains
5,000 emails / mo · unlimited contacts
3 sending domains
Includes all of TransactionalREST API, Node and Python SDKs, SMTP relay, templates, webhooks — every door open.
DKIM, SPF, DMARC, warmup, suppressions and reputation controls — on from the first send.
Inboxes on your domain, threads, replies and inbound webhooks — receiving is not an add-on.
The 54-tool MCP server, the CLI and skills ship on every plan — including the sandbox.
A small paid commitment discourages disposable abuse accounts and protects the shared sending reputation every customer rides on. The sandbox stays free for integration testing; production sending needs a verified domain and an active plan.
We warn you as usage grows and stop new sends at the published allowance. We do not create surprise overage charges. Move to a higher volume before the limit or wait for the next UTC month.
Pick a lane at any volume. Only Transactional is the cheaper lane — the send API, SMTP, tracking and suppression. Marketing + Transactional costs a little more and switches on campaigns, automations, lists, segments, topics (also called unsubscribe groups) and a hosted preference page — with unlimited contacts. Both lanes meter the same monthly email allowance; there is no separate per-contact bill.
No. Plans meter outbound recipients — the same monthly allowance whichever lane you pick — and receiving rides along free. We will announce any future inbound metering before anything changes; simulated inbound messages never count.
Yes — on every plan, sandbox included. The MCP server, the CLI and the skills are the same surface the dashboard uses, not a priced add-on. There are no "AI credits".
Yes. Drin speaks standard REST and SMTP, domains verify in minutes through one-click DNS setup, and plan-aware warmup protects your reputation while volume moves over. How we earn the inbox →
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