Developer-grade sending
REST API, batch and scheduled sends, idempotency keys, SMTP relay, signed webhooks and full request logs.
A developer-first sending API and a full marketing suite in one multi-tenant platform: domains and DNS authentication, contacts and segments, campaigns, visual automations, forms, webhooks, analytics and deliverability controls.
New workspaces arrive with a verified demo domain, contacts, campaigns and event history so you can explore immediately.

Every record is scoped to an organization, so tenant isolation is enforced at the database, not in the interface.
REST API, batch and scheduled sends, idempotency keys, SMTP relay, signed webhooks and full request logs.
Unlimited custom fields, tags, lists, consent ledger and nested AND/OR segments that recompute as behavior changes.
Trigger, condition, delay, branch and goal nodes stored as a graph — with per-contact execution history.
SPF, DKIM, DMARC checks, a 0–100 domain health score, layered suppression and a jurisdiction-aware consent record.
Queued asynchronously, checked against suppression lists, rendered from your template and streamed back as events — never blocking your HTTP request.
POST /v1/emails
Authorization: Bearer tp_live_...
{
"from": "Acme <news@acme-health.com>",
"to": ["customer@example.com"],
"subject": "Welcome",
"html": "<h1>Hello</h1>",
"tags": { "customer_id": "12345" },
"idempotency_key": "welcome-12345"
}
201 Created
{ "id": "em_9f2c...", "status": "queued" }Not just subscriber counts — developers pay for throughput, marketers for automation, enterprises for dedicated infrastructure.
$0
3,000 emails / month
$89
150,000 emails / month
Custom
Volume pricing