Identify, then send
Identify a subscriber with your own user id, then send. BuzzKit answers 202 with a message id, works out which devices are reachable, fans out through a durable queue with retries, and records every attempt per device.Sending
Target one subscriber, a topic, a saved segment or an inline expression, with retries and a full delivery ledger.
Scheduling
Hold a message until a moment, in a fixed time zone or in each subscriber’s own.
Segments
Saved, versioned conditions over attributes, events and activity, evaluated at send time.
Workflows
Versioned specs with waits, branches, loops and fetches that run per subscriber.
Topics and preferences
A notification settings screen for your app with no backend code.
Multi-tenancy
A tenant per customer, each with isolated subscribers and credentials, behind one key.