Published onFebruary 6, 2026What is Upstash? The Beginner’s Guide to Serverless Dataupstashserverless-databaseredismanaged-kafkavector-databasebackend-as-a-serviceUpstash is a serverless data platform for Redis, Kafka, and Vector databases. This guide explains its pay-as-you-go model and how beginners use it for free.