
Serverless data platform for Redis, Kafka, and message queues
Upstash is a serverless data platform offering managed Redis, Kafka, QStash (message queue), Vector (vector database), and Workflow (durable workflows) with per-request pricing that scales to zero. Its HTTP/REST API solves the connection-limit problem that traditional Redis has with serverless and edge functions, making it a natural fit for Vercel, Cloudflare Workers, and AWS Lambda. Upstash provides global replication across 8+ regions, automatic scaling, and a cost ceiling to prevent bill shock. Founded in 2021 and headquartered in San Jose, CA, Upstash has raised $11.9M in funding.
Fully managed Redis-compatible database accessible via HTTP/REST API and native SDKs — no persistent connections needed, solving the serverless connection-limit problem
Serverless message queue for background jobs, scheduled tasks, FIFO delivery, and fan-out to multiple endpoints — no infrastructure to manage
Serverless Apache Kafka with per-message pricing for event streaming, log aggregation, and real-time data pipelines without cluster management
Serverless vector database for AI/RAG applications with similarity search, metadata filtering, and automatic indexing — pay only for stored vectors and queries
Durable workflow engine for orchestrating multi-step processes with automatic retries, error handling, and state persistence across serverless function invocations
Replicate data across 8+ regions worldwide for low-latency reads — add or remove regions without downtime for globally distributed applications
Implement sliding-window rate limiters for APIs and webhooks using Redis atomic operations with the @upstash/ratelimit SDK — works natively in edge middleware
Store user sessions in serverless Redis instead of JWTs or database lookups — low-latency reads from the nearest region with automatic expiration
Cache expensive PostgreSQL or MongoDB queries in Redis with TTL-based invalidation — reduce database load and response times without managing infrastructure
Use QStash to offload long-running tasks like email sending, image processing, and webhook delivery from serverless functions with guaranteed delivery and retries
First-class SDKs for JavaScript/TypeScript, Python, Go, and more — designed to work in edge runtimes like Cloudflare Workers, Vercel Edge, and Deno Deploy
Pay-as-you-go databases have a predefined monthly maximum price ($30/month on free-upgraded, $360/month on pay-as-you-go) preventing unexpected bill spikes
Store feature flags, A/B test configurations, and dynamic settings in Redis for instant propagation across all edge locations

Open source cloud-native SIEM built on a security data lake for AWS