CIOPages
For vendorsCorrections to your listing are free
Fix an error, free List a company, free Order a Spotlight listingAbout Spotlight listings
DirectoryData & AnalyticsStreaming & Real-Time Analyticsuserver

userver

About userver

userver is an open source asynchronous framework for building C++ microservices, services and utilities. The framework handles I/O interactions transparently for developers. It includes asynchronous drivers for databases and data transfer protocols. It offers high-level components for caches, tasks, distributed locking, logging, tracing, statistics, metrics, and data formats. It also provides low-level synchronization primitives and OS abstractions.

Used for

  • Creating C++ microservices, services and utilities.
  • Debugging and memory profiling a running production service.
  • Evolving a toy C++ service into a production ready service.
  • Adjusting options of deadline propagation, timeouts, and congestion-control without a restart.
  • Handling HTTP requests and responding with data from a database.

From userver's own website, read 2026-10-24. How we build listings.

How to evaluate Streaming & Real-Time Analytics

This is how the CIOPages Research Team evaluates this category. It is not an assessment of userver. It comes from our Streaming Data & Event Processing buyer guide.

25%
Throughput, Latency & Durability
Sustained throughput and tail latency at your partition count, ordering and exactly-once / at-least-once delivery guarantees, replication and multi-AZ durability, retention limits, and behavior under broker failure and rebalancing
20%
Operating Model & Architecture
Self-managed vs. fully managed vs. serverless vs. bring-your-own-cloud, KRaft (post-ZooKeeper) operations, diskless / object-storage-backed options, autoscaling, partition rebalancing, and upgrade and patching burden on your team
20%
Kafka-API Compatibility & Portability
Fidelity of the Kafka protocol (consumer groups, transactions, compaction), reuse of existing clients, connectors and tooling, lock-in to a single cloud, and the realistic effort to migrate in or out
15%
Stream Processing & Ecosystem
Native or integrated processing (Flink, Kafka Streams, Spark Structured Streaming, ksqlDB), connector catalog (CDC, sinks, sources), schema registry and governance, and direct landing into Iceberg / Delta lakehouse tables
10%
Security, Governance & Compliance
Encryption in transit and at rest, mTLS / SASL / OAuth and RBAC, audit logging, private networking, data residency and BYOC data-boundary control, and SOC 2 / ISO 27001 / GDPR coverage
10%
Cost Model & Economics at Scale
Pricing unit (capacity / throughput / consumption), inter-AZ and egress charges, storage and retention cost, processing billed separately, and how the bill behaves as volume, partitions, and connectors grow

CIOPages put this listing together from public sources. It’s information, not an endorsement. How we build listings. Work here? Claim this listing or .

Quick Facts

userver.tech
CategoryData & Analytics
SubcategoryStreaming & Real-Time Analytics

We publish a detail only when we can point at the page it came from. Know when userver was founded or where it is based? Send it to us, free.

Keep reading

Buyer Guide
Real-Time Analytics Databases
Job 01
Decide where AI goes in the business

The board wants an AI plan, and every function wants to go first.

Executive Forum
Publish under your own byline

Senior technology leaders write for CIOPages in the Executive Forum.