Building for the 80%: The New Developer Tier for Apache Kafka®

When we launched the Free Tier, we made a promise: graduating to a paid tier shouldn’t feel like switching platforms. It should simply feel like tapping “Continue watching in HD”.

The Developer Tier for Aiven for Apache Kafka® is that upgrade. $29 a month for the serious, ongoing workloads that haven’t yet reached enterprise scale. Everything we said was coming is now live.

Built for the 80%

Most Kafka clusters move small amounts of data. They’re not trivial, but they’re not gigantic either. And yet they’ve historically been forced to pay and operate as if they were. The Developer Tier is built for exactly this middle ground: important enough that reliability and ergonomics matter, but nowhere near the scale that justifies enterprise infrastructure costs.

Built for Builders

We’ve taken the same managed infrastructure that supports our enterprise customers and right-sized it for prototyping and microservices. For $29/month, you get a 99% SLA and:

• Up to 1 MB/s throughput: Test real-time workloads and pre-production data flows without bottlenecks.
• 20 Topics (max 100 partitions): Design and test multi-stream architectures at the scale your project needs.
• Schema Registry and REST proxy: Maintain data quality and interact with your cluster via standard HTTP calls from day one.
• Flexible Retention: Start with 1-day retention and scale up to 7 days as your testing requirements grow.
• Prometheus Integration: Export metrics directly to your observability stack for full visibility into cluster health.
• Kafka Connect compatibility: Bridge to databases like PostgreSQL or ClickHouse for an additional $20/month - no custom integration logic required.

Once the service is running, you have access to the same API and tooling used across our larger production clusters, all built on open-source technology. Even the smallest team gets enterprise-grade infrastructure, just at a right-sized price point.

Deploying Your First Cluster

You can spin up a new Developer Tier instance using the Aiven Console, the API, Terraform, or the Aiven CLI.

We’ve also published Aiven Kafka AI Skills to the public skills registries, so AI agents like Claude Code or Cursor can provision, configure, and manage your cluster for you. Install Node.js, add the skill bundle, and your agent handles the rest:

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Then prompt your agent:

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Your agent of choice will provision your cluster, configure authentication, set up Schema Registry, and run a working producer-consumer example to verify everything is connected. No config files to write and no documentation to wade through.

A Clear Path to Production

Because the Free Tier, Developer Tier and Professional Tier are all built on the same foundation, moving up a tier takes just one click. Your configuration and data stays intact with no migrations, no architectural changes, and no rebuilding from scratch. Add connectors and increase retention as you go, and when you’re ready for high availability, upgrade to the Professional Tier and keep building without skipping a beat.

Patching, updates, backups: we’ve got it. All you need to do is focus on the code.

Start building with the Developer Tier

The Developer Tier is now live and available:

1. Create your project: Log in to the Aiven Console to begin. You'll need a credit card to start the service.
2. Select your plan: Choose the Developer Tier from the Kafka service options.
3. Start building: Use the built-in data generator to see messages flowing in seconds, or let your AI agent handle setup with the command above.

Get Building on the Developer Tier