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WarpStream BYOC Schema Registry
What WarpStream BYOC Schema Registry is
WarpStream BYOC Schema Registry stores and serves schemas for Kafka records through a REST server compatible with Confluent's Schema Registry API. It supports Avro and Protobuf. The registry is stateless and diskless: schemas are kept in the customer's object store, with registry functions embedded in WarpStream Agents. WarpStream says schemas remain in the customer's cloud account and object storage buckets. Agents can check records against schemas and reject invalid records or emit metrics. Schema Linking can move schemas from a Confluent-compatible registry while retaining their IDs and compatibility rules.
The service supports Basic Authentication, TLS, and mutual TLS. Customers create a Schema Registry Virtual Cluster in the WarpStream console or through the API, then deploy its agent using the Kafka Agents binary. Agents emit logs and metrics for monitoring. The API covers most Confluent Schema Registry APIs, but not advanced features such as data contracts or client-side field-level encryption. Each registry is limited to 100,000 schema versions, with each schema capped at 1 MB; customers can request increases. The Dev plan is $0.03 a month, Fundamentals is $0.17 a month, and Pro is $0.52 a month. Cluster minutes are billed in 15-minute increments for intervals when the cluster receives requests.
Who it suits
It suits teams running Kafka-compatible workflows that want schema storage in their own cloud account and agent-based validation. Organizations should check the API coverage and schema limits against their needs.
What it does well
- Supports Avro and Protobuf schemas
- Stores schemas in the customer's object store
- Agents can reject invalid records or emit metrics
- Supports Basic Authentication, TLS, and mutual TLS
- Schema Linking preserves IDs and compatibility rules
What to know first
- No free plan
- Does not support data contracts or client-side field-level encryption
- Each schema is limited to 1 MB
- Cluster minutes are billed in 15-minute increments
Limits
Each registry allows up to 100,000 schema versions, and each schema can be up to 1 MB. The registry supports most Confluent Schema Registry APIs, but not advanced features such as data contracts or client-side field-level encryption.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Dev | Cluster minutes are billed in 15-minute increments for any 15-minute interval that the cluster receives requests. · No uptime SLA | $0.03 a month |
| Fundamentals | Cluster minutes are billed in 15-minute increments for any 15-minute interval that the cluster receives requests. · 99.9% uptime SLA | $0.17 a month |
| Pro | Cluster minutes are billed in 15-minute increments for any 15-minute interval that the cluster receives requests. · 99.99% uptime SLA | $0.52 a month |
| Enterprise | Cluster minutes are billed in 15-minute increments for any 15-minute interval that the cluster receives requests. · 99.999% uptime SLA with Multi-Region Clusters; 99.99% without | On request |
As warpstream.com lists them, read 3 Oct 2026. The maker's own page has the final word.
Getting started
- Open the WarpStream website.
- Create a Schema Registry Virtual Cluster in the WarpStream console or through the API.
- Deploy its agent using the Kafka Agents binary.
- Choose a plan; cluster minutes are billed in 15-minute increments when the cluster receives requests.
Verdict
WarpStream BYOC Schema Registry combines schema storage in a customer's cloud account with validation through WarpStream Agents.
Questions
Is there a free plan?
No, the pricing model is paid and there is no free plan.
Which schemas does it support?
It supports Avro and Protobuf schemas.
Where are schemas stored?
Schemas are stored in the customer's object store. WarpStream says they remain in the customer's cloud account and object storage buckets.
What platforms and deployment options are available?
The listed platforms are API, Linux, macOS, and self-hosted. Deployment is described as hybrid.
What API features and integrations does it support?
It supports most Confluent Schema Registry APIs and works with Kafka-compatible registries such as Confluent Schema Registry and AWS Glue Schema Registry. Advanced features such as data contracts and client-side field-level encryption are not supported.
Facts from WarpStream BYOC Schema Registry's own pages
- API limitation
- The registry supports most Confluent Schema Registry APIs but does not support advanced features such as data contracts and client-side field-level encryption. · docs.warpstream.com, 3 Oct 2026
- Architecture
- The stateless, zero-disk registry stores schemas in the customer's object store and embeds registry functionality in WarpStream Agents. · docs.warpstream.com, 3 Oct 2026
- Authentication
- The registry supports Basic Authentication, TLS encryption, and mutual TLS authentication. · docs.warpstream.com, 3 Oct 2026
- Cloud data control
- WarpStream says schemas are stored in the customer's cloud account and object storage buckets and never leave that account. · warpstream.com, 3 Oct 2026
- Deployment
- Customers can create a Schema Registry Virtual Cluster in the WarpStream console or through the API, and deploy its agent using the same binary as Kafka Agents. · docs.warpstream.com, 3 Oct 2026
- Formats
- It supports Avro and protobuf schemas. · docs.warpstream.com, 3 Oct 2026
- Founded
- 2023 · warpstream.com, 28 Sept 2026
- Headquarters
- Mountain View, California, United States · warpstream.com, 28 Sept 2026
- Integration compatibility
- Schema Validation supports Kafka-compatible registries such as Confluent Schema Registry and AWS Glue Schema Registry. · warpstream.com, 3 Oct 2026
- Monitoring
- Schema Registry Agents emit logs and metrics that customers can use to monitor them. · docs.warpstream.com, 3 Oct 2026
- Purpose
- The BYOC Schema Registry stores and serves schemas used to serialize, deserialize, and validate Kafka records through a REST server compatible with Confluent's Schema Registry API. · docs.warpstream.com, 3 Oct 2026
- Schema limits
- Each registry is limited to 100,000 schema versions and each schema is limited to 1 MB; WarpStream says customers can contact support to request increases. · docs.warpstream.com, 3 Oct 2026
- Schema linking
- Schema Linking migrates schemas from a Confluent-compatible registry while preserving schema IDs and compatibility rules. · warpstream.com, 3 Oct 2026
- Schema validation
- WarpStream Agents can validate that records conform to their schemas and reject or emit metrics for invalid records. · docs.warpstream.com, 3 Oct 2026
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