Buf Schema Registry

Input—per 1M tokens

Output—per 1M tokens

Context—tokens

WeightsClosed

About

Buf Schema Registry is ranked #1 of 23 in schema registry software on Inferse. It runs on API, Self-hosted, Web. There is a free plan. A free trial is offered. Paid plans start at $0.50/mo.

Compared on schema registry software

Free plan: Yesbuf.build
Paid from: $0.50/mobuf.build
Schema formats: Protobufbuf.build
Compatibility modes: FILE, PACKAGE, WIRE, WIRE_JSONbuf.build
Validation scope: apibuf.build
Deployment options: hybridbuf.build
Approval workflows: Yesbuf.build
Git synchronization: Nobuf.build

Facts

Purpose: The BSR is a Protobuf-aware registry for tracking and evolving APIs, managing dependencies, and helping clients consume APIs.buf.build · 29 Sept 2026
Versioned modules: Teams can publish Protobuf files as versioned modules and resolve dependencies declared in buf.yaml.buf.build · 29 Sept 2026
Generated SDKs: The BSR builds and hosts native SDKs for supported languages so consumers can install them through their usual package managers.buf.build · 29 Sept 2026
Documentation: The BSR automatically generates browsable documentation for schema versions from Protobuf files and comments.buf.build · 29 Sept 2026
Governance: Server-side lint and breaking-change policies can reject or hold changes for review before consumers receive them.buf.build · 29 Sept 2026
Dependency visibility: The BSR maps modules that depend on a module so teams can coordinate changes and identify consumers before deprecation.buf.build · 29 Sept 2026
Integrations: Buf provides a GitHub Action for build, lint, format, breaking-change checks, and publishing, and the Buf CLI can integrate with other CI/CD systems.buf.build · 29 Sept 2026
Artifact proxy: Generated SDKs can be consumed directly from the BSR or through a proxy such as Artifactory.buf.build · 29 Sept 2026
Security and identity: Pro includes custom SSO with SAML and OIDC and comprehensive audit logging; Enterprise offers access to SOC 2 audit and penetration-test reports.buf.build · 29 Sept 2026
Deployment: Enterprise offers self-hosted, on-prem deployments, while Pro provides a managed private BSR instance.buf.build · 29 Sept 2026
Community limit: Community includes one private repository, limited to 100 types, and unlimited public repositories.buf.build · 29 Sept 2026
Billing basis: Paid plans charge by Protobuf messages, enums, and RPCs, with usage calculated from the average number of types during the billing cycle.buf.build · 29 Sept 2026
Support: The pricing page lists Community Slack support and email support with a 48-business-hour response SLA for Teams, Pro, and Enterprise.buf.build · 29 Sept 2026
API access: The BSR exposes RPC APIs through Connect, gRPC, and gRPC-Web.buf.build · 29 Sept 2026