Tech riderRev. 29 Sept 2026

Buf Schema Registry

Ch 027.4of 24 Schema Registry Software

1Runs onAPI, self-hosted, Web
2CostsFree plan · free trial · paid from $0.50/mo
3Schema formatsProtobuf
4Compatibility modesFILE, PACKAGE, WIRE, WIRE JSON
5Validation scopeapi
6Deployment optionshybrid
7Approval workflowsYes
8Git synchronizationNo

8 lines stated Written from the maker's own pages: buf.build

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Overview

Buf Schema Registry is ranked #2 of 24 in schema registry software on Specifiction. It runs on API, Self-hosted, Web. There is a free plan. A free trial is offered. Paid plans start at $0.50/mo.

Buf Schema Registry plans and pricing

All plans

Community Free Free 1 private repository · unlimited public repositories · Community Slack support buf.build · 29 Sept 2026

Teams $0.50/mo per type / month Unlimited private repositories · email support within 48 business hours · 30-day trial buf.build · 29 Sept 2026

Pro $5/mo per type / month; $3000/month minimum spend Private BSR instance · unlimited organizations · hosted custom plugins · custom SSO with SAML and OIDC · 30-day trial buf.build · 29 Sept 2026

Enterprise Not published Custom Full data isolation · dedicated resources · self-hosted/on-prem available · custom contract terms buf.build · 29 Sept 2026

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