2 Best Open Source Stepzen Alternatives
A curated collection of the 2 best open source and self-hosted alternatives to Stepzen in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Stepzen in 2026? The top open-source alternative is WunderGraph — Open-source GraphQL Federation platform with governance.
Other highly rated open-source Stepzen alternatives include Hive.
Open-source GraphQL Federation platform with governance
WunderGraph Cosmo is an enterprise-ready platform for teams scaling from their first subgraph to thousands of daily operations. It provides a complete solution for building and running supergraphs with governance, schema registry, and distributed tracing capabilities. - GraphQL Federation v1 & v2: Support for both legacy and modern GraphQL Federation standards - Schema Registry: Centralized management of GraphQL schemas with versioning - Subscriptions: Real-time data updates for federated GraphQL APIs - EDFS (Event-Driven Subscriptions): Advanced event-driven subscription system - Analytics & Tracing: Comprehensive metrics and distributed tracing (OpenTelemetry compatible) - Breaking Change Detection: Automated detection of schema changes that could break clients - Schema Composition: Automatic composition of subgraphs into a unified supergraph - Governance & Ownership: Platform for managing API ownership and governance at scale - Distributed Tracing: Full observability with OpenTelemetry integration - No Vendor Lock-in: Open-source solution that prevents dependency on proprietary platforms WunderGraph Cosmo is open-source and can be self-hosted. The platform is built with modern technologies including: - Router: High-performance GraphQL router for federated queries - Studio: Web-based interface for managing schemas and operations - Connect: Integration layer for connecting to various data sources - ConnectRPC: RPC-style integration for microservices - MCP Gateway: Model Context Protocol gateway for AI integration - Streams: Event streaming capabilities for real-time updates The project is available on GitHub and provides comprehensive documentation for self-hosting and deployment options.
About Stepzen
A GraphQL API generator and serverless platform.