The Guild

Schema Registry
and Observability
for GraphQL

Prevent breaking changes, monitor performance of your GraphQL API, and manage your API gateway.

The Ecosystem

Our advanced, modular solutions can be adopted gradually as individual open source libraries or as a complete unified API platform. Explore our suite of sustainable, open source API tools that covers everything you need to scale your API infrastructure:

Schema Evolution

Hive Console

Open Source GraphQL Federation Platform (Schema Registry, Gateway, Analytics)

Inspector

GraphQL API Management and Schema Governance

Gateway

Hive Router

Open-source (MIT) GraphQL Federation Router. Built with Rust for maximum performance and robustness.

Hive Gateway

GraphQL Gateway for federated GraphQL with Subscriptions support and built-in security features

Subgraph / Schema

Mesh

Unifies your API landscape with its federated architecture, integrating any API into a cohesive graph.

Yoga

A fully-featured, simple to set up, performant and extendable server

Envelop

The simple yet flexible GraphQL plugin system that powers Yoga and Mesh

SOFA

Generate RESTful APIs from your GraphQL server

GraphQL-Scalars

Common custom GraphQL Scalars for precise type-safe GraphQL schemas

Developer Experience

GraphQL-Codegen

Generation of typed queries, mutations, subscriptions and typed GraphQL resolvers

GraphQL-ESLint

Customizable ESLint parser, plugin, and rule set for GraphQL

The Guild's Services

Work directly with the most powerful group of API developers that created the open source infrastructure you use today

Consulting
Make the right choices, for now and the future.
1. Current state assessment
2. Architectural review
3. Future-proof development plan
4. Focus on Developer Experience
5. Tooling
Training
Strengthen your team, tailored to your people and mission.
Engineering
Working side by side, us being an integral part of your team.
1. Integral part of your team
2. Coding practical tasks
3. Code reviews
4. Mentorship
Open Source
Get Open Source support from the actual creators.
1. Technical support
2. Covers the entire stack
3. Part of decision making process

Get in Touch

Looking to work with The Guild, learn more about our solutions or just validate with us your API strategy? We will be happy to speak with you and learn about your efforts for free!

How Hemnet Migrated Its GraphQL Backend Without Anyone Noticing

Hemnet is Sweden’s largest property platform, serving millions of users who browse, save, and search through real estate listings every day. Behind the scenes, a GraphQL API handles the bulk of these interactions, powering everything from listing pages and search results to user accounts and saved properties.

Mar 19th 2026