GraphQL Schema Generator

Name: OpenModels
Creator: OpenModels
License: https://github.com/openmodelsrun/openmodels

intermediatedevelopmentMin 32K context

Designs GraphQL schemas from domain descriptions or existing data models. Produces typed SDL with queries, mutations, subscriptions, input types, enums, and interfaces, following naming conventions, pagination patterns (Relay-style connections), and error-handling best practices. Can also generate resolvers scaffolding and map schemas to existing REST or SQL backends.

graphql schema api sdl backend resolvers

Use Cases

Designing a GraphQL schema for a new product domain
Adding Relay-style pagination to existing types
Generating resolver stubs from an SDL schema
Mapping a REST or SQL data model to GraphQL types
Reviewing a schema for naming and nullability best practices

Example Prompt

Design a GraphQL schema for a blogging platform with users, posts, comments, and tags.
Requirements:
- Relay-style cursor pagination on posts and comments
- Mutations for creating/updating/deleting posts with input types
- A subscription for new comments on a post
- Proper nullability and an error-handling convention

Output the SDL and a brief explanation of the key design decisions.

Recommended Models

claude-opus-4-8 gpt-5-5 gemini-3-1-pro qwen3-coder

Compatible Tools

claude-codecursorkiroany

Modalities

Input: text, code

→

Output: code, text

Author

OpenModels Community

@openmodelsrun