API Response & JSON Inspector
Inspect, validate and generate types from API responses.
Paste any REST, GraphQL, tRPC, or Laravel API response to explore it in a tree, see structural stats, detect the response pattern, and generate TypeScript, Zod, Laravel Resources, OpenAPI, JSON Schema, Pydantic, Go structs, and more — entirely in your browser.
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Generate tests for this response with the Test Case Generator, or if you need sample data to send in the first place, the Mock Data Generator can build a JSON payload from a schema. Pair this with the Tech Stack Matcher, the .gitignore Generator, the Sitemap Generator, and the Robots.txt Generator — or browse the full developer resources directory.
Need help designing or integrating a production API? 92 Nodes builds Laravel, Node.js, Next.js, and AI-powered backend systems.
Common questions
What is an API response inspector?+
A tool that lets you paste a JSON API response and explore its structure — an expandable tree, field types, JSON paths, and statistics — then generate types and schemas for the languages and frameworks you actually use.
Is my JSON uploaded to a server?+
No. Everything — parsing, inspection, and code generation — runs locally in your browser. Your response is never sent to 92 Nodes or anywhere else.
Can I convert JSON to TypeScript interfaces?+
Yes — the TypeScript tab generates both interfaces and type aliases, with nested types, arrays, optional fields, and nullable unions inferred from your sample data.
Can I generate a Zod schema from JSON?+
Yes, along with Valibot, Yup, and Joi schemas, each with a matching inferred TypeScript type where the library supports it.
Can this generate Laravel API Resources?+
Yes — the Frameworks tab generates a Laravel API Resource toArray() method, a validation rules array, and a readonly PHP DTO, all based on the shape of your sample response.
Does it support tRPC?+
Yes — it generates a suggested Zod output schema and a .output() usage example. It can't reconstruct your original router from a response alone, so treat it as a starting point.
Can I generate OpenAPI schemas from API responses?+
Yes — reusable OpenAPI component schemas are available in both JSON and YAML, alongside a JSON Schema Draft 2020-12 output.
Can I compare two API responses?+
Yes — switch to Compare mode, paste two responses, and see added, removed, and changed fields, including nullability changes.
Can it detect breaking API changes?+
Compare mode flags likely breaking changes (removed fields, changed types, newly nullable fields) separately from probably safe ones (new fields, new nullable fields) — always double-check against your actual API contract.
Does it support GraphQL responses?+
Yes — paste a { data, errors } GraphQL response and the tool detects it, then generates a suggested TypeScript type and GraphQL SDL type definition from the response shape.
Can I generate Python Pydantic models?+
Yes — the Python tab generates both TypedDict and Pydantic BaseModel classes, with nested models for nested objects.
Can I generate Go and Rust structs?+
Yes, along with Java records, Kotlin data classes, C# records, Swift Codable structs, and Dart model classes — all under the Types tab group.
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