What is Zod and why generate schemas from JSON?

Zod is a TypeScript-first validation library. Generating a Zod schema from a JSON example gives you runtime validation — your app can verify that API responses match the expected shape before using them.

Does the generated Zod schema validate at runtime?

Yes. Copy the schema from the Types and Schemas tab and use schema.parse(data) or schema.safeParse(data) in your code. It throws or returns an error if incoming data does not match.

Can I customise the generated schema?

The generated schema is a starting point based on the example data. You can add .min(), .max(), .email(), .url() and other Zod refinements manually after generating.

Does it handle optional fields?

Fields with null values in the example are generated as .nullable(). For truly optional fields that may not be present at all, add .optional() manually after generating.

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Frequently Asked Questions

What is Zod and why generate schemas from JSON?: Zod is a TypeScript-first validation library. Generating a Zod schema from a JSON example gives you runtime validation — your app can verify that API responses match the expected shape before using them.
Does the generated Zod schema validate at runtime?: Yes. Copy the schema from the Types and Schemas tab and use schema.parse(data) or schema.safeParse(data) in your code. It throws or returns an error if incoming data does not match.
Can I customise the generated schema?: The generated schema is a starting point based on the example data. You can add .min(), .max(), .email(), .url() and other Zod refinements manually after generating.
Does it handle optional fields?: Fields with null values in the example are generated as .nullable(). For truly optional fields that may not be present at all, add .optional() manually after generating.