enum JSON Schema Keyword JSON Schema

Validation

Schema template

JSON Schema

{
  "type": "string",
  "enum": [
    "draft",
    "published",
    "archived"
  ]
}

Valid example JSON

"draft"

Invalid example JSON

"deleted"

Fields

Field	Type	Required	Description
`enum`	array	Yes	Lists every exact JSON value that is valid. Values are compared by JSON value, not by loose string conversion.

How to use this schema

Use enum for API fields that must stay inside a known vocabulary. Keep the list short and document what each allowed value means in surrounding API docs.

Version support and combinations

This keyword or pattern is commonly supported across modern JSON Schema workflows. Check your validator for Draft-04, Draft-07, 2019-09, and 2020-12 behavior before relying on newer composition or conditional features.

Common combination: pair this reference with type, required, and properties so validation errors are specific enough for API clients and form users.

Batch validation seed

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enum JSON Schema Keyword