Kaiten

Update a metadata field

Updates label and json_schema. `key` and `resourceType` are immutable, and `displayOrder` belongs to POST /metadata-fields/reorder. The new json_schema is validated against JSON Schema 2020-12 and the transition rules: type changes, cardinality changes, and free-string ↔ enum toggles are rejected with 422.

PATCH
/metadata-fields/{id}

Authorization

bearerAuth write:metadata_fields
AuthorizationBearer <token>

A JWT verified by the proxy in front of this API, or a Kaiten access token (ksh_...) — send either as Authorization: Bearer <token>. The scopes listed on each operation are the ones the token must carry; write:<module> implies read:<module>, and read:* / write:* are wildcards over every module. x-kaiten-scopes lists every scope such a token can carry, including those enforced by a service in front of this API rather than by one of its operations.

In: header

Scope: write:metadata_fields

Path Parameters

id*string

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Response Body

application/json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

curl -X PATCH "https://app.kaiten.sh/api/metadata-fields/string" \  -H "Content-Type: application/json" \  -d '{    "jsonSchema": {      "property1": null,      "property2": null    },    "key": "region",    "label": "Region",    "resourceType": "DEPLOYMENT_ZONE"  }'
{
  "archivedAt": "2019-08-24T14:15:22Z",
  "createdAt": "2026-05-26T12:00:00Z",
  "createdBy": {
    "id": "123e4567-e89b-12d3-a456-426614174000",
    "name": "John Doe"
  },
  "displayOrder": 0,
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "jsonSchema": {
    "property1": null,
    "property2": null
  },
  "key": "region",
  "label": "Region",
  "resourceType": "DEPLOYMENT_ZONE",
  "updatedAt": "2026-05-26T12:00:00Z",
  "updatedBy": {
    "id": "123e4567-e89b-12d3-a456-426614174000",
    "name": "John Doe"
  }
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}
{
  "code": "License.NotFound",
  "detail": "license not found",
  "errorId": "3f6b1a2c-7c1e-4d0b-9d5f-2b0a1c4e8d31",
  "errors": [
    {
      "location": "string",
      "message": "string",
      "value": null
    }
  ],
  "instance": "/api/licenses/enterprise",
  "status": 404,
  "title": "Not Found",
  "type": "https://tools.ietf.org/html/rfc7231#section-6.5.4"
}

Reorder metadata fields

Sets the displayOrder of the listed fields to their position in the array (0-indexed). All ids must belong to the same organization, resource type, and be non-archived; the entire reorder is applied in a single transaction.

Archive a metadata field

Soft-deletes a metadata field. The row stays in the DB (its archived_at is set) so historic metadata is still interpretable; the field stops appearing in the active schema composition.