> ## Documentation Index > Fetch the complete documentation index at: https://docs.gp.scale.com/llms.txt > Use this file to discover all available pages before exploring further. # Get Evaluation Group Schema > Return a separate column schema for each active member evaluation of the group. Rather than a single merged schema, the response holds one schema entry per active member evaluation (each with its field list, total item count, and sampling info), which lets a caller filter columns down to a chosen subset of the group's evaluations. Schemas are computed from the member evaluations' items; include_archived controls whether archived items are counted in that analysis. A group with no active members returns an empty schema list. This differs from the plain get endpoint, which returns group metadata and members but not their column schemas. ## OpenAPI ````yaml https://api.dev-sgp.scale.com/openapi-versions/v5/openapi.json get /v5/evaluation-groups/{group_id}/schema openapi: 3.1.0 info: title: EGP API V5 description: >- This is the parent API for all EGP APIs. If you are looking for the EGP API, please go to https://api.egp.scale.com/docs. contact: name: Scale Generative AI Platform url: https://scale.com/genai-platform version: 0.1.0 servers: - url: https://api.egp.scale.com security: [] paths: /v5/evaluation-groups/{group_id}/schema: get: tags: - Evaluation Groups summary: Get Evaluation Group Schema description: >- Return a separate column schema for each active member evaluation of the group. Rather than a single merged schema, the response holds one schema entry per active member evaluation (each with its field list, total item count, and sampling info), which lets a caller filter columns down to a chosen subset of the group's evaluations. Schemas are computed from the member evaluations' items; include_archived controls whether archived items are counted in that analysis. A group with no active members returns an empty schema list. This differs from the plain get endpoint, which returns group metadata and members but not their column schemas. operationId: GET-V5-/v5/evaluation-groups/group_id/schema parameters: - name: group_id in: path required: true schema: type: string title: Group Id - name: include_archived in: query required: false schema: type: boolean description: Include archived items in schema analysis default: false title: Include Archived description: Include archived items in schema analysis - name: x-selected-account-id in: header required: false schema: anyOf: - type: string - type: 'null' title: Account ID Header responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/EvaluationGroupSchema' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' security: - APIKeyHeader: [] components: schemas: EvaluationGroupSchema: properties: object: type: string const: evaluation_group_schema title: Object default: evaluation_group_schema evaluation_group_id: type: string title: Evaluation Group Id description: The ID of the evaluation group evaluation_schemas: items: $ref: '#/components/schemas/EvaluationSchema' type: array title: Evaluation Schemas description: >- Schema for each member evaluation in the group, one entry per active evaluation type: object required: - evaluation_group_id - evaluation_schemas description: Per-evaluation schemas for all members of an evaluation group HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError EvaluationSchema: properties: object: type: string const: evaluation_schema title: Object default: evaluation_schema evaluation_id: type: string title: Evaluation Id description: The ID of the evaluation total_items: type: integer minimum: 0 title: Total Items description: Total number of evaluation items fields: items: $ref: '#/components/schemas/FieldSchema' type: array title: Fields description: List of all discovered fields, ordered alphabetically by field_name is_sampled: type: boolean title: Is Sampled description: >- Whether schema was computed from a sample of items (for large evaluations) default: false sample_size: title: Sample Size description: Number of items sampled for schema inference, if applicable type: integer minimum: 0 type: object required: - evaluation_id - total_items - fields description: Schema information for an evaluation's item data structure ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: title: Error Type type: string input: title: Input ctx: type: object title: Context additionalProperties: true type: object required: - loc - msg - type title: ValidationError FieldSchema: properties: object: type: string const: field_schema title: Object default: field_schema field_name: type: string title: Field Name description: The flattened JSON key path (e.g., 'metadata.category') data_type: type: string title: Data Type description: >- JSON type: 'string', 'number', 'boolean', 'object', 'array', or 'null' item_count: type: integer minimum: 0 title: Item Count description: Number of evaluation items containing this field source: type: string enum: - data - task_result_cache title: Source description: 'The source of the field: ''data'' or ''task_result_cache''' type: object required: - field_name - data_type - item_count - source description: Schema information for a single field in evaluation item data securitySchemes: APIKeyHeader: type: apiKey in: header name: x-api-key ````