Get Evaluation Set Item

Get details of an evaluation set item.

Authentication

AuthorizationBearer

Bearer authentication of the form Bearer <token>, where token is your auth token.

Path parameters

evaluationSetIdstringRequired

The ID of the evaluation set.

Example: "ev_2LcgeY_mp2T5yPaEuq5Lw"

itemIdstringRequired

The ID of the evaluation set item.

Example: "evi_kR9mNP12Qw4yTv8BdR3H"

Headers

Response

Evaluation set item details

objectenum

The type of object. In this case, it will always be "evaluation_set_item".

Allowed values:

idstring

The ID of the evaluation set item.

Example: "evi_kR9mNP12Qw4yTv8BdR3H"

evaluationSetIdstring

The ID of the evaluation set that this item belongs to.

Example: "ev_2LcgeY_mp2T5yPaEuq5Lw"

fileobject

A summary of the file associated with the evaluation set item.

expectedOutputobject

The expected output that will be used to evaluate the performance of the extractor, classifier, or splitter associated with the evaluation set. This must conform to the output schema of the entity associated with the evaluation set.

Errors

400

Bad Request Error

401

Unauthorized Error

402

Payment Required Error

403

Forbidden Error

404

Not Found Error

422

Unprocessable Entity Error

429

Too Many Requests Error

500

Internal Server Error

Bearer authentication of the form Bearer <token>, where token is your auth token.

The ID of the evaluation set.

Example: "ev_2LcgeY_mp2T5yPaEuq5Lw"

The ID of the evaluation set item.

Example: "evi_kR9mNP12Qw4yTv8BdR3H"

API version to use for the request. If you’re using an SDK, you can ignore this parameter. If you are not using an SDK and do not specify a version, you will either receive a 400 Bad Request or be set to a previous legacy version. See API Versioning for more details.

API version to use for the request. If you're using an SDK, you can ignore this parameter. If you are not using an SDK and do not specify a version, you will either receive a `400 Bad Request` or be set to a previous legacy version. See [API Versioning](https://docs.extend.ai/2026-02-09/api-reference/api-versioning) for more details.

The workspace ID to target. Required when using an organization-scoped API key; optional for workspace-scoped keys (the key is already tied to a workspace). See Authentication for details on API key scopes.

The workspace ID to target. **Required** when using an organization-scoped API key; optional for workspace-scoped keys (the key is already tied to a workspace). See [Authentication](https://docs.extend.ai/2026-02-09/api-reference/authentication) for details on API key scopes.

Evaluation set item details

The type of object. In this case, it will always be "evaluation_set_item".

The ID of the evaluation set item.

Example: "evi_kR9mNP12Qw4yTv8BdR3H"

The ID of the evaluation set that this item belongs to.

Example: "ev_2LcgeY_mp2T5yPaEuq5Lw"

A summary of the file associated with the evaluation set item.

1	from extend_ai import Extend
2
3	client = Extend(
4	token="YOUR_TOKEN_HERE",
5	extend_api_version="2026-02-09",
6	)
7
8	client.evaluation_set_items.retrieve(
9	evaluation_set_id="evaluation_set_id_here",
10	item_id="evaluation_set_item_id_here",
11	)

1	{
2	"object": "evaluation_set_item",
3	"id": "evi_kR9mNP12Qw4yTv8BdR3H",
4	"evaluationSetId": "ev_2LcgeY_mp2T5yPaEuq5Lw",
5	"file": {
6	"object": "file",
7	"id": "file_xK9mLPqRtN3vS8wF5hB2cQ",
8	"name": "Invoices.pdf",
9	"type": "PDF",
10	"parentFileId": "file_Zk9mNP12Qw4yTv8BdR3H",
11	"metadata": {
12	"pageCount": 30,
13	"parentSplit": {
14	"id": "string",
15	"type": "Invoice",
16	"identifier": "other_2_9",
17	"startPage": 1,
18	"endPage": 10
19	}
20	},
21	"createdAt": "2024-03-21T16:45:00Z",
22	"updatedAt": "2024-03-21T16:45:00Z"
23	},
24	"expectedOutput": {
25	"value": {}
26	}
27	}