Delete a dataset item

⚠️
Preview — this feature is being built; the design below is the spec.
DELETE https://app.syntic.ai/v1/evals/datasets/{dataset_id}/items/{item_id}

Remove one item.

For how this fits into a full workflow, see Evaluations.

Headers

HeaderRequiredValue
AuthorizationYesBearer <key>: a private inference key (sk_live_...). See Authentication.
syntic-betaYes, while in previewevals-2026-12-01. Without it the call fails with 400 beta_required. See Versioning.

Path parameters

ParameterTypeDescription
dataset_idstringStarts with evds_.
item_idstringStarts with evit_.

Response

200 OK, Content-Type: application/json

{
  "id": "evit_01JD24C6E8G0J2L4N6Q8",
  "type": "eval_item",
  "deleted": true
}

Examples

curl -sS -X DELETE "https://app.syntic.ai/v1/evals/datasets/evds_01JD13B5D7F9H1K3M5P7/items/evit_01JD24C6E8G0J2L4N6Q8" \
  -H "Authorization: Bearer $SYNTIC_API_KEY" \
  -H "syntic-beta: evals-2026-12-01"

Errors

Errors use the error envelope and carry a request_id. Codes specific to this operation:

StatustypecodeWhen
400invalid_request_errorbeta_requiredThe syntic-beta header is missing.
404not_found_erroritem_not_foundNo item with this id in the dataset.
401authentication_errorinvalid_api_keyThe key is missing, unknown, revoked or expired.
429rate_limit_errorrate_limitedToo many requests; wait for Retry-After. See Rate-limit headers.
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