---
title: "GET /v2/experiment/{experimentId}"
method: GET
path: "/v2/experiment/{experimentId}"
tags: ["Experiment"]
---

# GET /v2/experiment/{experimentId}

`GET /v2/experiment/{experimentId}`

## Path parameters

- `experimentId` string, required

## Response `200`

Ok

- union
  - ResultSuccessExtendedExperimentData
    - `data` ExtendedExperimentData, required
      - `id` string, required
      - `name` string, required
      - `original_prompt_version` string, required
      - `copied_original_prompt_version` string, nullable, required
      - `input_keys` string[], nullable, required
      - `created_at` string, required
      - `rows` ExperimentV2Row[], required
        - `id` string, required
        - `inputs` RecordStringString, required — Construct a type with a set of properties K of type T
        - `prompt_version` string, required
        - `requests` ExperimentV2Output[], required
          - `id` string, required
          - `request_id` string, required
          - `is_original` boolean, required
          - `prompt_version_id` string, required
          - `created_at` string, required
          - `input_record_id` string, required
        - `auto_prompt_inputs` unknown[], required
          - unknown
    - `error` null, nullable, required
  - ResultErrorString
    - `data` null, nullable, required
    - `error` string, required

---

[API](https://skmtc.net/helicone/apis/helicone-api.md) · [All operations](https://skmtc.net/helicone/apis/helicone-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/helicone/helicone-api/revisions/b369e9e3e80c/schema)