---
title: "Evaluation Create V2"
method: POST
path: "/v2/{entity}/{project}/evaluations"
tags: ["V2 -- Evaluations"]
---

# Evaluation Create V2

`POST /v2/{entity}/{project}/evaluations`

Create an evaluation object.

## Request body

- EvaluationCreateV2Req
  - `name` string, required — The name of this evaluation. Evaluations with the same name will be versioned together.
  - `description` string, nullable — A description of this evaluation
  - `dataset` string, required — Reference to the dataset (weave:// URI)
  - `scorers` string[], nullable — List of scorer references (weave:// URIs)
  - `trials` integer — Number of trials to run
  - `evaluation_name` string, nullable — Name for the evaluation run
  - `eval_attributes` object, nullable — Optional attributes for the evaluation
  - `project_id` string, required — The `entity/project` where this evaluation will be saved
  - `wb_user_id` string, nullable — Do not set directly. Server will automatically populate this field.

## Response `200`

Successful Response

- EvaluationCreateV2Res
  - `digest` string, required — The digest of the created evaluation
  - `object_id` string, required — The ID of the created evaluation
  - `version_index` integer, required — The version index of the created evaluation
  - `evaluation_ref` string, required — Full reference to the created evaluation

## Other responses

- `422` — Validation Error

## Changes

- **2025-11-13** `148dfd663d45` — 1 breaking, 2 warning, 1 info
  - added the new required request property `project_id`
  - deleted the `path` request parameter `entity`
  - deleted the `path` request parameter `project`
  - added the new optional request property `wb_user_id`
- **2025-11-06** `e87e4b3f09b9` — 2 breaking, 2 warning
  - added the new path request parameter `entity`
  - added the new path request parameter `project`
  - removed the request property `project_id`
  - removed the request property `wb_user_id`
- **2025-11-06** `b1962be94f75` — 1 breaking, 2 warning, 1 info
  - added the new required request property `project_id`
  - deleted the `path` request parameter `entity`
  - deleted the `path` request parameter `project`
  - added the new optional request property `wb_user_id`
- **2025-11-06** `e87e4b3f09b9` — 2 breaking, 2 warning
  - added the new path request parameter `entity`
  - added the new path request parameter `project`
  - removed the request property `project_id`
  - removed the request property `wb_user_id`
- **2025-11-06** `e0fa7a1a394a` — 1 info
  - api operation id `evaluation_create_v2_v2__entity___project__evaluations_post` removed and replaced with `evaluation_create_v2`

[Full history](https://skmtc.dev/wandb/apis/fastapi/changes/v2/:entity/:project/evaluations/post.md)

---

[API](https://skmtc.dev/wandb/apis/fastapi.md) · [All operations](https://skmtc.dev/wandb/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/wandb/fastapi/revisions/148dfd663d45/schema)