---
title: "Op Create"
method: POST
path: "/v2/{entity}/{project}/ops"
tags: ["Ops"]
---

# Op Create

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

Create an op object.

## Path parameters

- `entity` string, required
- `project` string, required

## Request body

- OpCreateBody — Request body for creating an Op object via REST API. This model excludes project_id since it comes from the URL path in RESTful endpoints.
  - `name` string, nullable — The name of this op. Ops with the same name will be versioned together.
  - `source_code` string, nullable — Complete source code for this op, including imports

## Response `200`

Successful Response

- OpCreateRes — Response model for creating an Op object.
  - `digest` string, required — The digest of the created op
  - `object_id` string, required — The ID of the created op
  - `version_index` integer, required — The version index of the created op

## Other responses

- `422` — Validation Error

## Changes

- **2026-02-02** `56745769989b` — 1 info
  - endpoint added
- **2026-01-07** `3758bf263a5e` — 1 breaking
  - api path removed without deprecation
- **2026-01-07** `d6e39f7c717d` — 1 info
  - api operation id `op_create` removed and replaced with `op_create_v2__entity___project__ops_post`
- **2025-11-14** `e444bf379e61` — 1 info
  - endpoint added
- **2025-11-14** `b6cf2a1c4dac` — 1 breaking
  - api path removed without deprecation

[Full history](https://skmtc.dev/wandb/apis/fastapi/changes/v2/:entity/:project/ops/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/56745769989b/schema)