---
title: "Upload Usd Immediate"
method: POST
path: "/pipeline/upload-usd"
tags: ["pipeline"]
---

# Upload Usd Immediate

`POST /pipeline/upload-usd`

Upload a USD file and create a session for later pipeline execution.

## Response `201`

Successful Response

- SessionCreated — Response when session is created.
  - `session_id` string, required
  - `status` string
  - `message` string
  - `estimated_duration_minutes` integer, nullable — Estimated completion time

## Other responses

- `403` — Client S3 URI rejected by the configured bucket allowlist, or S3 access denied.
- `422` — Validation Error

## Changes

- **2026-07-21** `14f08fb85d12` — 1 info
  - added the non-success response with the status `403`

[Change history](https://skmtc.dev/nvidia/apis/physics-agent-service/changes/pipeline/upload-usd/post.md)

---

[API](https://skmtc.dev/nvidia/apis/physics-agent-service.md) · [All operations](https://skmtc.dev/nvidia/apis/physics-agent-service/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/nvidia/physics-agent-service/revisions/47f3bc191c91/schema)