---
title: "Get Refine Status"
method: GET
path: "/refine/{session_id}/status"
tags: ["refine"]
---

# Get Refine Status

`GET /refine/{session_id}/status`

## Path parameters

- `session_id` string, required

## Response `200`

Refine status

- RefineStatus
  - `session_id` string, required
  - `status` string, required — pending, running, completed, failed, cancelled, cancelling
  - `iteration` integer — Current or final iteration number
  - `max_iterations` integer — Configured iteration cap
  - `n_trials` integer — Trials completed in current iteration
  - `max_trials` integer — Configured trial budget per iteration
  - `best_score` number, nullable — Best score observed in current/final iteration
  - `best_params` object, nullable — Best parameter set observed in current/final iteration
  - `judge_score` number, nullable — Latest judge score, when available
  - `termination_reason` string, nullable — approved, max_iterations, cancelled, error, or null while running
  - `elapsed_seconds` integer, required — Total elapsed time in seconds
  - `can_cancel` boolean, required — Whether refine can be cancelled
  - `error_message` string, nullable — Failure reason for terminal failed refine sessions.
  - `created_at` string, required
  - `updated_at` string, required

## Other responses

- `404` — Session not found
- `422` — Validation Error

## Changes

- **2026-07-21** `14f08fb85d12` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/nvidia/apis/physics-agent-service/changes/refine/:session_id/status/get.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)