---
title: "List Training Job Checkpoints"
method: GET
path: "/v1/training-jobs/{job_id}/checkpoints"
tags: ["training-jobs"]
---

# List Training Job Checkpoints

`GET /v1/training-jobs/{job_id}/checkpoints`

## Request

- Base URL: `https://api.pioneer.ai` (the document declares no server; this is the origin it was published from)
- URL: `https://api.pioneer.ai/v1/training-jobs/{job_id}/checkpoints`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer
- TypeScript: <https://skmtc.dev/pioneer/apis/brain-api/docs/v1/training-jobs/:job_id/checkpoints/get.ts> (a function with typed inputs; its response is checked against the schema)

List all checkpoints for a training job visible to the caller's team.

## Path parameters

- `job_id` string, required

## Response `200`

Successful Response

- CheckpointListResponse: List of checkpoints response
  - `success` boolean, required
  - `checkpoints` CheckpointResponse[], required
    - `id` string, required
    - `job_id` string, required
    - `epoch` integer, required
    - `step` integer, nullable
    - `training_loss` number, nullable
    - `validation_loss` number, nullable
    - `accuracy` number, nullable
    - `learning_rate` number, nullable
    - `gpu_memory_used` integer, nullable
    - `gpu_memory_total` integer, nullable
    - `checkpoint_path` string, nullable
    - `is_deployable` boolean
    - `is_best` boolean
    - `is_final` boolean
    - `created_at` string, required
    - `updated_at` string, required
  - `count` integer, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-09-24** `0e5e86e2bae5`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/pioneer/apis/brain-api/changes/v1/training-jobs/:job_id/checkpoints/get.md)

---

[API](https://skmtc.dev/pioneer/apis/brain-api.md) - [All operations](https://skmtc.dev/pioneer/apis/brain-api/llms.txt) - [OpenAPI document](https://skmtc.dev/pioneer/apis/brain-api/revisions/0e5e86e2bae5?raw)