---
title: "Evaluate a System One decision request (Jev / Kev)"
method: POST
path: "/v1/systemone"
tags: ["systemone"]
---

# Evaluate a System One decision request (Jev / Kev)

`POST /v1/systemone`

Available when a jev or openrouter provider is configured. The request and answer follow TypeSafe's System One API; models on providers without that API are rejected rather than translated.

## Request body

- object

## Response `200`

System One answers, in the provider's shape

- object

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `404` — Not Found
- `429` — Too Many Requests
- `502` — Bad Gateway

## Changes

- **2026-09-26** `b37d7dcf05e9` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/enterpilot/apis/gomodel-api/changes/v1/systemone/post.md)

---

[API](https://skmtc.dev/enterpilot/apis/gomodel-api.md) · [All operations](https://skmtc.dev/enterpilot/apis/gomodel-api/llms.txt) · [OpenAPI document](https://skmtc.dev/enterpilot/apis/gomodel-api/revisions/af74864aac7f?raw)