---
title: "엔진 상태 히스토리"
method: GET
path: "/api/v1/public/state-history/{symbol}/{primary_tf}"
tags: ["Public — Engine State", "Public — Engine State"]
---

# 엔진 상태 히스토리

`GET /api/v1/public/state-history/{symbol}/{primary_tf}`

## Request

- Base URL: `https://api.decker-ai.com`
- URL: `https://api.decker-ai.com/api/v1/public/state-history/{symbol}/{primary_tf}`
- Auth: none declared

state_transition_ledger 기반 per-bar 엔진 상태 스트림. bar_ts(Unix초), c_state, action_gate, mtf_verdict 반환. 프런트 차트 캔들 색상·구간 표시에 사용. X-API-Key 필수. limit 최대 1000.

## Path parameters

- `symbol` string, required
- `primary_tf` string, required

## Query parameters

- `since` string, nullable: ISO date 'YYYY-MM-DD' or datetime
- `until` string, nullable: ISO date 'YYYY-MM-DD' or datetime
- `limit` integer

## Headers

- `X-API-Key` string, nullable

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/decker-ai/apis/decker-public-api.md) · [All operations](https://skmtc.dev/decker-ai/apis/decker-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/decker-ai/apis/decker-public-api/revisions/fc19ddf728bf?raw)