---
title: "Read headers from the running session-owned application preview"
method: HEAD
path: "/api/v1/sessions/{sessionId}/preview/app/*"
tags: ["sessions"]
---

# Read headers from the running session-owned application preview

`HEAD /api/v1/sessions/{sessionId}/preview/app/*`

## Request

- Base URL: `http://127.0.0.1:3001`
- URL: `http://127.0.0.1:3001/api/v1/sessions/{sessionId}/preview/app/*`
- Auth: none declared

## Path parameters

- `sessionId` string, required: Session identifier, e.g. project-1.

## Response `200`

OK

## Other responses

- `404`: Not Found
- `409`: Conflict

## Changes

- **2026-10-03** `ac97dcafa186`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/composiohq/apis/agent-orchestrator-http-daemon/changes/api/v1/sessions/:sessionId/preview/app/*/head.md)

---

[API](https://skmtc.dev/composiohq/apis/agent-orchestrator-http-daemon.md) - [All operations](https://skmtc.dev/composiohq/apis/agent-orchestrator-http-daemon/llms.txt) - [OpenAPI document](https://skmtc.dev/composiohq/apis/agent-orchestrator-http-daemon/revisions/3a5588b32f85?raw)