---
title: "Start Stream"
method: POST
path: "/v1/vision/stream/start"
tags: ["vision", "vision-streaming"]
---

# Start Stream

`POST /v1/vision/stream/start`

## Request

- The document declares no server URL.
- Auth: none declared
- TypeScript: <https://skmtc.dev/llama-farm/apis/llamafarm-edge-runtime/docs/v1/vision/stream/start/post.ts> (a function with typed inputs; its response is checked against the schema)

Start a streaming detection session with cascade config.

## Request body

- StreamStartRequest
  - `config` CascadeConfigRequest
    - `chain` string[]: Model chain, can include 'remote:http://...'
    - `confidence_threshold` number
  - `target_fps` number
  - `action_classes` string[], nullable
  - `cooldown_seconds` number

## Response `200`

Successful Response

- StreamStartResponse
  - `session_id` string, required

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/llama-farm/apis/llamafarm-edge-runtime.md) - [All operations](https://skmtc.dev/llama-farm/apis/llamafarm-edge-runtime/llms.txt) - [OpenAPI document](https://skmtc.dev/llama-farm/apis/llamafarm-edge-runtime/revisions/a23a9e72958b?raw)