---
title: "Stream Message Agent"
method: POST
path: "/a2a/agents/{id}/v1/message:stream"
tags: ["A2A"]
---

# Stream Message Agent

`POST /a2a/agents/{id}/v1/message:stream`

Stream a message to an Agno Agent (streaming). The Agent is identified via the path parameter '{id}'. Optional: Pass user ID via X-User-ID header (recommended) or 'userId' in params.message.metadata. Returns real-time updates as newline-delimited JSON (NDJSON).

## Path parameters

- `id` string, required

## Response `200`

Streaming response with task updates

- unknown

## Other responses

- `400` — Invalid request
- `404` — Agent not found
- `422` — Validation Error

---

[API](https://skmtc.net/agno/apis/agno-api-reference.md) · [All operations](https://skmtc.net/agno/apis/agno-api-reference/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/agno/agno-api-reference/versions/5f6149d395d0/schema)