---
title: "Register Session Asset"
method: POST
path: "/api/v1/creative-agent/sessions/{session_id}/assets"
tags: ["Creative Agent"]
---

# Register Session Asset

`POST /api/v1/creative-agent/sessions/{session_id}/assets`

## Request

- Base URL: `https://api.muapi.ai`
- URL: `https://api.muapi.ai/api/v1/creative-agent/sessions/{session_id}/assets`
- Auth: one of:
  - API key in header `x-api-key`
  - OAuth 2 (client credentials, token URL `https://api.muapi.ai/oauth/token`)

Register an externally-uploaded asset against a session so the agent can
reference it as `asset_N` in subsequent turns. WebSession picks these up on
init via `db_row.assets`, so the LLM sees them immediately.

## Path parameters

- `session_id` string, required

## Query parameters

- `team_id` integer, nullable

## Headers

- `x-api-key` string
- `x-embed-code` string, nullable
- `x-agent-embed-code` string, nullable
- `x-whitelabel-studio` string, nullable
- `authorization` string, nullable

## Request body

- RegisterAssetRequest
  - `url` string, required
  - `kind` string
  - `source_tool` string
  - `prompt` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/muapi/apis/muapi-api.md) · [All operations](https://skmtc.dev/muapi/apis/muapi-api/llms.txt) · [OpenAPI document](https://skmtc.dev/muapi/apis/muapi-api/revisions/e4b7374381e5?raw)