---
title: "Update or create a branding asset blob. Requires admin authorization."
method: POST
path: "/xrpc/place.stream.branding.updateBlob"
tags: ["place.stream.branding"]
---

# Update or create a branding asset blob. Requires admin authorization.

`POST /xrpc/place.stream.branding.updateBlob`

## Request body

- object
  - `key` string, required — Branding asset key (mainLogo, favicon, siteTitle, etc.)
  - `broadcaster` string, did — DID of the broadcaster. If not provided, uses the server's default broadcaster.
  - `data` string, required — Base64-encoded blob data
  - `mimeType` string, required — MIME type of the blob (e.g., image/png, text/plain)
  - `width` integer — Image width in pixels (optional, for images only)
  - `height` integer — Image height in pixels (optional, for images only)

## Response `200`

Success

- object
  - `success` boolean, required

## Other responses

- `400` — Bad Request

## Changes

- **2026-04-20** `3353f5f6354a` — 1 info
  - endpoint added
- **2026-04-20** `f6e6f5a5a3cb` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/streamplace/apis/generated-lexicon-api-schema/changes/xrpc/place.stream.branding.updateBlob/post.md)

---

[API](https://skmtc.dev/streamplace/apis/generated-lexicon-api-schema.md) · [All operations](https://skmtc.dev/streamplace/apis/generated-lexicon-api-schema/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/streamplace/generated-lexicon-api-schema/revisions/8e2ce7f5d85b/schema)