> For a complete page index, fetch https://docs.synthflow.ai/llms.txt. For full documentation content, fetch https://docs.synthflow.ai/llms-full.txt.

## Websocket endpoint deprecation

The websocket endpoint below, used for custom [website and app](/ws-media-integration) integrations, was deprecated on **June 15, 2026**. Migrate to [WS media integration](/ws-media-integration).

```bash showLineNumbers={false}
curl -X GET "https://widget.synthflow.ai/websocket/token/{assistant_id}"
```

#### Who is affected

This change **only affects integrations that connect directly to the websocket endpoint** above. If you are using the **Synthflow Widget embed**, you are **not affected**. Widgets will continue to work as expected.

#### What you need to do

Migrate to the Synthflow Widget embed before June 15, 2026.

## MCP Servers accept Headers and Query parameters

![MCP server headers and query parameters](https://storage.googleapis.com/granular-changelog/doc-images/mcp_servers_headers.png)

When you configure an MCP server, you can add **Headers** and **Query parameters** as key-value pairs. Use them for API keys, tenant IDs, or other values your server expects on every request.

See [MCP Connectors](/mcp-actions) for setup steps.