sncro connects an assistant to a live development browser through a remote MCP relay and debug-mode application middleware.
sncro connects an assistant to a live development browser through a remote MCP relay and debug-mode application middleware.
sncro combines an MCP relay with a browser script and application middleware. The assistant can create a debugging session and request page or element information from the browser where the application is actually running. The user opens the session URL and approves the debugging connection before the injected script starts supplying data.
The repository provides FastAPI/Starlette and Flask middleware. Both documented integrations activate in debug mode. Connecting an MCP client to the relay alone does not make an arbitrary browser visible: the intended app needs the middleware, and the browser must join the session. The registry manifest supplies the hosted Streamable HTTP endpoint.
Use a development page with a known input or console error. Confirm the session is connected, request a snapshot and compare the returned element information with the visible page. Keep the application, browser session and requested data clear when diagnosing an issue. The relay, local middleware and proprietary dashboard are separate parts of the product.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| create_session | Create a browser debugging session. |
| query_element | Request element information from the connected browser. |
| get_page_snapshot | Request a snapshot from the connected browser. |
{
"mcpServers": {
"sncro": {
"url": "https://relay.sncro.net/tools/mcp"
}
}
}An HTTP MCP client, an sncro project and the documented debug-mode middleware in the target application.
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