The arena-hero-mcp server bridges your AI client to the browser's IndexedDB for the game arena-hero, enabling real-time queries of explored map cells (resources and obstacles) via WebSocket. It provides the following tools:

• list_resources — Returns coordinates of all explored resource nodes. Data is refreshed on each call but may be stale.

• list_obstacles — Returns coordinates of permanent obstacles. This data is reliable.

• get_all_cells — Lists all non-empty cells (both resources and obstacles) in one call.

• snapshot_info — Shows snapshot metadata: cell count, namespace, update time, kind distribution, and browser connection status.

• refresh — Forces the browser to re-read IndexedDB and push an updated snapshot.

• get_userscript — Provides the full Tampermonkey userscript for installation, even without an active browser connection.

The server establishes a WebSocket connection to the browser, retrieves data on demand, runs persistently until the client exits, and automatically reconnects if the connection drops.

Provides the Tampermonkey userscript that bridges the browser to the MCP server, enabling AI to query the arena-hero game's exploration memory (resource/obstacle coordinates) stored in IndexedDB.

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@arena-hero-mcp List all resource coordinates I've explored"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.