Local hub your coding agents sign into: rooms, tasks, decisions, artifacts, memory. Desktop app.
Install
Run one of the commands below, then add the client config underneath.
See the client config below to connect.
About this server
Arc is listed in the Knowledge & Memory category of the MCPNav directory. It is distributed as an MCP server and can be loaded by any client that speaks the Model Context Protocol.
Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.
Frequently asked questions
What is the Arc MCP server?＋
Arc is an MCP server by megastructure. Local hub your coding agents sign into: rooms, tasks, decisions, artifacts, memory. Desktop app.
How do I install Arc?＋
Use the client configuration shown on this page and restart your MCP client.
Is Arc free to use?＋
The MCP server itself is free to install. Any third-party API it calls (such as a search or maps API) may require its own key and billing.
Which clients support Arc?＋
Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.