Robrain MCP Server

by adelinamartio.github.adelinamart/robrainv2.4.9

Self-hosted decision memory for coding agents: captures architectural decisions and rejected alternatives, and warns before a rejected approach is re-proposed.

82Node.jsstdioofficial registry

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Active3d ago

Install Robrain MCP server

claude mcp add robrain -e PERCEPTION_API_KEY='<perception-api-key>' -- npx -y robrain mcp

{
  "mcpServers": {
    "robrain": {
      "command": "npx",
      "args": [
        "-y",
        "robrain",
        "mcp"
      ],
      "env": {
        "PERCEPTION_API_KEY": "<perception-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "robrain": {
      "command": "npx",
      "args": [
        "-y",
        "robrain",
        "mcp"
      ],
      "env": {
        "PERCEPTION_API_KEY": "<perception-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "robrain": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "robrain",
        "mcp"
      ],
      "env": {
        "PERCEPTION_API_KEY": "<perception-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "robrain": {
      "command": "npx",
      "args": [
        "-y",
        "robrain",
        "mcp"
      ],
      "env": {
        "PERCEPTION_API_KEY": "<perception-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
PERCEPTION_API_URL	—	—	Perception API URL. Optional — read from ~/.robrain/config.json after `npx robrain up`.
PERCEPTION_API_KEY	—	yes	Perception API key. Optional — read from ~/.robrain/config.json after `npx robrain up`.

Freshness

Active — last maintenance signal 3d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-07 · 3d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-04 · 2mo ago · official registry · v2.4.9

FAQ

›How do I install the Robrain MCP server in Claude Code?

Run: claude mcp add robrain -e PERCEPTION_API_KEY='<perception-api-key>' -- npx -y robrain mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Robrain require an API key?

Yes. It expects PERCEPTION_API_KEY, of which 1 is a secret.

›Can I use Robrain as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Robrain in the official MCP registry?

Yes, as io.github.adelinamart/robrain.