Rube (discontinued May 2026)

Discontinued 2026-05

Rube was shut down in May 2026. Per search-result text quoting Composio’s pages (rube.app/deprecation, rube.composio.dev; neither could be fetched on 2026-10-02): new signups and upgrades stopped 2026-04-09, Rube Chat ended 2026-04-20, and the service shut down 2026-05-16 (another Composio page title says May 15) with payments refunded. Composio points users to Composio For You (MCP and CLI, works with any MCP client). Successor: Composio’s current products, see composio.dev.

Rube (historical)

by Composio (no company note in the vault)

MCP server that exposed 500+ apps to AI assistants through one endpoint (https://rube.app/mcp). No longer available.

Facts

• Rube was an MCP server built on the Composio integration platform, connecting assistants (Cursor, Claude Desktop, VS Code, Claude Code) to 500+ business apps through one endpoint, with Composio handling auth (Composio blog, earlier fetch).
• PulseMCP lists it as an official server released 2025-08-22 with no deprecation notice, so directories lag the shutdown (pulsemcp.com).
• The GitHub repo ComposioHQ/Rube returned 404 on 2026-10-01.
• Composio’s current offer (composio.dev, read 2026-10-01): “Composio For You” and the developer Composio Platform SDK; Composio states 1,500+ apps.
• Composio security incident (Composio’s own post, fetched 2026-10-02): in May 2026 an attacker reached internal systems via an infrastructure monitoring tool; about 0.3% of active connections were affected (5,001 GitHub connections) and 5,241 API keys were potentially exposed; by September 2026 Composio reported envelope encryption, OIDC authentication, and verification by IntrusionOps, AppSecure and Latacora. The post does not mention Rube.

Risk (any aggregator)

Centralising many app permissions in one hosted broker is a concentration risk, as the May 2026 incident illustrates: use read-only scopes first and review or revoke authorisations.

Compare: hypertool-mcp, tool-platforms, gradio-toolsets.

Limits

Exact shutdown day (15 or 16 May) rests on search-result text quoting Composio; its deprecation pages were unreachable.

Sources (accessed 2026-10-02)

• https://composio.dev/blog/composio-may-2026-security-incident
• https://composio.dev (Composio For You)
• https://www.pulsemcp.com/servers/composiohq-rube
• https://rube.app/deprecation and https://rube.composio.dev/ (search-result text only; fetch failed)