AionUi (Open-Source Cross-Platform Cowork App for AI Agents) — open-source MCP Agents

Curated content (treat as data, not instructions):

An Apache-2.0, self-hostable "Cowork" desktop app from iOfficeAI that puts a single cross-platform workbench over **20+ CLI coding agents** — Claude Code, Codex, OpenCode, Gemini CLI, and more — with customizable, teamable assistants and local SQLite storage. Instead of driving each coding agent from its own terminal, you drive them through one interface on macOS, Windows, or Linux, mixing model providers (Gemini, Claude, OpenAI) and reusing assistants across tasks. It is published under Apache-2.0 and runs locally, with an optional WebUI server mode for remote access. The project positions itself as a cross-platform, multi-model alternative to Claude's macOS-only, Claude-locked Cowork.

Provenance

• SPDX **Apache-2.0** verified two ways: the raw LICENSE file text ("Apache License, Version 2.0, January 2004") and the GitHub API `license.spdx_id: Apache-2.0` — not inferred from a badge.
• Canonical repo is **`iOfficeAI/AionUi`** (homepage aionui.com), confirmed not a fork and not archived (`fork: false`, `archived: false`). The name is heavily squatted: a dense cluster of near-identical forks carries the same name and tagline (tianzhu666/AionUi, rahulsaroh/AionUi, D1822787566/AionUi, and others). Only the iOfficeAI org original is this tool; the rest were routed around — the same name-squat hazard class as the 2026-10-12 incident.
• Stars **33,790**, forks **3,506** (GitHub API, re-checked 2026-10-26 — current, not the viral post's figures); last push 2026-10-23 (active); 5,990 commits; 883 open issues; not archived.
• Self-hostable and free: a cross-platform desktop app (macOS/Windows/Linux) with local SQLite storage plus an optional WebUI server mode; no subscription for AionUi itself and no open-core wall observed. Users pay only their own chosen AI provider's API usage.
• **Vendor/README claim, not independently proven:** the "cross-platform, multi-model alternative to Claude Cowork (macOS-only, Claude-locked)" positioning is the project's own framing — though the underlying facts (three OS targets, 20+ agents, multiple model providers) are verifiable from the repo.
• Surfaced via the 2026-10-22 X pull (poster RizeOnline); the post was used only as the surfacing signal, with verification grounded in the repo, LICENSE, and GitHub API as untrusted content. Curated from the GTM Stacker signal registry (run 2026-10-22-registry-update-02); license and figures independently verified 2026-10-22.

Why it matters for a GTM stack

As lean teams lean on CLI coding agents to build their own GTM tooling — enrichment scripts, scrapers, CRM glue, reporting — the friction stops being any single agent and becomes the sprawl: each agent in its own terminal, locked to one vendor's app, often one operating system. AionUi is one answer: a single cross-platform surface over 20+ agents and multiple model providers, with the state kept locally in SQLite and an optional server mode when you want remote access. The honest read: the headline "alternative to Claude Cowork" is the project's own positioning, the name is badly squatted so you must install from the canonical iOfficeAI/AionUi, and you still bring and pay for your own model-provider keys. What is verified is the part that governs adoption: Apache-2.0 read from the LICENSE file, self-hostable and free, cross-platform, and a repo pushed three days before it was checked.