Castforge (9569-2893 Québec inc.)
Castforge is a Windows desktop workspace that turns Claude Code, OpenAI Codex, Gemini, GitHub Copilot and other coding agents into a coordinated development team. It provides role-based planning, coding, testing, review, live previews and project memory while keeping code and credentials on the user's machine.
At a Glance
- Individual developers and solo builders
- Small software teams
- Developers building web applications with AI coding agents
- Users already subscribing to Claude, ChatGPT, Gemini, Cursor or GitHub Copilot
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AI Tools by Castforge (9569-2893 Québec inc.)
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Castforge
Multi Agent AI Coding Team
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Latest News
v0.6.7-beta: improved GitHub Copilot sign-in explanations, connection logging and verified-agent display
v0.6.6-beta: an empty role seat parks once instead of rechecking in a loop
v0.6.5-beta: cards with no assigned role seat park instead of crashing the run
v0.6.4-beta: bug-report logs, literal design briefs, corrected dependency roles and clearer parallel-lane behavior
Products & Services
A local-first multi-agent AI development workspace. Users connect up to 17 coding agents, assign them to Lead, Coder, Tester, Reviewer, Researcher and Designer roles, coordinate work on a live course board, run agents in isolated worktrees, preview applications, restore snapshots with Time Machine, maintain project memory and deploy web apps.
Market Position
Castforge positions itself as a Windows multi-agent development workspace rather than a single first-party agent app, conventional AI coding IDE, or fixed-pipeline orchestrator. Its differentiators are a reviewed role team spanning multiple agent providers, adaptive process depth, pre-run health checks, self-healing and honest verification states, isolated parallel branches, persistent decision history and per-role permissions. Named adjacent alternatives in its comparison include Claude Code, Codex, Gemini, Cursor, Windsurf, Copilot in an editor, the GitHub Copilot app, Devin and Conductor.
Leadership
Founders
Julien Abenhaim
Developer and solo founder based in Quebec; Castforge's official site identifies him as its founder and says he built it as a personal tool.
Executive Team
Julien Abenhaim
Founder
Developer in Saint-Bruno-de-Montarville, Quebec, who built Castforge as a personal tool and maintains its docs and changelog.
Founding Story
Abenhaim started Castforge in March 2026 after finding that running several coding agents side by side meant juggling multiple terminals, notes and unclear completion status. It evolved into a trustworthy multi-agent team with explicit roles, review, verification, project memory and truthful run state. It opened as a public beta in September 2026.
Business Model
Revenue Model
Castforge is free during early access. Users bring a GitHub Copilot sign-in, existing provider subscription or their own API key and pay the AI provider directly; Castforge says it does not mark up or resell model usage.
Pricing Tiers
Full AI dev team, unlimited messages and local projects, connected subscriptions or API keys, live preview, plugin marketplace, and GitHub, Vercel and Supabase integrations.
Target Markets
- Individual developers and solo builders
- Small software teams
- Developers building web applications with AI coding agents
- Users already subscribing to Claude, ChatGPT, Gemini, Cursor or GitHub Copilot
- Developers who prefer local code, credentials and agent execution
- Building web applications with multiple AI coding agents
- Planning, implementing, testing and reviewing software changes as a coordinated pipeline
- Running parallel coding lanes on isolated branches and merging through review gates
- Live UI preview and iterative design review
- Connecting existing AI subscriptions, provider API keys or local models
- Deploying through GitHub, Vercel and Supabase integrations