★ 1.0k
August 2026
Not stated
Automation
What we checked ourselves
Not copied from the project's own blurb. These are things we opened and verified, with the date.
- 23 Aug 2026We checked that the link to the project still resolves.
- 14 Aug 2026We read the licence text itself (LICENSE) and found conditions attached to how it may be used.
- 1 Sept 2026We read the project's own documentation and found no sign that development has stopped.
Where this sits among the 29 tools we list in Automation
- Requires terminal commands9 that do not →
- Requires an API key13 that do not →
- Sends your input to the provider2 that do not →
Counted from our own checks: every tool we list is examined against the same criteria.
What it does
Drag-and-drop nodes for LLM calls, agents, RAG pipelines and multi-agent orchestration, with MCP support, deployable on your own machine from a single script and callable as an endpoint once built. The licence carries a Commons Clause: internal use is fine, selling the software itself is not — worth reading if you plan to build a product on it. Anything the workflow touches reaches your chosen model, and an exposed endpoint needs authentication in front of it.
Summary based on the project's own description. The Japanese page has a fuller beginner guide: setup difficulty, what to prepare, and a step-by-step start.
Screenshots & visuals
Before you start
- Setup difficultySome setup needed
- Command lineRequired
- API keyRequired
- Sends data onlineYes
Judged automatically from the project's own metadata. Always confirm on the official page.
heym FAQ
- Is heym free?
- heym itself is free, but it needs an API key for an external AI service. That service charges separately, though some have a free tier.
- Do I need to install anything or write code to use heym?
- It needs the command line. If you are not comfortable typing commands, expect to get stuck during setup.
- Does heym work on a phone?
- No. It needs a computer.
- Can I use heym commercially?
- Only under conditions. The page shows 記載なし, but the actual terms — the AI model this page runs, or the provider's own terms — attach restrictions. Check the provider's terms before using it at work.
How it compares
The conditions that decide whether you can actually use it, side by side.
| Tool | Command line | API key | Sends data out | Phone | Commercial use |
|---|---|---|---|---|---|
| heym (this page) | Required | Required | Yes | No | With conditions |
| n8n | Required | Not needed | Yes | No | Not verified |
| kestra | Required | Not needed | Yes | No | Yes |
| trigger.dev | Required | Required | Yes | No | Yes |
"Sends data out" means your input is uploaded to someone's server. Pick "No" when the material cannot leave your organisation.