head to head · open source
huginn vs pcm
huginn has 49,969 GitHub stars, 4,299 forks, 698 open issues and last shipped yesterday. pcm has 3,331 stars, 528 forks, 69 open issues and last shipped 3 days ago. huginn leads on adoption by 1,400% (49,969 vs 3,331 stars). huginn is written in Ruby under MIT; pcm is written in C++ under BSD-3-Clause. huginn has attracted 9% as many forks as stars, pcm 16%. huginn was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| huginn | pcm | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 3.3K |
| License | MIT | BSD-3-Clause |
| Written in | Ruby | C++ |
| Last push | 2026-09-18 | 2026-09-16 |
| Forks | ⑂ 4.3K | ⑂ 528 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick huginn if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick pcm if
- You want the pcm feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches C++
- You evaluated both and pcm fits your workflow better
About huginn
Huginn is an open source system for building agents that perform automated tasks online, written in Ruby and released under the MIT license. Its agents read the web, watch for events, and take actions on the user's behalf. Internally, agents create and consume events that propagate along a directed graph, which means one agent's output becomes another agent's input and a chain of small steps can be composed into a larger workflow. The project lives in the Ruby ecosystem and is distributed as an official Docker image or installed locally from a forked repository.
read the full huginn overview →
About pcm
Intel® Performance Counter Monitor (Intel® PCM) is a BSD 3 Clause licensed C++ API and command line toolset from Intel for monitoring the performance and energy metrics of Intel® Core™, Xeon®, Atom™ and Xeon Phi™ processors.
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Frequently asked questions
Is huginn or pcm more popular?
huginn has 49,969 GitHub stars and pcm has 3,331. huginn has the larger community by that measure.
Are huginn and pcm free?
Both are open source. huginn is licensed under MIT and pcm under BSD-3-Clause. Neither carries a licence fee.
What is the difference between huginn and pcm?
huginn is written in Ruby and pcm in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, huginn or pcm?
Choose huginn if you want the larger community (49,969 stars) or its MIT licence terms. Choose pcm if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.