head to head · open source
openseo vs parlant
openseo has 26,086 GitHub stars, 3,573 forks, 161 open issues and last shipped 3 days ago. parlant has 18,318 stars, 1,553 forks, 41 open issues and last shipped yesterday. openseo leads on adoption by 42% (26,086 vs 18,318 stars). openseo is written in TypeScript under MIT; parlant is written in Python under Apache-2.0. openseo has attracted 14% as many forks as stars, parlant 8%. parlant was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| openseo | parlant | |
|---|---|---|
| GitHub stars | ★ 26K | ★ 18K |
| License | MIT | Apache-2.0 |
| Written in | TypeScript | Python |
| Last push | 2026-10-31 | 2026-11-02 |
| Forks | ⑂ 3.6K | ⑂ 1.6K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick openseo if
- You weight community size — 26K stars and counting
- You want the MIT license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick parlant if
- You want the parlant feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and parlant fits your workflow better
About openseo
OpenSEO Open source alternative to Semrush and Ahrefs OpenSEO is an SEO tool for the people . If tools like Semrush or Ahrefs are too expensive or bloated, OpenSEO is a pay as you go alternative that you actually control. All in one SEO tool for you and your AI agent. Connect with any agent like Claude Code, OpenClaw or Hermes. We have pre built skills, but you can build your own to tailor OpenSEO to your needs. Hosted Version Try OpenSEO for free on our website. If you want to support the project, a hosted subscription is $10/month. openseo.so Why use OpenSEO? Best in class MCP and AI Skills. Modern, simple UI…
read the full openseo overview →
About parlant
The interaction control harness for customer facing AI agents Website • Quick Start • Examples • Discord Deutsch Español français 日本語 한국어 Português Русский 中文 Looking for an open source alternative to Ada, Decagon, or Sierra? Parlant is production ready. It streamlines the development and maintenance of enterprise grade B2C (business to consumer) and sensitive B2B interactions that need to be consistent, compliant, on brand, and comprehensively traceable. Why Parlant? Conversational context engineering is hard because real world interactions are diverse, nuanced, and non linear. ❌ The Problem…
read the full parlant overview →
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Frequently asked questions
Is openseo or parlant more popular?
openseo has 26,086 GitHub stars and parlant has 18,318. openseo has the larger community by that measure.
Are openseo and parlant free?
Both are open source. openseo is licensed under MIT and parlant under Apache-2.0. Neither carries a licence fee.
What is the difference between openseo and parlant?
openseo is written in TypeScript and parlant in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, openseo or parlant?
Choose openseo if you want the larger community (26,086 stars) or its MIT licence terms. Choose parlant if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.