head to head · open source
osmedeus vs relay
osmedeus has 6,570 GitHub stars, 1,031 forks, 3 open issues and last shipped 8 days ago. relay has 843 stars, 65 forks, 286 open issues and last shipped today. osmedeus leads on adoption by 679% (6,570 vs 843 stars). osmedeus is written in Go under MIT; relay is written in TypeScript under Apache-2.0. osmedeus has attracted 16% as many forks as stars, relay 8%. relay was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (agentic-ai), 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.
← all 20902 open source comparisons
Side by side
| osmedeus | relay | |
|---|---|---|
| GitHub stars | ★ 6.6K | ★ 843 |
| License | MIT | Apache-2.0 |
| Written in | Go | TypeScript |
| Last push | 2026-09-12 | 2026-09-20 |
| Forks | ⑂ 1.0K | ⑂ 65 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick osmedeus if
- You weight community size — 6.6K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick relay if
- You want the relay feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and relay fits your workflow better
About osmedeus
Osmedeus is a security focused declarative orchestration engine written in Go and released under the MIT license. It turns complex security workflow automation into auditable YAML definitions, and it pairs that declarative model with encrypted data handling, secure credential management, and sandboxed execution. The project has been public for roughly eight years, carries about 6,563 stars and 1,030 forks, and lives in the penetration testing, reconnaissance, and attack surface management corner of the open source security ecosystem. It is distributed both as shell installed binaries and as the npm package @j3ssi…
read the full osmedeus overview →
About relay
Relay is a TypeScript, Apache 2.0 licensed real time messaging layer that gives AI agents shared channels, threads, direct messages, reactions, files, search and realtime events, and it is built for teams orchestrating multiple agents such as Claude Code, Codex or custom harnesses.
read the full relay overview →
More in Infrastructure & Operations
Related comparisons
More Orchestration & Scheduling projects
Compare either of these against the rest of the Orchestration & Scheduling field.
Frequently asked questions
Is osmedeus or relay more popular?
osmedeus has 6,570 GitHub stars and relay has 843. osmedeus has the larger community by that measure.
Are osmedeus and relay free?
Both are open source. osmedeus is licensed under MIT and relay under Apache-2.0. Neither carries a licence fee.
What is the difference between osmedeus and relay?
osmedeus is written in Go and relay in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, osmedeus or relay?
Choose osmedeus if you want the larger community (6,570 stars) or its MIT licence terms. Choose relay if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.