head to head · open source
osmedeus vs relay
osmedeus has 6,639 GitHub stars, 1,036 forks, 3 open issues and last shipped 1 months ago. relay has 1,089 stars, 96 forks, 286 open issues and last shipped yesterday. osmedeus leads on adoption by 510% (6,639 vs 1,089 stars). osmedeus is written in Go under MIT; relay is written in Rust under Apache-2.0. osmedeus has attracted 16% as many forks as stars, relay 9%. 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 | ★ 1.1K |
| License | MIT | Apache-2.0 |
| Written in | Go | Rust |
| Last push | 2026-10-04 | 2026-11-04 |
| Forks | ⑂ 1.0K | ⑂ 96 |
| 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 Rust
- You evaluated both and relay fits your workflow better
About osmedeus
Osmedeus Osmedeus A Modern Orchestration Engine for Security What is Osmedeus? Osmedeus is a security focused declarative orchestration engine that simplifies complex workflow automation into auditable YAML definitions, complete with encrypted data handling, secure credential management, and sandboxed execution. Built for both beginners and experts, it delivers powerful, composable automation without sacrificing the integrity and safety of your infrastructure. Key Features Declarative YAML Workflows Define pipelines with hooks, decision routing, module exclusion, and conditional branching across multiple runners…
read the full osmedeus overview →
About relay
Get your agents talking. Let Claude Code message Codex. Let your Hyperagent talk to your Hermes agent. Give your custom agents a way to message each other. Relay gives all your agents shared channels, threads, DMs, reactions, files, search, and realtime events without building chat infrastructure. Quick Start Relay requires Node.js 22 or newer. Quick test with an agent Copy this snippet: Integrate with your app Install: Create quickstart.ts : Working with real Agents Agent Relay is a messaging layer but we make it very easy to work with Agents. Claude Code, Codex, and OpenCode retain PTY as their automatic…
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 6,639 GitHub stars and relay has 1,089. 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 Rust. 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 (6,639 stars) or its MIT licence terms. Choose relay if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.